Hotel-class submarine explained

The Hotel class is the general NATO classification for a type of nuclear-powered ballistic missile submarine that was launched by the Soviet Union around 1959. The Soviet designation was Project 658.

Design

The development of the submarine, designed to carry the D-2 launch system and R-13 missiles, was approved on 26 August 1956. Work on the design began in September 1956, the technical project was completed in the first quarter of 1957.

The duties of the chief designer of Project 658 were originally assigned to the chief engineer of OKB-18, P.Z. Golosovskiy. In February 1958 project management was transferred to I.V. Mikhaylov, who in October 1958 had replaced S.N. Kovalev. From the outset the deputy of the chief designer was I.D. Spasskiy.[1]

The Hotel design was based on the Project 627,[2] the first Soviet nuclear submarines. They were modified by adding the missile compartment from the s. Additionally, the Hotels had small horizontal hydroplanes for better maneuverability and more reliable electro-hydraulic command control surfaces for high-speed underwater operations with reduced noise.

The D-2 launch system on the Hotels placed three R-13 missiles in vertical containers directly behind the sail. The submarine had to be surfaced to launch, but all three missiles could be fired within 12 minutes of surfacing.

Variants

Hotel I

The first Hotel-class submarine,, was laid down on 17 October 1958 and commissioned on 12 November 1960, only to suffer numerous setbacks and accidents. The last of the eight Hotel submarines was launched on April 1, 1962. All of them were built at Severodvinsk State Shipyard 402 (now known as the Northern Machine-Building Enterprise - SEVMASH) in Molotovsk (now Severodvinsk) shipyard[3] Russia.

Hotel II

Beginning in 1961 and ending in 1963, all Hotels but one (K-145) were equipped with the new D-4 launch system, which could launch missiles from a depth of 16m (52feet). The modified submarines received the NATO reporting name Hotel II. They were armed with R-21 (SS-N-5 Serb) missiles, with a range of 1200km (700miles). The installation of the D-4 launching system required some structural changes of the submarine; before launch, the launch tube had to be flooded. The chief designer of the modification was S.N. Kovalev.

Hotel III

From 1969 to 1970, K-145 was modified by Project 701 to test the R-29 missiles, receiving the NATO reporting name Hotel III. It was lengthened to 130 meters and its displacement increased to 5,500 tons surfaced and 6,400 tons submerged. The maximum speed was reduced to on the surface and submerged. Six launchers for R-29 missiles were placed in two compartments, each with three launchers. In 1976 K-145 returned to combat service.

Vessels

Hotel-class - significant dates!#!Shipyard!Laid down!Launched!Commissioned!Status
K-19SEVMASH, Severodvinsk17 October 195811 October 195912 November 1960[4] Decommissioned in 1991 as KS-19 for scrap
K-33/K-549 February 19596 August 196024 December 1960Decommissioned in 1987 for scrap
K-555 August 195918 September 196027 December 1960Decommissioned in 1989 for scrap
K-406 December 195918 June 196127 December 1961Decommissioned in 1987 for scrap
K-165 May 196031 July 196128 December 1961Decommissioned in 1987 for scrap
K-14521 January 196130 May 196231 October 1962Decommissioned in 1989 for scrap
K-14912 April 196120 July 196227 October 1962Decommissioned in 1991 for scrap
K-17811 September 19611 April 19628 December 1962Decommissioned in 1990 for scrap

References

Notes and References

  1. Web site: 658 HOTEL I / II / III- Russian and Soviet Nuclear Forces . 2022-06-12 . nuke.fas.org.
  2. Web site: 658 HOTEL I/II/III. Federation of American Scientists. 28 May 2016.
  3. https://web.archive.org/web/20160306100157/http://russiafile.com/hotel.htm Hotel Class Submarines
  4. Podvodnye Lodki Rossii, Atomnye Pervoye Pokoleniye; Tom IV, Chast 1;1st Defense Ministry Scientific-Research Institute & Rubin Central Design Bureau of Marine Equipment; Sankt peterburg, 1996