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Soviet Navy Project 748 submarine landing ship

Triton

Donald McKelvy
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In August 1965 TsKB-16, later Rubin, was directed to respond to the Tactical-Technical Elements (TTE) requirement for a large diesel-electric submarine LST designated Project 748. The design bureau, realizing the limitations of conventional propulsion for this submarine's missions, additionally initiated nuclear-propelled variants.

Six variants of Project 748 were developed with surface displacements from 8,000 to 11,000 tons. Most variants had three separate, cylindrical pressure hulls side-by-side, encased in a single outer hull. The first variant met the basic TTE; the second variant carried a larger number of PT-76 amphibious tanks; the third variant had VAU-6 auxiliary nuclear power plants; the fourth variant had two OK-300 reactor plants generating 30,000 horsepower; the fifth variant had the VAU-6 system with a single pressure hull; and in the sixth variant the OK-300 plant was replaced by four VAU-6 units.

This large submarine could carry up to 20 amphibious tanks and BTR-60P armored personnel carriers, and up to 470 troops. In addition to a torpedo armament of four bow 21-inch torpedo tubes with 18 to 20 torpedoes, the submarine was to be fitted with anti-aircraft guns and surface-to-air missiles. And, of course, the submarine could serve as a minelayer.

TsKB-16 recommended proceeding with the fourth (nuclear-propelled) variant. Still, construction was not initiated because the Navy, Ministry of Shipbuilding Industry, and General Staff of the Armed Forces ordered a review of the features of Projects 632, 648, 664, and 748 in an effort to develop a "ubiquitous" or all-capable nuclear submarine. TsKB-16 (now named Volna) was directed to develop a preliminary design for the submarine designated Project 717.

Sources:

"The First Soviet Giants" by Norman Polmar published in Undersea Warfare magazine:
http://www.navy.mil/navydata/cno/n87/usw/issue_13/soviets_giants.html

Cold War Submarines: The Design and Construction of U.S. and Soviet Submarines by Norman Polmar and Kenneth J Moore, Brassy's, Inc., 2004
 

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hs1216

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Is that a hanger for re-con planes attached to the sail?
 

TomS

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Per Norman's article in the original post, they were La-5 fighters.


I assume they were there to protect the beachhead. There doesn't seem to have been any provision for recovering the aircraft, so they probably would only fly one sortie and hope to find a field flat enough to land in.
 

Abraham Gubler

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GTX said:
Are there any dimensions for these monsters?

Dimensions are in Norman Polmar's book "Cold War Submarines". The Project 621 submarine LST of 1948 was 'only' 5,950 tons on the surface. And it was designed to carry a full battalion. The later Project 748 was 9,800 tons and 159m long with diesel power, more for the nuclear versions.
 

Deino

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A few more images, however they say this is Project 717 !??

From the link: http://dsjunshi.net/forum.php?mod=viewthread&tid=819567&extra=page%3D1

毛子黑计划,717项目运兵核潜艇。1967年提出概念,1971年完成详细设计,潜艇长190米,排水量18000吨,最大潜深300米,最大水下速度18节。潜艇采用独特的三壳体结构,中央艇身容纳6枚533mm鱼雷、两座30mm机炮、兵员和两座反应堆,两侧艇身可容纳20辆两栖坦克或装甲车。可惜1977年这个登陆战利器被终结。
=

Russian black program, 717 nuclear submarine project personnel carriers. 1967 proposed concept, detailed design was completed in 1971, the submarine is 190 meters long, displacement of 18000 tonnes, maximum diving depth of 300 meters, maximum underwater speed of 18 knots. Submarine uses a unique three-shell structure, central hull to accommodate 6 533mm torpedo, two 30mm cannons, troops and two reactors, flanked by boats can accommodate up to 20 amphibious tanks or armoured vehicles. Unfortunately, in 1977 the landings weapon was the end.
 

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pedrospe

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Nice pictures,thanks alot Deino.




best regards


Pedro
 
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