Pratt & Whitney J58
E259605
The Pratt & Whitney J58 is a high-performance turbojet/ramjet hybrid engine developed for sustained high-speed, high-altitude flight, most famously powering the SR-71 Blackbird reconnaissance aircraft.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pratt & Whitney J58 canonical | 3 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
afterburning turbojet
ⓘ
turbojet engine ⓘ turboramjet ⓘ |
| applicationRole | strategic reconnaissance ⓘ |
| bypassRatio | very low ⓘ |
| compressorType | axial compressor ⓘ |
| controlSystem | hydromechanical ⓘ |
| coolingMethod | fuel-cooled ⓘ |
| coolingUseOfFuel |
airframe heat sink
ⓘ
hydraulic fluid cooling ⓘ lubricant cooling ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedForAltitude | high altitude ⓘ |
| designedForSpeed | sustained Mach 3+ ⓘ |
| designGoal | continuous operation at extreme skin temperatures ⓘ |
| developedFor |
Lockheed A-12
ⓘ
SR-71 Blackbird ⓘ
surface form:
Lockheed SR-71 Blackbird
Lockheed YF-12 ⓘ |
| engineConfiguration | axial-flow ⓘ |
| exhaustGasTemperature | very high ⓘ |
| exhaustSystem | variable-area nozzle ⓘ |
| firstRunDate | late 1950s ⓘ |
| fuelType | JP-7 ⓘ |
| hasAfterburner | yes ⓘ |
| intakeIntegration | spike-controlled inlet system on SR-71 ⓘ |
| manufacturer | Pratt & Whitney ⓘ |
| NATOReportingName | JT11D-20 ⓘ |
| notableFeature |
acts as a turboramjet at high speed
ⓘ
bleed-bypass system routes air around core at high Mach ⓘ designed for sustained Mach 3+ flight ⓘ extensive use of high-temperature materials ⓘ fixed-geometry inlet compatibility ⓘ |
| notableRecord | enabled SR-71 world speed and altitude records ⓘ |
| numberOfCompressorStages | 9 ⓘ |
| numberOfEnginesPerSR71 | 2 ⓘ |
| numberOfTurbineStages | 2 ⓘ |
| operatingRegime | subsonic to high-supersonic ⓘ |
| primaryUser | United States Air Force ⓘ |
| serviceEntry | early 1960s ⓘ |
| status | retired ⓘ |
| thrustDry | approximately 32,500 lbf ⓘ |
| thrustWithAfterburner |
approximately 145 kN
ⓘ
approximately 34,000 lbf ⓘ |
| turbineType | axial turbine ⓘ |
| usedInAircraft |
Lockheed A-12
ⓘ
SR-71 Blackbird ⓘ
surface form:
Lockheed SR-71 Blackbird
Lockheed YF-12 ⓘ |
| usedOnProgram |
Lockheed A-12 program
ⓘ
surface form:
CIA Oxcart program
SR-71 Blackbird ⓘ
surface form:
USAF SR-71 program
|
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.