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Hood
Post subject: Re: Fifth Generation Fighter ChallengePosted: February 28th, 2021, 9:55 am
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RaspingLeech wrote: *
I really love the VJ-5 but I'm curious how the GSh-30 in it fits 800 rounds when a Flanker or Fulcrum only carries 150?
Whoops! I got carried away! Edited down to 120.

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KoleonGray
Post subject: Re: Fifth Generation Fighter ChallengePosted: February 28th, 2021, 12:27 pm
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Mavic Corporation F/A-25 Kingfisher
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The illusion of peace since the end of The Great War and the concurrent Davnian Continental War was broken after Aldelian peacekeepers entered the city state of Zellingham, currently under turmoil due to anti-independence movements forming within the upper echelons of the government, resulting in the subsequent fall of the local government, and annexation of the region into Aldelian territory. Due to the proximity of the annexations, aerial interceptions skyrocketed on the borders, and came to a head in two separate unauthorised flights into Kallegian and Aldelian territories by two very unconventional aircraft. Nicknamed as "impromptu airshows" by The Nord, the two flights had very similar patterns, flying in low and fast, performing several aerobatics, then flying out low and fast soon after. They were hard to detect and harder to track by military radars, and flew out of range before any aircraft could respond. The appearance reported by eyewitnesses raised the suspicions of military officials, and those suspicions were all but confirmed when The Nord revealed their newest stealth fighter aircraft several years later.

Both Aldel and Kallego started work on their new stealth aircraft in response. Aldel responded with the Esper IV, an air-superiority fighter, and the CF.440, a multi-role aircraft, operated domestically and exported to its allies. Kallego had requested the purchase of the Esper IV, but was blocked due to export restrictions, and were told to "build one them self" by Aldelian military officials, so they did. Requests were sent out to several organisations within the country to create a new stealth fighter to catch up to their allies industrially, and two major design proposals were considered. One by Mardel Aerospace, the largest military aircraft builder in the country, and another by Mavic Corporation, a civilian aircraft builder that had recently purchased and absorbed The Kentarch Defense Company. Both proposals were considered, and at the end of the process the contract was awarded to Mavic, and designated the F/A-25 "Kingfisher", the third instance of a Kingfisher project within Kallego's military aerospace industry.

The F/A-25 Kingfisher is a large delta winged multi-role stealth aircraft. The aircraft is powered by two afterburning turbofans, provided by the United Turbine Corporation, with thrust vectoring nozzles attached to the exhaust to improve the maneuverability of the aircraft. However the aircraft was not designed to, and is highly recommended to avoid dog-fighting. Instead the aircraft was primarily designed to sit beyond the visual range of a target and fire missiles at it, before relocating and re-engaging before it can be spotted, officially known as "shoot'n'scoot tactics". As part of the design brief, the Kingfisher can perform this for both air and ground targets, as it's central weapons bays can hold several cruise missiles and medium range air-to-air missiles, however most ground attack missions have used the GO.250 glide bomb for close air support. As such the aircraft gained the nicknames "The Arsenal Brick", and "The SPAMRAAMer". Development was fairly smooth until mid way through flight tests, when an unknown aircraft flew within visual range of the aircraft. The Kingfisher was called to land back at it's test base, and aircraft were scrambled to intercept only to discover that the bright green seaplane, as described by the Kingfisher test pilot, had vanished from the airspace, last seen heading towards Kallego's southern neighbour, Ameti, who deny any involvement in the incident. Soon after images of the Kingfisher in testing found their way online, and the program which had been working in some modicum of secrecy, had the public eye on it once again, which the Kallegian MoD had come to despise as it brought up their previous failings when it came to detecting and tracking foreign invaders.

Development continued further with minimal issues, and the aircraft was greenlit for production, of which 210 have been ordered, and 87 of which are in full operational service as of the current year. Exports were blocked, firstly as a measure to prevent the capabilities of the aircraft from leaking as had happened with Mardel's F-20 export figher, and secondly as a petty retaliatory gesture to the Aldelians, although later on the aircraft was evaluated by the Aldelians themselves. While they had no intention of purchasing, they were intrigued with what their allies had produced, and following the evaluation released a statement commending the effort by Mavic, claiming that "Our allies have produced a formidable fighter, and we look forward to working with them in future when producing future technologies."

The aircraft has seen limited combat, primarily intercepting strategic bombers fielded by Andalowë skirting their northeastern border, and military aircraft fielded by Redwood, who tend to fly near the western coast of the nation.

