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Boeing 747SP-21

Image Description

SOFIA (Stratospheric Observatory For Infrared Astronomy).
SOFIA uses a 2.5 m (8.2 ft) reflector telescope, which has a 2.7 m (8.9 ft) diameter primary mirror. Visible in the picture is the counterweight, the instrumentation section and the pressurized bulkhead with the vibration reduction system. The telescope itself is located behind the bulkhead.
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Boeing 747SP-21

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Date Taken:
19th September 2019
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Aircraft Data

The Boeing 747 often referred to by the nickname "Jumbo Jet" is among the world's most recognizable and most successful commercial aircraft used by many of the worlds leading airlines primarily for long haul international routes

The Boeing 747SP is a highly modified version of the Boeing 747-100. The weight saved by the shortened fuselage permits longer range and increased speed.

Summary data for Boeing 747 SP
Country of originFirst flightNo. builtNo. in serviceCrewPassengers
USA197545143230 - 331


4 x Pratt & Whitney JT9D (45800 - 56000 lbf) turbofan engines.


Dimensions for Boeing 747 SP
Length184 ft. 9 in.
Wing Span195 ft. 8 in.
Height65 ft. 8 in.
Empty Weight336,870 lbs.
Max Weight670,000 lbs.


Performance of Boeing 747 SP
Max Speed591 kts
Cruise Speed535 kts
Ceiling35,000 ft.
Normal Range5,000nm
Max Range6,650nm

Updated 22nd November 2008

Show using: Metric | Imperial


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