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# sm479 Bor-4 Space Plane

8.5 x 7.5 exclusive hand made model of famous Soviet space plane Bor-4.There is an emblem of Gromov`s Flight Research Test Center LII on front of Bor-4.Detailed and very sharp model. Price and availability please check by e-mail or call.Details on Bor-4 are below: In 1973 the VPK initiated the BOR program to accomplish research on a space glider. In order to investigate the hypersonic aerodynamic characteristics and heat shield materials of the manned Spiral OS lifting body, 1:3 and 1:2 scale models of the OS were to be built. Unlike the full-scale model, these were had fixed wings and were designated BOR (unpiloted orbital rocketplane). BOR-1, -2, and -3 were increasingly sophisticated models of the configuration, flown on suborbital trajectories. After the cancellation of Spiral in favour of the Buran, BOR-4 subscale spaceplanes were used to test heat shield materials developed for Buran. Certain essential tests of these heat shield materials could not be done in the lab. These included interaction with the plasma sheath during re-entry, chemical disassociation effects, etc. The BOR-4 was clad in 118 tiles of the type developed for Buran as well as carbon-carbon nose cap and leading edge. These BOR-4 unmanned orbiters were equipped with braking engines. After a circuit of the earth, the spacecraft would deorbit, perform a gliding re-entry, followed by parachute deployment, splashdown in the ocean, and recovery by Soviet naval forces. BOR-4 flew four successful test flights at speeds of from Mach 3 to 25 and altitudes of 30 to 100 km. These test flights confirmed the physical, chemical, and catalytic processes that operated on the selected heat shield materials in the re-entry plasma. BOR-4 also provided important data on the acoustic environment during launch and re-entry. Compared to the Spiral MiG 105-11 EPOS configuration, the BOR-4 had a flattened, wider body with a much smaller vertical stabiliser. The cruise-back turbojet of the 105-11 seems to have been eliminated, and the canted stabiliser tips were cut off at the Mach angle, a MiG trademark.
 # sm479            Bor-4 Space Plane 1
 # sm479            Bor-4 Space Plane 2
 # sm479            Bor-4 Space Plane 3
 # sm479            Bor-4 Space Plane 4

This product was added to our catalog on Thursday 24 July, 2003.