General Statistics
Crew: 1
Length: 21.55 metres
Wingspan: 13.27 metres
Height: 2.94 metres
Empty Weight: 22,000kg
MTOW: 43,000kg

Performance
Engines: 2x United Turbine Corporation (UTC) ATF-310-25
Max Thrust: 29,000 lbf each dry, 38,000 lbf with afterburner
Maximum Speed: Mach 1.8 (regulated), Mach 2.1 (actual), Mach 1.4 (supercruise)
Service Ceiling: 12,500 metres

Armament
Gun: 1x 20mm GRU-2 Rotary Cannon, 410 rounds stored
Weapon Bays:
· 6-cell Main Bay (between cockpit and engine)
· 2-cell Central Bay (between engines)
· 2x Side Launchers
Air-to-Air Mission Loadout:
· 6x AMRAAM-4 (Forward Bay)
· 2x AMRAAM-4 (Central Bay)
· 2x SRAAM-6 (Side Launchers)
Air-to-Ground Loadout (Short Range):
· 10x GO.250 Glide Bombs and 2x AMRAAM-4 (Forward Bay)
· 2x AMRAAM-4 or 6x GO.250 Glide Bombs(Central Bay)
· 2x SRAAM-6 (Side Launchers)
Air-to-Ground Loadout (Long Range):
· 4x LRAGM-2 Cruise Missiles and 2x AMRAAM-4 (Forward Bay)
· 2x AMRAAM-4 or 2x LRAGM-2 Cruise Missiles (Central Bay)
· 2x SRAAM-6 (Side Launchers)
Misc:
· Up to 4 external hardpoints can be attached to carry 4 external fuel pods.

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Victoria
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 3rd, 2021, 9:28 pm
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The year was 1983, and the Eurofighter program had just begun. Though this new aircraft was meant to be a multi-role, there was one radical idea, from the past. Many remembered the F-104, and many were still in use. The idea of an interceptor, built to go fast enough to outpace any Soviet bomber and catch up to it for the launching of air-to-air missiles, and destroy them before they could drop their payloads on Western European cities. Though there was some resistance from many of the nations, it was eventually agreed that a replacement for the F-104 and a plane built to fill the same role should be developed. The nations participating would be many of the same ones who had F-104s of their own at one point, with some notable exceptions, with Britain joining the program as well.

The plan went through many revisions, with the insistence of the top quality being used for the aircraft, it had to be the most modern interceptor available. Slowly the plane was revised, to become a new breed of aircraft from its original plans, with bombing capabilities added by request of the Luftwaffe, for a multi-role aircraft capable of bombing, leading to the beginning of a new project for bombs, to be the Guided Bomb Project/European Joint Project, or just simply GBP-EPJ. Then, stealth became a requirement, and the plane was redesigned to carry its ordinance internally, limiting its carrying capability to four AIM-9 missiles or 2 GBP-EBJ bombs. However, in 1986, a new requirement was added, that it must carry European designed air to air missiles, leading to another new project, the European Joint Infra-Red Imaging System Tail/Thrust Vector Controlled Project, or the EJIRIST-TVCP.

Costs continued to balloon as newer requirements were added, in an attempt to keep the aircraft at the most modern capabilities. Due to this, many nations dropped the program, instead deciding to merely continue the use of pre-existing designs, or buy designs from the Americans, two notable members being the Netherlands dropping out of the program in 1993 as it saw no use to continue the program with the end of the Cold War, followed shortly after by Belgium in 1995. However, in 2004 the first flight of the aircraft occurred, and the aircraft was named, the Eurofighter Hurricane, despite protests of the now unified Germany, with the name referencing the Hawker Hurricane, which gained fame during the Battle of Britain, intercepting German bombers. Eventually, the aircraft was adopted in 2008, with aircraft entering service in Italy, Germany, Denmark, and Britain.

The aircraft was entered into service with the ability to carry four EJIRIST-TVCP heat-seeking missiles or two GBP-EJP bombs, and with an M61 Vulcan rotary gun, being the only non-European produced part in the aircraft. The M61 Vulcan has 400 rounds of ammunition total, with ammunition being sacrificed from the F-104 for more space for electronics. The powerplant was a European-produced, upgraded variant of the J79 General Electric engine found in the F-104 Starfighter.

The aircraft, however, was unstable due to a small tail wing, and a rather large body to accommodate all the electronics given to the aircraft, including computers to help keep the aircraft stable. It saw good service with these nations, however, it never saw air to air combat. In the end, the aircraft was an extremely fast, and rather stealthy aircraft, but it had many problems, which would lead to it being retired in 2015 with the RAF, due to rising costs of maintenance, and the lack of a need for an interceptor, 14 of Britain's Hurricane's being sold to the United Arab Emirates, and 20 being sold to Saudi Arabia, with 2 remaining in Britain to be used as museum pieces. In Germany, the aircraft remains in service, though it has been criticized as a waste of money and is under scrutiny because, out of 78 of the aircraft in service with the Luftwaffe, only 14 are in a state of operational integrity, with only 10 of the Marinefliegers 57 being operational. In Italy, the aircraft is used as a replacement for the F-104S, being used to patrol the Italian coastline and ensure that it is not under threat, with it seeing good service in Italy. In Denmark, very few were ordered, however, they were well received by their pilots, and were well regarded as well for their speed, and maneuverability at such speeds.

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(Pictured: Kapitänleutnant Ingo Weidhase's Hurricane with Jagdbombergeschwader 31 of the Marineflieger)

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(Pictured: Kaptajn Jorgen Sørensen's Hurricane with Eskadrille 855 of the Danish Royal Air Force)

[ img ]
(Pictured: Primo Capitano Andrea Greco's Hurricane with 30º Stormo of the Italian Air Force)


Last edited by Victoria on March 4th, 2021, 10:26 pm, edited 3 times in total.

