Skip to content
79,433 pages · 13,741 images · since 1994 Browse A–Z Today in space history
Encyclopedia Astronautica The full story of spaceflight
Encyclopedia entry

J57-19

Engine · USA

Original archive entry. The text, images and links below are kept as they were written.

Pratt and Whitney turbojet engine. Out of production. Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust. Used on B-52 launch aircraft for X-15A. First flight 1959.

Thrust (sl): 48.900 kN (10,993 lbf). Thrust (sl): 4,989 kgf.

Family
Turbojet
Country
USA
Spacecraft
X-15A, X-15A-2
Propellants
Air/Kerosene
Stages
NB-52