Project 748 Transport Submarine
In 1964-1965 the Navy forewent Project 664, and in the following year everything began again. Although it was decided to abandon the project 664, the fleet still needed a commando transport submarine capable discreetly deliver amphibious group in remote areas of the world's oceans. The Fleet again required a transport submarine for the covert delivery of landing party into remote regions of the world ocean. Since August 1965, TSKB-16 began to develop a transport boat under Project 748, at first it was not atomic.
When generating programs of military engineering for the period 1965-1970 the creation of this ship. The task specified "clandestine transportation and amphibious landing on the unfortified coast, and also withdrawing the landing party and tevacuating the wounded back to the Soviet coast or the transfer to other points of the coast of potential enemy. And, in addition boat had to supply with the ammunition and other forms of logistic support the troops in directions remote from their shores." In addition, the boat was required to meet the challenges of the ammunition supply, food and other types of logistics serving "on remote Nations issues".
In all were provided for to assume onboard to 1,200 people landing with ammunition or instead of them to 20 units of wheeled or tracked armament (as the version of load - one strong battalion of marines (i.e. 470 people) with the regular armament, three PT-76 amphibious tanks, two BTR-60 armored carriers and six company mortars with ammunition.
Schematic design began in August 1965, and N. Kiselev was appointed Chief Designer of project 748. After beginning the design the Ministry of Ship Building proposed that the TSKB to additionally work two versions of the boat, one with nucleaer power and the other as a mine layer. On the whole six versions of the preliminary design were studied, but the final examination proposed the fourth version (with nuclear power). The boat was assumed to be in three-parts: three pressure hulls were arranged horizontally inside the flattened outer hull. In the lateral hulls was placed the load, storage batteries, landing and technology, that were being immersed through the large airtight hatchways in the nose section of each hull. There in to nose were provided for two access ramps for the landing in the unfortified coast, which were spread outside (nose in boat it came out as a result flat).
In order to ensure to boat minimum sagging with the approach to the coast it was provided enormous reserve bouyancy - more than 50% displacement! But also sizes also came out - about- 160 meters by 21 meters in the central hull was found all main general ship-based systems, living quarters, the two-shaft power unit (screw propellers they were located in the ring packing). The ship was armed with four 533-mm torpedo tubes (ammunition of 14 Torpedoes or 28 mines), two 57-mm automatic weapons, and also with "Strela-2" (all this for the protection during the debarkation).
But all this ended by anything - project was not affirmed. Submitted by customer eNAV APPLE has not been approved, but the freight landing submarines capable to face the challenges of mine in THE USSR zagraditelâ were continued. Further works were continued on projects for the creation of the universal troop-carrying boats, capable of also carrying large mines.
| Length | 160 m
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| Width | 21 m
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| Displacement | 11.000 m
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| Submersion depth | 300 m
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| Max. speed underwater | 17 knots.
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| Independence | 80 days
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