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Soode
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 4th, 2021, 5:03 pm
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Songrim SR-12

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The Songrim SR-12 (Formal designation: 송림 12호 전투기 / 松林十二號戰鬪機, Songrim Sibi-ho Jŏntugi, "Songrim No.12 Fighter;" Short designation 송림-12 Songrim-Sibi "Songrim-12") is an all-weather twinjet fifth-generation jet fighter developed in Menghe by the Songrim Aircraft Corporation. It is designed as a multirole combat aircraft capable of taking on both air superiority and precision ground attack roles.

After a long development project spanning the 2000s, the SR-12 made its first flight in May 2015, and was first publicly unveiled at the 2019 Victory Day celebration. As of March 2021, roughly a dozen production-model SR-12 airframes are in service with a training and evaluation squadron, but no deliveries to combat-ready units have been made, and initial operating capability is scheduled for 2024. This development and evaluation timeline, unusually slow by Menghean standards, may be part of an effort to iron out safety issues and stealth compromises before deploying the plane to front-line bases.

Tl;dr of stealth realism
  • Planform alignment: Leading edges at 45 degrees, trailing edges at 8 degrees, side surfaces at 60 degrees.
  • Intakes: Diverterless supersonic intakes with S-bend internal channels.
  • Sawtooth panel lines: Yes, at 45 degrees.
  • Supercruise capability: Pending. Domestic high-power turbojets are in development but unreliable, so early production models use existing engine models and are not supercruise capable.
  • Supermaneuverability: Production model has 2D thrust vectoring, including thrust-vectored rolls achieved by vectoring in opposing directions. Thrust-to-weight ratio is 1.02 on full internal fuel, disappointing but also pending the introduction of more powerful engines on later variants.
  • Built-in air-to-ground capability: Optics and laser unit under the nose eliminates the need for an external targeting pod.
  • Radar: Phased array set with low-RCS antenna, reduced probability of intercept via frequency hopping, track-while-scan capability, and active ECM capability.
  • Sensor fusion: Radar augmented by active radar MAWS (four antennas), infrared MAWS (six lenses), and forward-looking IRST (above and below nose). Pilot has a helmet-mounted display as well as a conventional HUD. Lower cockpit uses multifunction LED displays.
Development
Preliminary work
The Songrim Aircraft Corporation began preliminary work on a stealth fighter some time around 1999 or 2000, producing a series of conceptual sketches under the designation "JG-S." Most of this work was done under the leadership of Han Mun-su, a talented designer and advocate of stealth aircraft. The Ministry of National Defense expressed interest in the aircraft, as nearby Dayashina was the only country in Septentrion to operate 5th-gen fighters, but after the resolution of the Renkaku Islands dispute in 2001 the urgency of this requirement disappeared. Nevertheless, Han argued successfully for a small stream of funding to support conceptual studies of stealth aircraft.

State interest in a fifth-generation fighter increased after 2005, when relations with Anglia and Lechernt, Innominada, and Maverica soured over the Ummayan Civil War. The MoND's initial emergency plan focused on accelerating procurement of existing designs and pushing in-progress weapons into service, but by 2010 Han Mun-su and his work team were given the green light to expand the JG-S project, with new funding tied to the completion of a flyable prototype by May 2013.

Challenges
Even with consistent state support, Songrim's JG-S project met repeated delays due to the plane's technological complexity. The engineers struggled with radar-absorbent materials and configurations, which were at the cutting edge of even the leading military powers' research. As the JG-S project was a state secret, Songrim was also unable to seek input from engineers in Dayashina and Tír Glas, which closely guarded their own stealth aircraft projects.

These problems were compounded by gradual mission creep. As the years passed, the "fifth-generation" requirement was expanded to include a new sensor suite and electronic warfare system, demanding requirements that called for new electronics and lengthy computer code. While the initial design was purely conceived of as an air superiority fighter, the MoND later insisted on organic ground-attack capability, including the ability to carry 1000-kilogram guided bombs.

Other delays stemmed from the engines: initially Songrim opted to use an up-rated version of the Donghae Type 74 turbojet, itself a licensed TF-530, but the increasingly heavy airframe cancelled out the gains from higher wet thrust, and left the plane slower at dry military power. Development of a supercruise-capable engine encountered repeated delays, as the high temperatures and pressures required very durable turbine blades.

As a result of all these delays, by the May 2013 deadline Songrim had failed to produce a full-scale prototype, let alone conduct flight tests. A year later, Songrim delayed its proposed timetable yet again, citing problems with the airframe materials and the engine improvement program. Subsequently released documents suggest that Choe Sŭng-min repeatedly expressed deep dissatisfaction with the prototype's delays and cost overruns, suggesting that the MoND cancel the JG-S and redirect funds toward procurement of more SR-8s and DS-9s. For a time, the stealth skeptics seemed poised to crush the program, but the outbreak of the Innominadan Crisis in September 2014 heightened the sense of urgency around military development. As the Glasic-Hallian Huntress and Letnian MiG-55 fifth-gen fighters entered production overseas, and as tensions with Maverica escalated, Songrim secured new funding for the JG-S, but was also given stern deadlines to put it into service.

