RESULTS OF THE
FIRST UNITED STATES
MANNED SUB-ORBITAL SPACE FLIGHT

Tuesday, February 13, 2001
MANNED SPACECRAFT CENTER

NATIONAL AERONAUTICS
AND SPACE ADMINISTRATION

ASTRONAUT BACKGROUND DATA
The astronaut for this mission was Test Dummy. This would have been Astronaut Dummy's first space flight.

Age Height Weight Flight Experience
43 73 in 262 lb. 1502 hours

LAUNCH AND ASCENT PHASE
The launch of the Redstone booster and Mercury spacecraft occurred at 1:40:01 PM Eastern Standard Time. The Mission Elapsed Time (MET) was 00:01:17. The mission did not last as long as planned for reasons outlined later in this report.

At 00:00:23 MET, the Redstone's engine started to develop insufficient thrust. The cause was traced to a leak in the LOX line to the engine.

Mission Abort
Astronaut Dummy initiated a successful abort sequence at 00:00:35 MET, at an altitude of 0.77 nautical miles. At the time of the abort, the spacecraft was 0.04 nautical miles downrange and had a total velocity of 252.0 feet/second.

The maximum longitudinal acceleration during ascent was 12.3 G.

SUB-ORBITAL COAST PHASE
The spacecraft's mission event Programmer operated nominally during the flight.

The spacecraft telemetry systems operated as expected, providing the ground stations with reliable information throughout the flight.

Electrical Systems
The spacecraft's Electrical Systems operated perfectly. The following electrical readings are based on latest telemetry received from the spacecraft:

Main DC Bus Isolated Squib DC Bus ASCS AC Bus Fans AC Bus Amps
24.0 VDC 22.0 VDC 118.0 VAC 125.0 VAC 27.38 DC amps

The average power consumption for the spacecraft was 27.38 amps.

Attitude Control Systems
Both Reaction Control System (RCS) A and B were completely operational during the mission.

The Attitude Control System fuel quantities, which are based on telemetry received prior to fuel dump, are 23.1 lb. left in the Manual fuel tank and 30.79 lb. left in the Automatic fuel tank.

Environmental Control System
The final Environmental Control System telemetry indicated an oxygen quantity of 3.95 lb. left in the primary tank and 3.96 lb. in the secondary tank. These O2 quantities are based on telemetry received prior to snorkel deployment.

The quantity of water left in the coolant tank was 38.87 lb. The last cabin temperature reading from the spacecraft was 79.92 °F. The highest temperature was recorded at 00:01:16 MET , at which point the interior of the spacecraft reached a temperature of 79.92 °F.

The last cabin humidity reading from the spacecraft was 40.0%. The lowest cabin humidity during the flight was 40.0%. at 00:01:16 MET.

ASTRONAUT TASKS
Due to the aborted mission, no scheduled tasks were performed.

RETROGRADE AND REENTRY PHASE
The retrograde sequence timer was set to its launch value of 00:04:45 MET. No retrograde rockets were ignited. Retrograde package jettison occurred at 00:00:38 MET. This event was triggered, on schedule, by the event Programmer.

The .05G maneuver was initiated at 00:00:54 MET. It was triggered by the event Programmer, when .05G longitudinal acceleration was sensed.

DESCENT AND LANDING PHASE
Drogue parachute deployment was triggered, on schedule, by the event Programmer. Snorkel deployment was triggered, on schedule, by the event Programmer.

The Main parachute was deployed, on schedule, by the event Programmer.

Landing Bag deployment occurred at 00:01:15 MET, at an altitude of 1.5 nautical miles. The Landing Bag was deployed, on schedule, by the event Programmer. For an as yet undetermined reason, there was no Rescue Package deployment upon impact.

Event MET Altitude
Drogue Chute Deploy 00:00:54 1.93 NM
Snorkel Deploy 00:00:54 1.93 NM
Main Chute Deploy 00:01:05 1.66 NM
Landing Bag Deploy 00:01:15 1.5 NM
Rescue Aids Deploy n/a n/a

The maximum positive G loads during final descent was 7.2 G; maximum negative G load was -1.0 G.