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Hood
Post subject: Design Study 363Posted: December 28th, 2010, 4:05 pm
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A little Xmas/ New Year pressie for you all.

Design Study 363 was one of a series of "corvette" studies made during 1963-64 as a study of frigate types. It seems in design to owe much to the earlier DS 352 which was entered into some long-term costings during 1963 alongside the Type 82 and a GP frigate design.
This is very much a thrid-rate ship in RN parlance, basically a basic type suited to one role only and much like the Type 14 of the 1950s.
Diemensions were 320ft (wl) and 37ft beam, displacement 2,075 tons, 20,000shp with two 10,000shp Rushton diesels for 26kts and endurance 4,000nm at 18kts. Armament was one Bofors 75mm L56 gun (300 rounds) with a remote visual sight and one Limbo (90 rounds). Radar was Type 978 with Types 170 and 177 sonars. Crew would have been 10 officers, 30 senior and 120 junior ratings. Eventually these designs led to the Type 19, which in turn was replaced by the Type 21.

[ img ]

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Gollevainen
Post subject: Re: Design Study 363Posted: December 28th, 2010, 4:31 pm
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Nice one. Never heard of it...So it would have been predominatly ASW platform? Or more of a colonial sloop?
Also the Bofors 75mm gun is intresting, haven't heard of it neither (unless its ment to be the 76mm that the Norwegian small craft used)

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graham
Post subject: Re: Design Study 363Posted: December 30th, 2010, 3:51 am
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Great drawing I read some were that 76mm gun was designed for anti MTB work, (I am holidays on other side of the country Australia, from my books so I can't quote which one) I suspect that it would have picked up so 40mm guns for minimum AA work. Also 90 Limbo rounds sounds a lot for one Limbo I seem to remember that the standard load was 15 salvos of 3 rounds so 90 rounds could indicate that two limbos was the staff/design requirement

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klagldsf
Post subject: Re: Design Study 363Posted: December 30th, 2010, 7:13 am
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Such a small funnel on an obviously non-nuclear ship implies diesel propulsion only which in turn implies not all that great a speed, so I'm with Golly in guessing colonial sloop.


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Portsmouth Bill
Post subject: Re: Design Study 363Posted: December 30th, 2010, 8:55 am
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Yes, V16 Rushton diesels were proposed, and if I recall correctly, around 26 knots full speed. I don't have it to hand but this design features in Rebuilding The Royal Navy, where I'm also delving at present. I beleive it was one of a series of low cost escorts from around 1964, but never adopted. Well, Hood knows my opinion already - we agree to disagree :P But I'll give it marks for efficency of purpose - a bit like a type 14 on steroids.


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Novice
Post subject: Re: Design Study 363Posted: December 30th, 2010, 9:50 pm
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Very nice Hood.
A small nit-pick is the fact that four Corvus decoy launchers were supposed to be carried, at the four corners of the bridge structure. Also the Type 182 torpedo-decoy had a much more substantial lifting gear than drwn here (on the stern).

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Hood
Post subject: Re: Design Study 363Posted: December 31st, 2010, 7:37 pm
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Thanks Novice, I knew it has four Corvus but didn't know where there were supposed to be located.
Most of the Type 182 gear is there in the correct position but just lacking some details. I'll work on it further no doubt.
The Admiralty couldn't really understand how a ship nearly identical to the Blackwoods was heavier and more expensive. It had more command spaces, better comms equipment and had air-con throughout the whole ship. Even so it seemed a poor cost option.
The Bofors gun was used as the RN at the time had no auto gun in prospect, it was pre 4.5in Mk8. I guess a couple of 20mm would have been added.

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Hood
Post subject: Re: Design Study 363Posted: January 2nd, 2011, 4:56 pm
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Drawing above now modified in respect of Corvus launchers.

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erik_t
Post subject: Re: Design Study 363Posted: January 3rd, 2011, 2:32 am
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Cute little guy. Pilot house is amazingly dinky. Anchor seems kinda huge?


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Thiel
Post subject: Re: Design Study 363Posted: January 3rd, 2011, 2:33 am
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Yeah, if that thing snags, you're not going anywhere.

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