JT11D-20
E898157
The JT11D-20, better known as the Pratt & Whitney J58, is a high-performance afterburning turbojet engine developed for sustained Mach 3+ flight, most famously powering the Lockheed SR-71 Blackbird reconnaissance aircraft.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
afterburning turbojet engine
ⓘ
turbojet engine ⓘ |
| alsoKnownAs | Pratt & Whitney J58 NERFINISHED ⓘ |
| civilDesignation | JT11D-20 NERFINISHED ⓘ |
| compressorType | axial-flow compressor ⓘ |
| coolingMethod | fuel-cooled components ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedBy | Pratt & Whitney engineering team ⓘ |
| designedForAltitude | high-altitude flight ⓘ |
| designedForMissionProfile | high-speed strategic reconnaissance ⓘ |
| designedForSpeed | Mach 3+ ⓘ |
| developedFor | sustained Mach 3+ flight ⓘ |
| enteredServiceWith | Lockheed A-12 NERFINISHED ⓘ |
| era | Cold War ⓘ |
| fuelType | JP-7 ⓘ |
| hasAfterburner | true ⓘ |
| hasConfiguration | single-spool fan with multi-stage compressor ⓘ |
| hasFeature |
afterburner
ⓘ
bleed-bypass system ⓘ hybrid turbojet/ramjet-like operation at high Mach ⓘ |
| hasInletIntegration | variable-geometry inlet system on SR-71 ⓘ |
| hasSpecialRequirement | low-volatility fuel (JP-7) ⓘ |
| hasSpecialSystem | fuel as heat sink for engine and airframe ⓘ |
| manufacturer | Pratt & Whitney NERFINISHED ⓘ |
| militaryDesignation | J58 NERFINISHED ⓘ |
| notableCharacteristic |
ability to operate continuously at very high turbine inlet temperatures
ⓘ
transition of thrust contribution from engine core to inlet and afterburner at high Mach ⓘ |
| notableFor |
operation as part of an integrated inlet-engine system
ⓘ
sustained high-Mach cruise capability ⓘ |
| notableUserPlatform |
Lockheed SR-71A
NERFINISHED
ⓘ
Lockheed SR-71B NERFINISHED ⓘ Lockheed SR-71C NERFINISHED ⓘ |
| numberOfShafts | two-shaft ⓘ |
| operatedWith |
bypass doors for bleed air management
ⓘ
spike-controlled inlets ⓘ |
| optimizedFor |
high inlet temperature tolerance
ⓘ
long-duration supersonic cruise ⓘ |
| primaryRole | reconnaissance aircraft propulsion ⓘ |
| programAssociation |
Blackbird program
ⓘ
Oxcart program NERFINISHED ⓘ |
| propulsionType | turbojet ⓘ |
| successorTo | earlier Pratt & Whitney military turbojets ⓘ |
| thrustClass | high-thrust military turbojet ⓘ |
| usedBy | United States Air Force ⓘ |
| usedInAircraft |
Lockheed A-12
NERFINISHED
ⓘ
Lockheed SR-71 Blackbird NERFINISHED ⓘ Lockheed YF-12 NERFINISHED ⓘ |
| usedInRole | strategic reconnaissance ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.