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odysseus1980
Post subject: Re: Hellenic Kingdom : RevisitedPosted: October 20th, 2018, 5:40 pm
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Joined: November 8th, 2010, 8:53 am
Location: Athens,Hellenic Kingdom
The HSY-102 light frigate was designed to replace the previous Ancient Admiral/General Class of light frigates which had roots in a mid 1950's domestic destroyer escort. In total 18 ships built from 3 shipyards plus 4 under license in Cyprus, in two sub-classes with small differences in armament and electronics. First HSY-102 commissioned in 1992 and last in 2004.

Dimensions : 102.7m X 12.0 m X 3.8m
Propulsion : CODOG, 2 X MTU 12V656TB81 (5640 hp) + 2 X Rolls Royce Spey SM1A (37,540 hp)
Speed : 32 kn max

Armament (as built)

1 X 76mm OTO Melara 76/62 Combatto
2 X 2 X 35mm Oerlikon GDM-A (with AHEAD rounds)
2 X 14.5mm Y1965 HMG
8 X HSSM-2 Turbo Exocet anti-ship missiles
2 X 3 Mk32 torpedo tubes
1 X Crotale Naval (in 1st batch of 10 hulls) and 1 X ARIS VI missile CIWS (in second batch of 8 hulls for RHN and the Cypriot ones).

The HSY-102 was also the first Hellenic Navy warship with Rolls Royce Spey gas turbines.

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odysseus1980
Post subject: Re: Hellenic Kingdom : RevisitedPosted: October 30th, 2018, 8:48 am
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Location: Athens,Hellenic Kingdom
Time for a submarine:

The HSY-70 submarine or Amphitrite Class was designed in 1970's with some french assistance based loosely on the Rubis hull but with diesel electric propulsion instead of nuclear and several features of Agosta submarines. So, its appearance is that of a fatter and longer Agosta. They featured french sonar systems, six 550 mm torpedo tubes with pneumatic automatic reload system (shared with Agosta), 24 weapons capacity - torpedoes and Sub-Turbo Exocet missiles - integrated to a domestic designed fire control system.

The HSY-70 has also the maximum possible battery capacity for its size and twin electric motors -one small cruising long range motor and a large powerful motor for higher speed- following again french practice. Also she was specially designed for being very quiet and very difficult to detect, especially in low speed. Drawing is the early HSY-70, later built had more hydrodynamic bow and several improvements.

Specifications

Displacement (tn): 2060/2570
Dimensions (m): 72.6 x 7.6 x 6.4
Machinery : 2 x ADC/GM 12-630SD diesels, 2,400 hp each, 2 electric motors (one 64 hp and one 8,500 hp)
Speed : Low speed 4 kn, max speed officially classified but said to be ~22.5 kn for the early hull and ~24 kn for the later hull
Armament : 6 x 550mm torpedo tubes, 24 weapons (usually 18 torpedoes and 6 missiles) or 48 mines
Electronics (early): DSUV-22, DUUA-2B, DUUX-5, DSUV-62 towed array sonars, domestic unspecified radar and ECM
Depth : 300m operational, test depth ~500m


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Last edited by odysseus1980 on November 15th, 2018, 5:15 pm, edited 2 times in total.

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eswube
Post subject: Re: Hellenic Kingdom : RevisitedPosted: October 30th, 2018, 8:29 pm
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Joined: June 15th, 2011, 8:31 am
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Nice additions! :)

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My very neglected Deviantart page


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odysseus1980
Post subject: Re: Hellenic Kingdom : RevisitedPosted: November 15th, 2018, 5:13 pm
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Joined: November 8th, 2010, 8:53 am
Location: Athens,Hellenic Kingdom
Hermes class AGI

These ELINT ships built on merchant hull in 1990's to support Hellenic Navy operations. 4 built, one for Ionian, Aegean and Black Sea, plus one for East Mediterranean. Latter flies the Cypriot flag and manned by mixed Cypriots and mainland Hellenes. Distinctive features are the 3 large domes which contains the radars and the heavy shelf-defense armament, like the old Soviet purpose built spy ships. Electronic equipment has updated several times. Still need underwater hull and naming.

Length : 133,2 m
Beam : 20,8 m
Draft : 4.9 m
Displacement : 6.200 tn
Propulsion : 4 diesel engines, 24.000 total
Max speed : classified
Electronic equipment : classified
Armament : 1 x OTO Melar 76mm, 2 X CIWS 25mm, 1 x SADRAL, 2 x 30mm RWS M791 and 16 X ARIS VL (added in 2016 refit)

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KonPtol
Post subject: Re: Hellenic Kingdom : RevisitedPosted: November 15th, 2018, 8:21 pm
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Joined: November 18th, 2014, 6:06 pm
Quite impressive!!!


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