Mercury MA-12 (original) (raw)

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Mercury MA-12

Part of Mercury

Mercury Atlas 5
Credit: NASA

Planned fourth one-day Mercury flight. Cancelled mid-1962 in order to move on to Gemini.

Launched: By the end of 1963. Number crew: 1 .

Final planned flight of four one-day duration Mercury capsules manufactured. The mission was to have taken place by the end of 1963. This flight was scheduled until mid-1962, when it was quietly removed from the schedules. Delays in Mercury and budget problems resulted in NASA management's decision to stop further planning for the last two one-day flights and move on to Gemini as quickly as possible.

More at: Mercury MA-12.

People: Schirra. Spacecraft: Mercury.

1961 July 27-28 - .

Advanced Mercury concepts - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12. Spacecraft: Gemini, Mercury Mark I.
After the 2-man space concept (later designated Project Gemini) was introduced in May 1961, a briefing between McDonnell and NASA personnel was held on the matter. As a result of this meeting, space flight design effort was concentrated on the 18-orbit 1-man Mercury and on a 2-man spacecraft capable of advanced missions.

1961 October 25 - .

NASA Headquarters officially approved the Mercury extended range or 1-day mission program. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury. Four Mercury spacecraft were to be modified to the Mercury One Day Mission (MODM) configuration..

1962 January - .

Three potential recovery areas were recommended for the Mercury extended range or 1-day mission. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury. These were: Grand Turk, Midway Island, and the Japanese-Philippine Island area..

1962 January - .

Aerial drop tests planned for the Mercury 1-day mission. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury, Mercury Parachute.
Twenty spacecraft aerial drop tests were planned for the Mercury extended range or 1-day mission. One of the prime objectives was to determine if the 63-foot ringsail main recovery parachute met all Mercury mission weight requirements. Tests were scheduled to be conducted at El Centro, California, and all tests would be land drops. This test program was designated Project Reef.

1962 March - .

PERT system for Mercury. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury.
The PERT (Program Evaluation and Review Technique) reporting system became operational on an experimental basis for Mercury. The first PERT report on the Mercury 1-day mission schedule and cost analysis was issued by the Manned Spacecraft Center on April 26, 1962.

1962 April - .

Development of an advanced Mercury suit started. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft Bus: Mark IV Model 3 Type I. Spacecraft: Mercury Space Suit.
Development of an advanced state-of-the-art pressure suit and helmet was started. This action was taken in preparation for the Mercury extended range or 1-day mission program. The objectives were aimed at improvements in unpressurized suit comfort, suit ventilation, pressure suit mobility, electrically heated helmet visor with additional light attenuation features, and the fabrication of a mechanical visor seal mechanism.

1962 June 26 - .

Mercury Project Reef - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury, Mercury Parachute.
Project Reef, an airdrop program to evaluate the Mercury 63-foot ringsail main parachute's capability to support the higher spacecraft weight for the extended range or 1-day mission was completed. Tests indicated that the parachute qualified to support the mission.

1962 June 29 - .

Changes to fuel tank for the Mercury 1-day mission. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury. Engineering was completed for the spacecraft reaction control system reserve fuel tank and related hardware in support of the Mercury extended range or 1-day mission..

1962 August - .

The first edition of the map for the Mercury 1-day mission was published. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury.

1962 August 8 - .

Mercury Project Orbit - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury. Spacecraft 9 (redesignated 9A) was phased into the Project Orbit program in preparation for the Mercury extended range or 1-day mission..

1962 August 11 - .

Mercury spacecraft reaction control system test was completed. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury. Data compiled from this test was used to evaluate the thermal and thruster configuration of the Mercury extended range or 1-day mission spacecraft..

1962 August-September - .

Mercury spacecraft configuration changes for a one-day manned orbital mission. - . Nation: USA. Flight: Mercury MA-10, Mercury MA-11, Mercury MA-12, Mercury MA-9. Spacecraft: Mercury. Negotiations were completed with McDonnell for spacecraft configuration changes to support the Mercury 1-day manned orbital mission. The design engineering inspection, when the necessary modifications were listed, was held on June 7, 1962..

By the end of 1963 - . LV Family: Atlas. Launch Vehicle: Atlas D.

Mercury MA-12 (cancelled) - . Crew: Schirra. Payload: Mercury SC17. Nation: USA. Related Persons: Schirra. Flight: Mercury MA-12. Spacecraft: Mercury.
From October 25, 1961 until April 1962 NASA's Mercury program plan included four one-day flights in 1963. By October 1962 the decision had been quietly taken to limit the long-duration flights to only MA-9 and MA-10. MA-10 was fnally cancelled in turn after the successful MA-9 mission.

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