OK

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Winged manned space shuttle, originally conceived in 1972 to succeed the Soyuz and Progress spacecraft to shuttle supplies and crews to the MKBS-2 military space base. Development was assigned to Chelomei's OKB-52, and it was originally to be launched by the N1-MOK as part of a reusable space system. When the N1 and MKBS-2 were cancelled in 1974, development continued as the LKS, but it was now to be boosted by an upgraded Chelomei Proton launch vehicle. This in turn was cancelled in 1983, and Glushko at OKB-1 designed a successor OK for launch on the Zenit vehicle. Development was then handed over to the Molniya bureau, which was developing the duplicative MAKS system for the Soviet Air Force. Molniya studied several OK-M designs, which were apparently dropped in favor of MAKS.

Status: Study 1972.

Subtopics

LKS Russian manned spaceplane. Mock-up stage when cancelled in 1983. The LKS was a Chelomei design for a reusable manned winged spacecraft, similar to the later European Hermes spaceplane.

OK-M Russian manned spaceplane. Study 1984. 1980's design for a spaceplane, smaller than Buran, to replace Soyuz and Progress spacecraft for space station crew rotation/replenishment tasks.

OK-M1 Russian manned spaceplane. Study 1984. The OK-M1 manned spaceplane was designed by NPO Molniya as a follow-on to the OK-M of NPO Energia. The OK-M1 was an integrated part of a unique launch vehicle, the MMKS reusable multi-module space system.

OK-M2 Russian manned spaceplane. Study 1984. The OK-M2 was a manned spaceplane, a straight delta wing joined to a broad fuselage with an upturned nose.

1983 September - .

State commission reviews LKS spaceplane - . Nation: Russia. Related Persons: Chelomei. Spacecraft Bus: OK. Spacecraft: LKS.
A State Commission reviewed Chelomei's LKS spaceplane design on behalf of Minister of Defence V M Shabanov. Shabanov was completely opposed to the LKS, and had staged the commission for the express purpose of burying Chelomei's proposal once and for all. Further development of the LKS was stopped.

1991 March - .

Saboteurs destroy LKS spaceplane mock-up - . Nation: Russia. Spacecraft Bus: OK. Spacecraft: LKS. A group of unidentified saboteurs (possibly KGB) broke into the premises of NPO Mashinostroyeniye and destroyed the mock-up..

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