Testing
The first test flight with a JG-S prototype took place on May 4th, 2015, and lasted for a total of 25 minutes. No announcements about the test were made, and no photographs were released. After several months of work on avionics, a second, 90-minute flight took place on August 12th. This time, photographs specially approved by the Ministry of National Defense were released to the press, though the images were of poor quality and the announcements that accompanied them said little about the plane's characteristics.

A thin stream of vague but confident reports on JG-S progress continued until early 2016, when the MoND abruptly stopped releasing any information about the new stealth fighter program. Around the same time, online censors began targeting any online or press discussion of the plane's status. Analysts abroad speculated that the program had been cancelled, or that the design team had been purged; only in late 2019 was it confirmed via a leaked document that the second prototype had crashed after one of its experimental Donghae Type 110 engines exploded mid-flight, killing the pilot and destroying the plane.

After the crash, development proceeded more slowly, at the cost of additional delays. The third prototype carried Glasic engines of the same type used on recent Iolar models, imported and later licensed for the SR-8, with more thrust than the first prototype's Type 74 but less than the experimental Type 110. There were also rumors, still unconfirmed, of problems with the fly-by-wire system, the radar, and the lengthy programming tying together the sensor suite.

New images of the fighter were released in early December 2017, ending a year and a half of closely enforced silence, though detailed information remained scarce. A few months later in May, a scale model of the aircraft appeared at a tech expo celebrating the 30th anniversary of Menghe's opening-up and reform, giving visitors the first all-round view of the new aircraft. The model also bore the designation SR-12, a sign that it had been accepted for service, and included a brief description of its capabilities.

The SR-12 made its first public appearance on July 27th, 2019, with three aircraft flying over Donggwangsan during a military parade celebrating the 55th anniversary of Menghe's victory in the War of Liberation. During this overflight display, the parade announcer stated that the SR-12 had been accepted for service and was ready for low rate initial production, with deliveries of production airframes expected to take place the following year. In the months that followed the parade reveal, the Ministry of Defense also began publishing more detailed information on the SR-12's features and capabilities, painting a more thorough, if possibly optimistic, picture of Menghe's first fifth-generation fighter.

Introduction and evaluation
Despite these optimistic announcements, the SR-12 has not yet been delivered to combat units. A separate press release issued in January 2020 stated that the fighter would reach initial operating capability in 2023.

The first production-model SR-12 made its first flight on March 3rd, 2020. While the previous two aircraft were workshop-built units, these units were internally and structurally identical to later production units. After the Menghean Ministry of National Defense released photos of the taxi runs and test flights, observers noticed a number of differences between the production models and the prototypes unveiled in December 2017 and July 2019:
  • The side missile bays had single rather than double doors.
  • The doors of the landing gear compartments were enlarged.
  • The leading-edge wing flaps were made of a different material.
  • The underside of the nose was more squared-off and less rounded.
  • Attachment points for under-wing pylons were added.
  • Forward radar warning receivers were moved from the sides of the nose to the sides of the intakes.
Production-model aircraft made another appearance at the Songrimsŏng airshow and defense exposition in February 2021. This airshow included the first clear images of the SR-12's open weapons bays, previously distinguishable only from panel lines. The centerline weapons bay was shown with six YGG-7 Hwasal missiles, with the center missile on each side offset forward to clear the space around the fins. This in-flight missile display also revealed the reasoning behind the shift from two-panel to single-panel side bays: the SR-12 can extend an arm carrying an air-to-air missile on a launch rail outside the weapons bay, then close the door behind it, blocking radar reflections from the inside of the weapons bay while allowing the exposed missile to acquire a target's infrared signature. Small notches in the weapons bay door, normally covered by small panels, leave space for the struts connecting the launch rail to the airframe inside.

Better-quality photographs from the 2021 airshow also confirmed that the production-model SR-12 eliminated some panel lines and structural rivets that independent analysts had previously identified as flaws in the prototype's stealthiness.

Currently (as of March 2021), it is believed that roughly a dozen production-model SR-12s are undergoing initial operational testing and evaluation (IOT&E) at a remote site in northern Menghe. The base's distance from the front line, along with the duration of testing, suggests that the Menghean Armed Forces are adopting an unusually cautious approach to the SR-12's late development process, possibly a response to the loss of a prototype in early 2016. Photos and press releases, while drumming up attention about the SR-12, have been deliberately vague about its performance characteristics, and observers from Menghe's closest allies have been denied access to the test site. A press release in January 2021 stated that the projected deadline for IOC had been moved back from 2023 to 2024, which would put the total length of the development program at close to 25 years.

Foreign assistance
The relatively early appearance of the first JG-S prototype - just a year after Septentrion's first fifth-generation fighters entered operational service - fed extensive speculation about whether Menghe had imported most of the jet's technology from abroad. Tír Glas, Dayashina, and Hallia, all participants in the Huntress fighter jet project, had licensed military electronics to Menghe in the past.

A spokesperson for Glasic International Aircraft confirmed in 2017 that GIA had shared certain dual-use technologies, including carbon fiber aircraft skin and titanium alloys, with Menghean companies, but also stated that this was part of a previously negotiated technology transfer deal negotiated before the existence of JG-S was known. GIA denied sharing any information on radiation-absorbent material, or on the principles of stealthy airframe design. Representatives of Dayashinese and Hallian aerospace contractors have also denied turning over sensitive or classified information, including radar and passive sensor designs. Some less sensitive components, including the autocannon and the production-model engines, are known to be built under license, but were approved for export in relation to earlier Menghean combat aircraft.

