| Mission 1 |
| Crew: 2 | CDR - John W. Young (EV-1) |
| Plt - Robert L. Crippen | |
| Launch | 12 April 1981 @ 7:00:03.983 am EST |
| Orbital incl: | 40.35 |
| Max alt: | 272.0 km. |
| Orbits: | 36 |
| Dur: | 2:06:21:47 |
| Landing: | 14 April 1981 @ 1021:51 PST |
| Launch Window: | 6 hrs., 36 min. ( 7 am - 1:36 pm) |
| TAL Sites: | Rota, Spain (Eject up to T+2 min) |
| AOA site: | White Sands Missle Range, NM |
| Primary landing site: | Edwards AFB, CA |
| Landing Speed: | 183 knots (210 mph) |
| Landing rollout: | 8,993' from main gear touchdown |
| Vehicle weight @ liftoff: | c. 4,457,111 lbs. |
| Orbiter weight @ liftoff: | c. 219,258 lbs. |
| Orbiter weight @ landing: | c. 195,472 lbs. |
| Cargo mass approx.: | 10,823 lbs. |
| Special mission kits: | mid-dec water tank, teleprinter, EMU's 1002 & 1003, a food warmer, and HP-41C reprogrammable calculator (STS-1 thru 8). |
| Development Flight Instrumentation (DFI) | 9,290 lbs.(Payload Bay Mounted) |
| Passive Optical Sample Assembly (POSA) | N/A |
| OEX (Orbiter Experiments Program): | Aerodynamic Coefficient Identification Package (ACIP) |
| Infrared Imagery of Shuttle during reentry from C-141 Kuiper Obs. - NASA #714 |
| SSME's: | 2007 (1), 2006 (2), 2005 (3) Liftoff @ 100%, same after throttle-up. |
| OMS Pods/Engines: | LP-02/201 & RP-02/101 |
| ET: | ET-01 (HWT-01) |
| SRB's: | SRM-01 Booster set successfully recovered. |
| Left - 1A | Right - 1B | |||
| New | 006 | Fwd | 009 | New |
| New | 046 | Cyl | 075 | New |
| New | 061 | Cyl | 076 | New |
| New | 060 | Cyl | 068 | New |
| New | 062 | Cyl | 069 | New |
| New | 058 | Cyl | 041 | New |
| New | 067 | Cyl | 066 | New |
| New | 011 | Att | 012 | New |
| New | 019 | Stf | 020 | New |
| New | 021 | Stf | 022 | New |
| New | 099 | Aft | 010 | New |
| 8 March 1979 | OV-102 rollout ceremony at Rockwell Plant, Palmdale, CA, and transport overland to Edwards. |
| 9 March 1979 | 1st test flight of SCA/OV-102 combination @ Edwards |
| 20 March 1979 | 2nd test hop of SCA/OV-102 @ Ewards (Tiles fell off on previous test |
| 21 March 1979 | Ferry flight from Edwards to Biggs AAB, El Paso |
| 22 March 1979 | 2nd leg of flight, Biggs AAB to Kelly AFB, San Antonio |
| 23 March 1979 | 3rd hop from Kelly AFB to Eglin AFB |
| 24 March 1979 | Arrival KSC, delivery to OPF-1, begin tile work |
| 6 July 1979 | ET-01 (HWT-01) arrives @ KSC |
| 3 November 1980 | ET/SRB mate |
| 16 November 1980 | Tile work complete |
| 24 November 1980 | OV-102 rollover to VAB, amted to stack in High Bay 3 |
| 29 December 1980 | Rollout to Pad 39A on MLP-1 |
| 22 January 1981 | 1st propellant loading tests begin |
| 20 February 1981 | Flight Readiness Firing (FRF-1) of main engines conducted @ 100% for a 23 second firing at 8:45 am EST |
| 19 March 1981 | TCDT dress rehearsal with crew aboard orbiter was conducted (later that morning two technicians were asphixiated in an engine compartment accident). |
| 25 - 27 March 1981 | Two propellant laoding tests conducted to verify ET insulation repairs |
| 5 April 1981 | "Call to Stations"' 73 hr. countdown started at 11:30 pm EST |
| 8 April 1981 | Astronaut arrival at Patrick AFB/KSC |
| 10 April 1981 | 1st scrub due to computer interface upset |
| 12 April 1981 | Launch |
| 14 April 1981 | Landing at Edwards AFB |
| 27 April 1981 | Return ferry flight from Edwards AFB to Tinker AFB |
| 28 April 1981 | Depart Tinker AFB and arrives KSC |
| 29 April 1981 | OV-102 arrives at OPF-1 |
| APU Activation (1) | N/A 12 April |
| APU Activation (2) | N/A |
| APU Activation (3) | N/A |
| SRB HPU Activation Command | N/A |
| MPS Start Command Seq. (Eng 3) | N/A |
| SRB Ign. Com. f/GPC (lift-off) | 1200:03 |
| MPS Throttle to 65% | 1200:47 |
| Max Dynamic Press (MaxQ) | 1200:56 |
| MPS Throttle to 100% | 1201:05 |
| SRB Sep Command | 1202:14 |
| MPS Throttle down | 1207:36 |
| Main Engine Cutoff (MECO) | 1208:38 |
| ET Seperation | 1209:02 |
| OMS-1 Ignition | 1210:38 |
| OMS-2 Cutoff | 1212:04 |
| APU deactivation (3) | 1214:57 |
| OMS-2 Ignition | 1244:06 |
| OMS-2 Cutoff | 1245:21 |
| Payload Bay Door Tests | 1343:07 |
| OMS-3 Ignition | 1820:50 |
| OMS-3 Cutoff | 1821:20 |
| OMS-4 & RCS-1&2 tests | 1905:36 |
| OMS-4 Cutoff | 1906:09 |
| PBD closing/Deorbit test/RCS-3 test | 1448:00 13 April |
| PBD Open | 1647:00 |
| PBD Closed | 1429:55 14 April |
| FCS checkout - APU 2&3 activ. | 1717:23 |
| De-Orbit Maneuver Ig. | 1721:35 |
| APU 1 Activate | 1743:16 |
| De-Orbit Maneuver Cutoff | 1745:51 |
| Entry Enterface (400,000') | 1749:05 |
| End Blackout | 1808:30 |
| Terminal Are Energy Managment | 1814:34 |
| Landing Gear Deploy | 1820:00 |
| Main LG Contact | 1820:51 |
| Nose Gear Contact | 1821:11 |
| Wheel Stop | 1821:57 |
| APU Deactivation Complete | 1822:39 |
| Crew Egress | 1928:00 |