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Boeing 747SP Special Performance Family

The Boeing 747SP is a shortened, long-range variant of the original 747 designed to fly farther with a smaller passenger load. Its reduced fuselage, modified tail, and lower weight supported ultra-long-range airline and government transport. One 747SP became SOFIA, a joint NASA and German Aerospace Center airborne observatory whose large infrared telescope operated above most of the water vapor in Earth's atmosphere.

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Identity

Aliases
747SPBoeing 747 Special PerformanceB74S
Family Name
Boeing 747SP
Full Name
Boeing 747SP Special Performance Family
Roles
airlinerbusinessresearchobservatory
Status
retired
Type
aircraft
Variant Name
SP

Details

Aircraft Specs
Configuration
fixed_wing
Operating Modes
land
Takeoff Landing Capabilities
conventional
Description
The Boeing 747SP is a shortened, long-range variant of the original 747 designed to fly farther with a smaller passenger load. Its reduced fuselage, modified tail, and lower weight supported ultra-long-range airline and government transport. One 747SP became SOFIA, a joint NASA and German Aerospace Center airborne observatory whose large infrared telescope operated above most of the water vapor in Earth's atmosphere.
First Flight Year
1,975
Manufacturer
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Nested value
    Name
    747SP Pratt & Whitney JT9D option set
    Notes
    The FAA Boeing 747 type certificate lists four Pratt & Whitney JT9D engines for the 747SP and names JT9D-3, JT9D-3A, JT9D-7, JT9D-7A, JT9D-7F and JT9D-7J as approved options. The separate Rolls-Royce RB211-524 option set remains unmodeled.

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Creation Time
July 29, 2026 at 12:46:11 UTC
Updated Time
July 31, 2026 at 05:30:00 UTC