For its part, the Menghean Ministry of National Defense insists that the aircraft is "fundamentally domestic in design," though it acknowledges building on undisclosed "state-of-the-art materials and principles." The radar-absorbent material is purportedly entirely indigenous, and may be related to radar-absorbent composites used on the SR-8R and the DS-9D/R, which are also purportedly indigenous.

Design

Layout
Compared to most of Septentrion's other fifth-generation fighter programs, which incorporated lambda wings, diamond wings, and canards, the SR-12 follows a rather conservative tailed delta layout, reminiscent of Songrim's SR-8. Letnia's MiG-55 follows a similar configuration. Some defense analysts have speculated that the SR-12's conventional design may compromise its radar cross-section, with one calling it a "display-only stealth fighter." Others have presented more cautious assessments, noting that it displays good planform alignment and has other RCS-reducing features.

The SR-12 is also the largest and heaviest of Septentrion's three service-ready fifth-generation fighters, a characteristic which became apparent as soon as the first taxiing photographs were released. In conjunction with a proportionally larger wing area, this gives it a longer range, a heavier payload, a larger bomb bay, and more space for supplemental radar antennas. Like the SR-8, it may be intended as a "high-cost, high-capability" fighter, which will pair with a mass-produced "low-cost, low-capability" design; but Daesŭngri's DS-13 fifth-generation program has yet to produce a flying prototype, so the SR-12 may instead be complemented by reduced-RCS variants of the SR-8 and DS-9.

Performance
The production-ready model of the SR-12 appears to use the Donghae Type 89/160 turbofan, which Menghe licensed from Tír Glas for the "R" variant of the Songrim SR-8 in 2017. The engine nozzles, also adapted from the SR-8R, incorporate two-dimensional thrust vectoring for increased maneuverability and thrust reversal for shorter landing distances.

While the SR-8R is supercruise-capable and has an excellent thrust-to-weight ratio, the SR-12 is larger and heavier despite having the same power. State sources have not released any information on its top speed using maximum military power, but independent estimates suggest that it should be incapable of supercruise. This means that in order to cruise at supersonic speeds, the SR-12 must rely on reheating, which greatly increases fuel consumption and leaves a larger infrared signature.

Diverterless supersonic intakes on either side of the fuselage eliminate the need for heavy variable-geometry intakes, which could compromise frontal stealth. The airflow from the intakes is also piped up through the back of the fuselage through S-shaped conduits, such that the radar-reflective turbine blades are not visible from in front of the aircraft. Jagged panels on top of the fuselage allow the aircraft to bleed out excess intake airflow; some defense analysts have speculated that these panels could be reversed to serve as auxiliary intakes during rough-field landings, but their position would supply very little positive air pressure.

Background footage from a factory inspection in 2020 shows that a panel on the right side of the cockpit conceals a retractable refueling probe, which would allow the SR-12 to further extend its range on long-distance ferry flights or over-sea strike missions. Footage of a pre-production model taxxing at an airbase, released later that year, confirmed the probe's presence.

Sensors and electronics
The SR-12 has six infrared-spectrum cameras distributed around the fuselage to provide 360-degree detection and imaging. Conceptually, the array is reminiscent of the Dayashinese AN/AAQ-37, though Menghean sources claim that the cameras and their network are of domestic design. If functionality is similar between the two systems, these cameras will allow the SR-12 to detect aerial targets, ground vehicles, and missile launches in all directions, improving the pilot's situational awareness.

These are supplemented by passive radar antennas in the wings and vertical stabilizers, which can pick up on emissions from aircraft, missiles, and ground installations, cross-referencing these with infrared signals to eliminate false positives.

The nose contains an advanced AESA radar of domestic design and construction. In addition to reducing radar reflections, the scanned-array layout allows the radar to simultaneously form multiple target-tracking beams over a wide area while also scanning the full sky or regions of interest. Beams can also be pointed at returns from passive detection, allowing target tracking with minimal emissions or focused tracking of low-RCS targets. State sources report that the radar is immune to jamming and passive detection, which likely indicates the use of high-rate, pseudo-random frequency hopping, and it is possible that it incorporates a built-in high-powered jamming capability.

An angular glass aperture underneath the nose reportedly contains an electro-optical targeting system with a high-resolution infrared camera and a laser designator. This eliminates the need for an external targeting pod like Maenun, which would increase drag and radar returns. A large infrared aperture above the nose likely contains an IRST system for passively identifying airborne targets.

Cockpit and avionics
A mock-up training cockpit revealed to expo visitors in 2020 shows a large multi-function LCD screen in the center and a narrower display centered beneath it. The absence of screen-side buttons has led some observers to speculate that the displays may be touchscreens, or more reliant on HOTAS controls. The glass cockpit layout is even more thorough than that on the SR-8 and DS-9, which still retained some analog or steam dials, though the training cockpit also appears to omit some functions and may not fully represent the production fighter's avionics. Some non-combat functions can be activated by voice command, a feature also present on late-model DS-9s.

