1st Flight 1959
The Grumman OV-1 Mohawk is an armed military observation and attack aircraft that was designed for battlefield surveillance and light strike capabilities.
It has a twin turboprop configuration, and carries two crew members in side-by-side seating.
The Mohawk was intended to operate from short, unimproved runways in support of United States Army forces.
Variants
YAO-1 (YOV-1A)
Initial prototypes.
OV-1A (AO-1AF)
Daylight observation variant.
OV-1A – Pittsburgh Institute of Aeronautics
Fitted with two additional Westinghouse J34 jet engines.
A non-flying, mixed-power, testbed, operated by the Pittsburgh Institute of Aeronautics.
OV-1B (AO-1BF)
SLAR variant.
OV-1C (AO-1CF)
IR reconnaissance variant.
OV-1D
Consolidated sensor variant.
JOV-1A
OV-1As and OV-1Cs fitted with armament.
RV-1C
Quick Look ELINT machines.
RV-1D
Quick Look II ELINT machine.
EV-1E
Quick Look III ELINT machine.
OV-1E
Prototype for unproduced modernized variant.
Specifications
Crew: 2
Length: 41 ft 0 in (12.50 m)
Wingspan: 48 ft 0 in (14.63 m)
Height: 12 ft 8 in (3.86 m)
Wing area: 360 sq ft (33 m2)
Aspect ratio: 5.35:1
Airfoil: NACA 2412
Empty weight: 12,054 lb (5,468 kg)
Gross weight: 15,544 lb (7,051 kg) (Normal take-off weight, IR mission)
Max take-off weight: 18,109 lb (8,214 kg) (SLAR mission)
Fuel capacity: 276 US gal (230 imp gal; 1,040 L) internal fuel
Powerplant: 2 × Lycoming T53-L-701 turboprops, 1,400 shp (1,000 kW) each
Propellers: 3-bladed Hamilton Standard Type 53C51-27 constant-speed propellers, 10 ft 0 in (3.05 m) diameter
Performance
Maximum speed: 305 mph (491 km/h, 265 kn) (IR mission)
Cruise speed: 207 mph (333 km/h, 180 kn) (econ. cruise)
Stall speed: 84 mph (135 km/h, 73 kn)
Never exceed speed: 450 mph (720 km/h, 390 kn)
Range: 944 mi (1,519 km, 820 nmi) with external tanks (SLAR mission)
Endurance: 4.35 hr (SLAR mission)
Service ceiling: 25,000 ft (7,600 m)
Rate of climb: 3,466 ft/min (17.61 m/s) (SLAR mission)
Take-off to 50 ft (15 m): 1,175 ft (358 m)
Landing run from 50 ft (15 m): 1,060 ft (320 m).
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