Mission 26
STS-26R
1988-091A
Crew: 5 CDR - Frederick H. Hauck
Plt - Richard O. Covey
MS 1 - John M. Lounge (EV 2)
MS 2 - David C. Hilmers
MS 3 - George D. Nelson (EV 1)
Launch 29 September 1988 @ 1137:00.687 EDT
Orbital incl: 28.47
Max alt: 331.5 km.
Orbits: 63
Dur: 4:01:00:11
Landing: 3 October 1988 @ 0937:11 PDT
Launch Info: Orbiter - Discovery 103-7 Pad 39B KSC (MLP-2) - Hold on 1 hour,
38 minutes commencing at T-3 hours and continuing at T-9 minutes due to slower than
expected high altitude winds. Landed at Edwards AFB dry lakebed runway 17

MISSION PARTICULARS
Launch Window: 3 hours (9:59 am - 12:59 pm EDT) - Window extended to 1:59 pm EDT
TAL Sites: Moron (alternates Ben Guerir and Banjul)
AOA site: Edwards AFB (alternate WS and KSC)
Primary landing site: Edwards AFB, scheduled 9:33 am PDT 3 October
Landing Speed: 187 knots (215 mph)
Landing rollout: 7,451' from main gear touchdown
Vehicle weight @ liftoff: 4,520,276 lbs
Orbiter weight @ liftoff: 254,449 lbs
Orbiter weight @ landing: 197,300 lbs
PAYLOADS
Cargo mass approx.: 44,590 lbs
Landing Weight: 8,983 lbs
Special mission kits: EMU's 1091, 1090, Galley, MADS, PSA, teleprinter, Payload Bay Liner, no RMS
PRIMARY PAYLOADS
TDRS-C/IUS-#7 - 1988-091B Deployed mass - 37,514 lbs on IUS cradle. TDRS mass - 4,637 lbs
SECONDARY PAYLOADS
Mid-deck PVTOS-2 (see 51-I), IEF-2 (see 41-B), PPE (see 51D), ARC-2 (see 51-C), MLE-1 (Mesoscale Lightning Experiment), PCG II (Protein Crystal Growth), ADSF (see 512-G), IRCFE (Infrared Communicatin Flight Experiment), ELRAD (Earth-Limb Radiance Exp.), OASIS-1 (Orbiter Exposure Autonomous Supporting Instrumentation)
SSIP SE82-4 & SE82-05 (see 51-L)
SHUTTLE STACK COMPONENTS
SSME's: 2019 (1) - 4th use, 2022 (2) & 2028 (3) - Both 1st use. All Tower Clear 104%
OMS Pods/Engines: LP-04/109 - Pod 4th use, Motor 1st use & RP-03/114 - Pod 8th use, Motor 1st use
ET: ET-28 (LWT-21)
SRB's: BI-029 (RSRM-1) - Set successfully recovered
SHUTTLE STACK COMPONENTS
Left - 29A Right - 29B
New ? Fwd ? New
New ? Cyl 22-? New
New ? Cyl ? New
New ? Cyl ? 20-?
21-? ? Cyl ? New
New ? Cyl ? New
New ? Cyl ? New
New ? Att ? New
22-? ? Stf ? New
22-? ? Stf ? New
New ? Aft ? New
Return to Flight.
MISSION MILESTONES:
8 September 1985 OV-103 returns to OPF following Mission-20/51-I
4 November 1985 ET-28 arrives on dock KSC
30 October 1986 OV-103 rollover from VAB storage to OPF-1 for mods
29 March 1988 Left Hand SRB stacking begins in VAB
29 May 1988 Right Hand SRB stacking completed
10 June 1988 ET/SRB mate
21 June 1988 OV-103 rollover from OPF-1 to VAB High Bay 1 for stacking
24 June 1988 OV-103 mate to stack
4 July 1988 Stack rollout to Pad 39B
15 July 1988 OMS pod leak found and studied
1 August 1988 Wet Countdown Test conducted (ET tanking test after several false starts due to H2 leaks)
4 August 1988 FRF attempted, cutoff at T-6 seconds due to sluggish engine bleed valve, 7:30 am
10 August 1988 FRF conducted successfully for a duratin of 22 seconds at 7:30 am EDT (at 104% power level)
19 August 1988 OMS pod leak repaired at the pad, using clamshell devise
29 August 1988 TDRS-C installed in payload bay at Pad 39B
8 September 1988 TCDT dress rehearsal with crew aboard orbiter
26 September 1988 Astronaut arrival KSC, "Call to stations" 43 hr countdown started at 8 am EDT
29 September 1988 Launch
3 October 1988 Landing at Edwards AFB
8 October 1988 Ferry flight from Edwrds to Kelly AFB fo rrefuelling and on to KSC (one day hop)
9 October 1988 OV-103 delivered to the OPF-1
pre-shuttle missions. shuttle era missions.
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