Interestingly, the control column appears to be located on the right side of the cockpit, even though all previous Menghean fighter aircraft used a centre stick layout. The reason for this change is unclear; it may be intended to free up more space ahead for display screens. So far there have been no reports that the Menghean Army will order DS-10 trainers with the side-stick layout.

The SR-12 is fully integrated with the joint-developed Keikō helmet-mounted display, which projects sensor information into the pilot's field of view and allows off-boresight targeting of certain missiles. Unlike the Huntress, it retains a full-function reflective head-up display centered in front of the pilot, indicating that Menghean designers did not opt for increased reliance on the helmet-mounted display.

The aircraft's canopy is reportedly made of an advanced composite material which reduces high-temperature strain and absorbs radar emissions which could otherwise reflect off of the pilot or cockpit instruments. The first prototype had a clear canopy, but on the production-ready parade variants it appeared slightly purple or gray.

Armament
Photos of the first prototype surprised many observers due to the apparent absence of a gun port. Nor was any mention of gun armament made in official press releases. The mockup displayed in May 2018 also contained no visible gun port. The parade reveal the following year mentioned a single 6-barrel 24mm cannon, which careful observers eventually traced to a small panel under the right wing root; when retracted, this allows the gun to fire, but the rest of the time it remains flush with the plane's skin to reduce drag and radar returns.

Other armament is carried in three internal weapons bays. One, centered under the fuselage, has space for six YGG-7 Hwasal missiles, in a clipped-fin variant. The missiles are slightly staggered to fit closer together, and they are mounted on special ejector arms that propel them free of the bay before the rocket motor fires. State sources also claim that some of the launch arms can be replaced with hardpoints for bombs of up to 1,000 kilograms, though there is still speculation about how this is accomplished spatially. Two more weapons bays, one on each side of the fuselage behind the intakes, carry short-range infrared-guided missiles. There are two attachments for pylons under each wing, allowing mounting of even more missiles or bombs, but because these positions compromise the plane's stealth they are mainly used to carry fuel tanks on ferry missions.

A placard displayed at the February 2021 Songrimsŏng airshow unveiled additional information about the SR-12's payload management system, and provided a list of weapons that were being tested on the aircraft. In addition to air-to-air missiles, the SR-12 will be able to carry medium-range cruise missiles, guided bombs, and anti-radiation missiles. These options will make it effective in the air-to-ground role. Also on display was a scale model of a stealthy weapons pod, capable of carrying two long missiles, two 250kg guided glide bombs, or four 125kg WYGP-100 Saehorigi light bombs.

Stealth
No official figures on the SR-12's radar cross section have been published, and no signatures from foreign defense radars are available. Pre-production models, such as those filmed during the July 2019 parade, all carry radar reflector pods under the fuselage to increase their returns for safety in air traffic control and navigation, and possibly to hide their true radar signature from independent measurement. The exact composition or distribution of its radiation-absorbent materials is also not publicly known, though the production-ready units appeared to have a different coating on the wing edges and over some panel seals.

Nevertheless, independent assessments of the SR-12's shape and composite 3D models pieced together from camera and movie footage have turned up few prominent flaws in the RCS-reduction scheme. The design displays very consistent planform alignment and has few clear bumps, curves, or other irregularities which could present radar reflections from the side or beneath.

No independent estimates are available on infrared signature, as the composites used in the wing leading edges and other high-strain areas are not known. If the leading-edge extensions use active cooling, as some speculate, this could dramatically reduce head-on IR signature; on the other hand, if the engines must enter reheat for dogfighting or supersonic flight, this would greatly increase the plane's infrared signature from the rear and heat up the rear fuselage.

Operational service
As of March 2021, low-rate initial production of early-model SR-12s is believed to be well underway. It is estimated that there are four flyable prototypes currently in existence, three of them in a production-ready configuration, and one of the original five lost in a crash. Independent estimates put the number of production-model SR-12s, also designated SR-12G, at twelve airframes.

The Ministry of National Defense announced in 2020 that the SR-12 is on track to reach initial operating capability by 2024; until then, LRIP models will be used in training, endurance testing, and weapon qualification. Given the pace of the program until now, it is likely that further delays will push back IOC even further.

So far, there has been no discussion of exporting the SR-12, even to close allies like Argentstan. The Ministry of National Defense considers the plane's technology and capabilities sensitive, and has also denied observers from Tír Glas and Dayashina access to test airframes. Additionally, given its size and technical complexity, the SR-12 probably comes with a high price tag; the MoND shows no sign of ending production of the cheaper DS-9 and SR-8.

