Lockheed YF-12

E798805

The Lockheed YF-12 was a high-speed, high-altitude American interceptor prototype developed in the 1960s as a derivative of the A-12/SR-71 family, intended to intercept and destroy enemy aircraft with advanced radar and long-range missiles.

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Observed surface forms (1)

Surface form Occurrences
YF-12 2

Statements (52)

Predicate Object
instanceOf interceptor aircraft
prototype aircraft
achievedAltitudeRecord yes
achievedSpeedRecord yes
airframeMaterial titanium
airIntakeType variable-geometry inlet
armament AIM-47 Falcon missile NERFINISHED
avionics fire-control radar
cancellationReason budget constraints
changing defense priorities
countryOfOrigin United States of America
surface form: United States
crew 2
crewPositions pilot
weapons systems officer
derivedFrom Lockheed A-12 NERFINISHED
designedFor high-altitude operations
long-range interception
designer Clarence "Kelly" Johnson NERFINISHED
developedBy Lockheed Skunk Works NERFINISHED
developedFor United States Air Force NERFINISHED
engineType afterburning turbojet
family A-12/SR-71 family NERFINISHED
firstFlight 1963-08-07
height 5.64 m
introduced 1963
landingGear tricycle landing gear
length 30.97 m
manufacturer Lockheed Corporation NERFINISHED
maximumSpeed Mach 3.2
maxTakeoffWeight 63,500 kg
missileCapacity 3 AIM-47 missiles
notableFeature chines along fuselage
stealthy shaping for reduced radar cross-section
numberBuilt 3
numberOfEngines 2
operatedBy NASA
powerplant Pratt & Whitney J58 NERFINISHED
primaryMission high-speed interception
programOutcome canceled
radar Hughes AN/ASG-18 NERFINISHED
range over 3,000 km
recordType world altitude record for interceptor aircraft
world speed record for interceptor aircraft
relatedTo Lockheed SR-71 Blackbird NERFINISHED
retired 1979
role interceptor
research aircraft
serviceCeiling over 80,000 ft
status retired
usedAs NASA research aircraft
usedBy United States Air Force
wingspan 16.94 m

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lockheed A-12 program aircraftVariantDeveloped Lockheed YF-12
this entity surface form: YF-12
Pratt & Whitney J58 developedFor Lockheed YF-12
YF-12C relatedTo Lockheed YF-12
JP-7 usedIn Lockheed YF-12
Pratt & Whitney J58 usedInAircraft Lockheed YF-12
Lockheed A-12 variant Lockheed YF-12
this entity surface form: YF-12