Encyclopedia Astronautica
BOR-5



bor5rig.jpg
BOR-5 after flight
BOR-5 in handling rig after flight
Credit: from Semenov, et. al., Buran, 1995.
Russian spaceplane. 2 launches, 1983.07.04 (BOR-5 Flight 1) and 1984.06.06 (BOR-5 Flight 6). The aerodynamic characteristics of Buran at hypersonic speeds were validated by the BOR-5 1:8 sub-scale model of Buran.

The BOR-5 was boosted on sub-orbital trajectories to altitudes of 100 km and velocities of from 4,000 to 7,300 m/s. These proved the handling characteristics, aerodynamic moment, and control effectiveness from Mach 1.5 to Mach 17.5, at Reynolds numbers of from 1.05 to 2.1 and angles of attack from 15 to 40 degrees. They also allowed study of flow separation at the fuselage surface and thermodynamic characteristics of the design. Final results indicated a lift-to-drag ratio of 1.3 at hypersonic speed, 5.0 at Mach 2, and 5.6 at subsonic speed. Typical trajectory: ascent to 120 km; pitch down to drive model in atmosphere at 45 degree at Mach 18.5. None were reflown but at least 4 were recovered.

Gross mass: 1,400 kg (3,000 lb).
First Launch: 1983.07.04.
Last Launch: 1984.06.06.
Number: 2 .

More... - Chronology...


Associated Countries
See also
  • Kosmos 3 In 1961 Isayev and Reshetnev developed the Voskhod space launch system on the basis of the R-14 IRBM. The initial version of the two stage rocket was designated Kosmos-1. The first 'Voskhod' launch complex was at Baikonur, a modification of one of the pads at the R-16 ICBM launch complex 41. More...
  • Russian Rocketplanes The story of rocketplanes and spaceplanes in the Soviet Union was one of constant setbacks due to internal politics, constant struggle with little result. More...

Associated Launch Vehicles
  • Kosmos 3 Russian orbital launch vehicle. In 1961 Isayev and Reshetnev developed the Voskhod space launch system on the basis of the R-14 IRBM. The initial version of the two stage rocket was designated Kosmos-1. The first 'Voskhod' launch complex was at Baikonur, a modification of one of the pads at the R-16 ICBM launch complex 41. More...
  • K65M-RB Russian orbital launch vehicle. Two stage vehicle for suborbital tests consisting of 1 x R-14 + 1 x S3M. More...

Associated Manufacturers and Agencies
  • Molniya Russian manufacturer of rockets and spacecraft. Molniya Design Bureau, Russia. More...

Associated Programs
  • Buran The Energia-Buran Reusable Space System (MKS) had its origins in NPO Energia studies of 1974 to 1975 for a 'Space Rocket Complex Program'. More...

Bibliography
  • Matthews, Henry, The Secret Story of the Soviet Space Shuttle, X-Planes Book 1, Beirut, Lebanon, 1994.
  • Semenov, Yu P, Lozino-Lozinsky, et. al., Mnogorazoviy orbitalniy korabl 'Buran', Mashinostroenne, Moscow, 1995.

Associated Launch Sites
  • Kapustin Yar Russia's first missile test range and used for satellite launches of smaller Kosmos vehicles. V-2's launched from here in 1946 were the first ballistic missiles fired on Soviet territory. It was greatly expanded as the test site for innumerable Soviet intermediate and short range missile projects in the 1950's.. Kapustin Year was also headquarters of the first operational R-1/R-2 units, 1950-1953, and later a base for 12 operational R-14 missile launchers. Kapustin Yar was known to have been used for over 3519 major launches from 1946 to 2007. More...

BOR-5 Chronology


1983 July 4 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar LC107/1. Launch Pad: LC107/pad?. LV Family: Kosmos 3. Launch Vehicle: K65M-RB.
  • BOR-5 Flight 1 - . Payload: BOR-5. Nation: USSR. Program: Buran. Class: Manned. Type: Manned spaceplane. Spacecraft: BOR-5. Decay Date: 1983-07-04 . Apogee: 120 km (70 mi). Summary: Suborbital test of 1/8 scale model of Buran. Typical trajectory: ascent to 120 km; pitch down to drive model in atmosphere at 45 degree at Mach 18.5. None were reflown but at least 4 were recovered..

1984 June 6 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar LC107/1. Launch Pad: LC107/pad?. LV Family: Kosmos 3. Launch Vehicle: K65M-RB.
  • BOR-5 Flight 2 - . Payload: BOR-5. Mass: 1,400 kg (3,000 lb). Nation: USSR. Program: Buran. Class: Manned. Type: Manned spaceplane. Spacecraft: BOR-5. Decay Date: 1983-07-04 . Apogee: 120 km (70 mi). Summary: Suborbital test of 1/8 scale model of Buran. Typical trajectory: ascent to 120 km; pitch down to drive model in atmosphere at 45 degree at Mach 18.5. None were reflown but at least 4 were recovered..

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