Specifications

General characteristics
Crew: 1
Length: 20.2 m (66 ft 3 in)
Wingspan: 13.8 m (45 ft 3 in)
Height: 5.2 m (17 ft 1 in)
Wing area: 73.5 m2 (791 ft2)
Empty weight: 20,000 kg (44,000 lb)
Loaded weight: 32,000 kg (70,000 lb)
Max. takeoff weight: 38,000 kg (84,000 lb)
Powerplant: 2 × Donghae 89/160 afterburning turbojet
Dry thrust: 89 kN (20,000 lbf) each
Thrust with afterburner: 160 kN (36,000 lbf) each

Performance
Maximum speed: Mach 2+ (est.)
Cruise speed: Mach 0.9 (est.)
Combat radius: 1,200 km (745 miles) on internal fuel, 8 missiles
Ferry range: 4,000 km (2,500 miles) with three external tanks
Service ceiling: 20,000 m (66,000 ft)
Wing loading: 435 kg/m2 (88.5 lb/ft2)
Thrust/weight: 1.02 (full internal fuel)

Armament
Guns: 1× GP-24/6 revolver cannon, 220 rounds
Hardpoints: 8 internal (6 central, 1 per side) and 6 external (3 per wing) with a capacity of 6,000 kg and provisions to carry combinations of:
Missiles:
Air-to-air:
YGG-110 Chŏn Chang
YGG-7 Hwasal
YGG-8 Kal
YGG-5 Dando
Air-to-ground:
SY-53 Pok-u
SY-55 Kkamagwi
YDH-26
YDJ-83 Bidulgi
YDJ-7N
Bombs:
P-1000 bomb family
JP-1000 bomb family
P-500 bomb family (without glide kit)
P-250 bomb family (with or without glide kit)
WYGP-100 Saehorigi


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Gollevainen
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 4th, 2021, 5:47 pm
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Raittinen Ra-41 (speculative name)

There had been rumors of a new highly secretive neuvosto fighter plane but nothing much was known until the revelations of the defector Armas Saarinen who brought quite detailed information about the program. The news were shock to the western military planners. Neuvostoliitto apparently had begun to work with radar avoiding techniques dupped as "Stealth" in the west. The theory was that aircraft could be made invisible to radar by using specialized materials and radar-reflecting angles on the aircraft structure. In the west the theory was deemed unpractical and unworkable for real operational aircraft but apparently the neuvosto planners saw things differently.

Saarinen told that the KST Raittinen was working on a new fighter-bomber for the neuvosto naval aviation which would feature these so called stealth or "Häive" features. It would also feature sophisticated multi-mode radar and other advanced avionics. He provided no photos but a rough sketch which showed twin engine fighter with prominent faceted surfaces. It had large trapezoidal wings and large LERX extensions. Engines were mounted in pods under the wing well seperated and large weapon bay was fitted between them.

After realizing that the secrecy of the plane was lost, Neuvostoliitto made no hard effort to keep the program totally unveiled. During the flight-testing there was few bad quality pictures leaked in the western press apparently intentionally. From these and from the information received from Saarinen, following drawing was published in several aviation journals.

[ img ]
[ img ]
[ img ]

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Coming next for 2021/22: Project 1143 complete redux: Pr1143.4 and 1143.4.2 & Preparations for Pr.61 Remakes



Shipbucket mainsite, aka "The Archive"
Submit your drawings to the archive here
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armyco
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 4th, 2021, 8:48 pm
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Corp wrote: *
...
Cool story with an exhibition ))))))))

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armyco
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 4th, 2021, 8:56 pm
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Ro-Po Max wrote: *
...
The shapes, as for me, are irrational, but very beautifully drawn, especially the bow with the cockpit, which, for unknown reason, very few people succeeded here.

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thegrumpykestrel
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 5th, 2021, 4:50 am
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Location: Middle of Woop Woop
Australasian Fighter Alliance Wedgetail II

The Australasian Fighter Alliance (AFA) Wedgetail II is an Australian/Westralian single-seat, twin-engine, low-observable, multi-role fighter aircraft developed to replace the aging heavy fighters and strike aircraft of the Royal Westralian Air Force and Royal Australian Air Force. The result of the AFA joint program and the Australasian Strategic Partnership Treaty, the Wedgetail was designed to fulfill the roles of maritime strike, interdiction, tactical strike and air defense. Crucially, the aircraft was from the outset intended to carry the Tiger Shark low-observable anti-ship missile, forming a cornerstone of national defense for both countries. First flying in 2013, it wasn’t until early 2020 that the aircraft began to enter regular squadron service with the RAAF and RWAF. Final assembly of the aircraft is conducted in Australia by Boeing Defense Australia as a part of AFA, though significant design work and sub-assembly manufacture is done by the Westralian Aircraft Consortium based out of Pearce. Notably, the program has included the direct involvement of American companies in design and manufacture, deemed necessary by AFA for elements of design, development and manufacture unable to be completed in Australasia; most evident in the export of P&W F119 engines for use in the aircraft. 24 are expected to be built for the RAAF as a replacement for the FA-18F (returning much of the capability lost with the F-111) and 26 for the RWAF (Forming the backbone of the force as part of a hi-lo mix of Wedgetails and 36 F-35As)

[ img ]

[ img ]

Crew: 1
Length: 22.6m
Wingspan: 16.7m
Height: 5.9m

Empty Weight: 20,310kg
Gross Weight: 36,260kg
Max. Takeoff Weight: 44,000kg

Powerplant: 2 x Pratt and Whitney F119-100 Afterburning Turbofan
Thrust: 26,000lbf (116kn) each dry, 35,000lbf (156kn) each with afterburner
Thrust/Weight: 0.87 at Gross weight

Maximum Speed: ~Mach 2, ~Mach 1.4 supercruise
Combat Radius: 800nmi on internal fuel
Ferry Range: 2,800nmi with external tanks
Service Ceiling: ~60,000ft

Armament
- AMRAAM (up to 6)
- AIM-9X (Only on outside pylons just inboard of wingtips)
- Tiger Shark AShM
- JDAM-series, Paveway-series
- SDB
- JSOW


Last edited by thegrumpykestrel on March 5th, 2021, 10:30 am, edited 8 times in total.

