Encyclopedia Astronautica
Mercury MR-6


Crew: Slayton. Planned Mercury suborbital flight. Cancelled July 1961; delays in Redstone flights meant Atlas orbital flights were imminent.

Slayton would probably have flown the fourth manned suborbital Mercury. But after the Russians began orbiting cosmonauts, NASA cancelled further suborbital flights. The MR-6 mission was cancelled by NASA administrator James Webb at the beginning of July, 1961.

First Launch: 1961 Autumn.

More... - Chronology...


Associated People
  • Slayton Slayton, Donald Kent 'Deke' (1924-1993) American test pilot astronaut. Slated to fly third Mercury mission, grounded due to a medical issue and became astronaut commander, assigning crews for lunar landings. Later finally flew on Apollo (ASTP). More...

See also
Associated Programs
  • Mercury Mercury was America's first man-in-space project. Setting the precedent for the later Gemini, Apollo, and Shuttle programs, any capsule configuration proposed by the contractors was acceptable as long as it was the one NASA's Langley facility, and in particular, Max Faget, had developed. McDonnell, at that time a renegade contractor of innovative Navy fighters that had a history of problems in service, received the contract. The capsule had to be as small as possible to match the payload capability of America's first ICBM, the Atlas, which would be used for orbital missions. The resulting design was less than a third of the weight of the Russian Vostok spacecraft, and more limited as a result. More...

Mercury MR-6 Chronology


1961 July 13 - .
  • Mercury MR-6 booster was static tested - . Nation: USA. Program: Mercury. Flight: Mercury MR-6. Summary: The Redstone launch vehicle designated for the Mercury-Redstone 6 (MR-6) mission was static tested at the Marshall Space Flight Center to ensure satisfactory operation of the turbopump assembly..

1961 July 13 - . LV Family: Redstone. Launch Vehicle: Redstone MRLV.
  • Mercury MR-6 static engine test - . Nation: USA. Program: Mercury. Flight: Mercury MR-6. Summary: Mercury-Redstone 6 was static tested for 30 seconds at Marshall Space Flight Center to ensure satisfactory operation of the turbopump assembly..

1961 Autumn - . LV Family: Redstone. Launch Vehicle: Redstone MRLV. LV Configuration: Redstone MRLV-6.
  • Mercury MR-6 (cancelled) - . Crew: Slayton. Payload: Mercury SC16. Nation: USA. Related Persons: Webb; Slayton. Program: Mercury. Flight: Mercury MR-6. Spacecraft: Mercury. Summary: After the Russians began orbiting cosmonauts, NASA cancelled further suborbital flights. The MR-6 mission was cancelled by NASA administrator James Webb at the beginning of July, 1961..

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