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Mission Name: STS-1 (1)                                                   

COLUMBIA (1)

Pad 39-A (13)

1st Shuttle mission

1st Flight OV-102

Crew:

John W. Young, Commander

Robert L. Crippen, Pilot

Backup Crew:

Joseph H. Engle, Commander

Richard H. Truly, Pilot

Milestones:

03/24/79 - Arrival from Dryden

03/25/79 - Move to OPF-1 (610 days)

11/24/80 - Move to VAB-3 (35 days)

12/29/80 - Move to PAD-39A (105 days)

02/20/81 - Flight Readiness Firing (FRF)

04/12/81 - Launch

04/14/81 - Landing

04/28/81 - Return to KSC (14 days)

Payload:

DFI, ACIP - Developmental Flight Instrumentation pallet containing equipment for recording temperatures, pressures and acceleration levels at various points on the vehicle.

Mission Objectives:

Demonstrate safe launch into orbit and safe return of the orbiter and crew.

Verify the combined performance of the entire shuttle vehicle - orbiter,

solid rocket boosters and external tank.

Launch:

April 12, 1981, 7:00:03 a.m, EST. Launch April 10 postponed due to timing skew in orbiter's general purpose computer system.

Backup flight software failed to synchronize with primary avionics software system. Countdown proceeded on schedule April 12. First

24 Shuttle liftoffs - STS-1 through 61-C - were from Pad 39-A.

Launch Weight: 219,258 lbs.

Orbit:

Altitude: 166nm

Inclination: 40.3 degrees

Orbits: 36

Duration: 2 Days, 6 hours, 20 min, 53 seconds

Distance: 1,074,567 miles

Hardware:

SRB:

ET : SWT-1

MLP :

SSME-1: SN-2007

SSME-2: SN-2006

SSME-3: SN-2005

Landing:

April 14, 1981, 10:20:57 a.m. PST, Runway 23, Edwards Air Force Base, Calif. Rollout distance: 8,993 feet. Rollout time: 60 seconds. Orbiter

returned to KSC April 28, 1981. Landing Weight: 194,184 lbs.

Mission Highlights:

Primary mission objectives of the maiden flight were to check out the overall Shuttle system, accomplish a safe ascent into orbit and

to return to Earth for a safe landing. All of these objectives were met successfully and the Shuttle's worthiness as a space vehicle was

verified.

Major systems tested successfully on first flight of Space Transportation System. Orbiter sustained tile damage on launch and

from overpressure wave created by solid rocket boosters. Subsequent modifications to water sound suppression system eliminated

problem. Sixteen tiles lost and 148 damaged.

The only payload carried on the mission was a Development Flight Instrumentation (DFI) package which contained sensors and measuring

devices to record orbiter performance and the stresses that occurred during launch, ascent, orbital flight, descent and landing.

Post-flight inspection of the Columbia revealed that an overpressure wave which occurred when the SRB ignited resulted in the loss of 16

heat shield tiles and damage to 148 others. In all other respects, however, Columbia came through the flight with flying colors, and it

was to fly the next four Shuttle missions.

Columbia was returned to Kennedy Space Center from California on

April 28 atop its 747 carrier aircraft.