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Yqueleden
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 5th, 2021, 6:53 am
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German empire. Heinkel Hütter Hü J-12 Nachteule

This plane is part of the universe of "The Visitor": Between 1940 and 1941 Hitler and the Nazi party leadership are killed. Germany becomes an authoritarian monarchy, and organizes the "Aachen Pact", equivalent to the "Warsaw Pact", which includes approximately the current European Union.


The Heinkel-Hütter J-12 Nachteule (Owl) was a low radar-signal fighter aircraft for the Luftwaffe and Aachen Pact air forces.
Rumors of U.S. development of a stealth fighter (later renamed the F-22) led the Luftwaffe to request a similar aircraft. However, the progress of the MBB J-10 suffer significant delays, and the cost rose dramatically. The Reichsluftfahrtministerium (RLM) feared a repeat of the MBB J-7 Taifun, which was delayed ten years behind the schedule.

As an interim measure, the RLM requested a low-signal aircraft with inferior characteristics to the J-10, but that could make its first flight in three years, and enter service in five. With such tight deadlines was impossible to design a new aircraft, and Heinkel, who had traditionally designed light fighters such as the Hü 312 Drachen or the delta-wing Hü J-1, offered a derivative of the J-5 Dartpfeil, an development of the J-1.

The J-12 Nacthteule, adopted the wing structure of the J-5, but slightly modified to reduce the radar signal. The air intake was moved to the belly of the aircraft in order to fit an "S" intake duct. The J-12 had elements of the J-5, such as the forward cockpit , the electronic and fly-on-wire systems. The landing gear was similar to the J-7 Taifun.

To reduce the radar signal without using expensive absorbing materials, the vertical stabilizer was of composite materials, and the skin had irregular shaped panels. The Nachteule had a small bay for two 350 kg guided bombs and four Iris-L medium-range missiles. It had'n't internal weapons.

The Nachteule could operate in a clean configuration, with internal weapons only, but for lower-risk missions it usually carried external weapons and auxiliary tanks.

The J-12 was commissioned in 2007 and performed the first combat mission in 2011, when the Zion Air Force engaged jihadist enclaves in Somalia. The J-12 was appreciated for its polyvalence and low maintenance requirements, but for certain missions, such as air-to-air combat, was preferred to the more advanced (but expensive) MBB J-10.

[ img ]
Clean configuration.

[ img ]
Heavy configuration.

Greetings

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Zerin
Post subject: Re: Fifth Generation Fighter ChallengePosted: March 5th, 2021, 7:50 am
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Sadly due to irl things I didn't get to finish her. I intended for more views and to show it's armaments, but sadly it is just a standard side view. But I will include some good ol' technobable, history, and the like. Im happy that this is my first submission into a challenge, and look forward to improving my skills in aircraft drawing.

[ img ]

K-55 Titanoboa Initial Production Variant of the Norden Defense Force Air Guard (NDFAG)

Brief Overview/History:
The K-55 Titanoboa was conceptualized by the NDFAG in the early 2010s as part of their Next Generation Aircrafts program. The primary goals of the program was to research, develop, and produce next generation aircrafts that could replace or complement existing frames within the Air Guard and Navy. One of these aircrafts that were selected for production was the K-55 Titanoboa. Designed as a joint venture between the Nihl Aerospace Engineering Cooperative and Omega Aircrafts. The Aircraft was conceptualized as a replacement for the current "High End" 5th Generation fighter currently in service with the FDFAG, the K-30 Anaconda, however it was instead adopted as a complementary fighter to the current fleet of aircrafts as a "Ultra High" end airframe. It is considered globally as the first 5th Gen+ Fighter. It's name "Titanoboa" comes from the deadly massive serpant that hunts in the rainforests of the Liazuputh and Afrikan continents, and follows the Norden Defense Force's naming convention of naming it's fighter aircraft after snakes.

The most distinguishing feature from other 5th Gens is the inclusion of a Modular Multi-Mission Integrated Pod (M3IP) underneath the canopy of the aircraft. The purpose of the M3P was to carry mission specific armament, extra air to air missiles, electronic warfare equipment, or even extra fuel. This significantly increased the amount of weapons the frame could carry, as well as versatility of the aircraft. The Titanoboa was also designed to be capable of carrying drop tanks and stealth armament pods increasing it's range and armament even further. The speed in which the aircraft was conceptualized, designed, prototyped, approved, and produced is also noteworthy however many a skeptical if it can truly bring forth all it has promised. When it flew it's first combat missions in late 2020; it was proven to be one of the most heavily armed and dangerous aircrafts on Gaiea. As of 01FEB2020 30 have been produced with a planned total of 160 aircraft to form 10 squadrons of 16 aircraft to complement the K-30 Anacondas currently in service.


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