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Pegasus XL
Part of Pegasus Family

Pegasus XL

Pegasus XL

American air-launched orbital launch vehicle. Uprated version of Pegasus air-launched winged light satellite launcher. 4 stage vehicle consisting of 1 x L-1011 + 1 x Pegasus XL stage 1 + 1 x Orion 50XL + 1 x Orion 38.

Status: Active. First Launch: 1994-06-27. Last Launch: 2016-12-15. Number: 27 . Payload: 443 kg (976 lb). Thrust: 486.64 kN (109,401 lbf). Gross mass: 24,000 kg (52,000 lb). Height: 17.60 m (57.70 ft). Diameter: 1.27 m (4.16 ft). Apogee: 185 km (114 mi).

LEO Payload: 443 kg (976 lb) to a 185 km orbit at 28.50 degrees. Payload: 190 kg (410 lb) to a 800 km SSO. Launch Price $: 12.000 million in 1994 dollars.

Stage Data - Pegasus XL

  • Stage 0. 1 x L-1011. Gross Mass: 156,000 kg (343,000 lb). Empty Mass: 109,629 kg (241,690 lb). Thrust (vac): 561.900 kN (126,320 lbf). Isp: 9,900 sec. Burn time: 4,590 sec. Isp(sl): 9,000 sec. Diameter: 16.86 m (55.31 ft). Span: 47.00 m (154.00 ft). Length: 54.00 m (177.00 ft). Propellants: Air/Kerosene. No Engines: 3. Engine: RB-211-22B. Status: In Production. Comments: Lockheed airliner swept wing. Release conditions: Belly-mounted, 36,800 kg, 17.1 m length x 7.9 m span at 925 kph at 11,890 m altitude.
  • Stage 1. 1 x Pegasus XL-1. Gross Mass: 17,934 kg (39,537 lb). Empty Mass: 2,886 kg (6,362 lb). Thrust (vac): 589.007 kN (132,414 lbf). Isp: 293 sec. Burn time: 73 sec. Isp(sl): 180 sec. Diameter: 1.27 m (4.16 ft). Span: 6.71 m (22.01 ft). Length: 8.88 m (29.13 ft). Propellants: Solid. No Engines: 1. Engine: Pegasus XL-1. Status: In Production.
  • Stage 2. 1 x Pegasus XL-2. Gross Mass: 4,331 kg (9,548 lb). Empty Mass: 416 kg (917 lb). Thrust (vac): 153.503 kN (34,509 lbf). Isp: 290 sec. Burn time: 73 sec. Isp(sl): 240 sec. Diameter: 1.27 m (4.16 ft). Span: 1.27 m (4.16 ft). Length: 3.58 m (11.74 ft). Propellants: Solid. No Engines: 1. Engine: Pegasus XL-2. Status: In Production.
  • Stage 3. 1 x Pegasus-3. Gross Mass: 985 kg (2,171 lb). Empty Mass: 203 kg (447 lb). Thrust (vac): 34.568 kN (7,771 lbf). Isp: 293 sec. Burn time: 65 sec. Isp(sl): 240 sec. Diameter: 0.97 m (3.18 ft). Span: 0.97 m (3.18 ft). Length: 2.08 m (6.82 ft). Propellants: Solid. No Engines: 1. Engine: Pegasus-3. Status: In Production.


More at: Pegasus XL.

Family: aircraft-launched, orbital launch vehicle. Country: USA. Engines: RB-211-22B. Spacecraft: REX, Orbcomm, Eagle, Microstar, STEP, TOMS-EP, FAST, HETE, SAC-B, CPAC, Minisat, Orbview-2, FORTE, SNOE, Teledesic, TRACE, SWAS, WIRE, TERRIERS, SA-200, Orbview, HESSI, SORCE, Galex, SCISAT, ST5, RS-300, C/NOFS, IRIS Interface Region Imaging Spectrograph. Projects: SAC, Small Explorer, STEDI. Launch Sites: Cape Canaveral, Point Arguello WADZ, Mayport DZ, Wallops Island DZ, Gran Canaria DZ, Kwajalein DZ. Stages: L-1011, Pegasus XL-1, Pegasus XL-2, Pegasus-3. Agency: OSC.

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