Grumman OV-1 Mohawk

Specifications

1st Flight 1959

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 takeoff 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)

Variants

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 maneuver forces.

YAO-1 (YOV-1A)

Initial prototypes (9 built).

OV-1A (AO-1AF)

Daylight observation variant (64 built).

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 (1 conversion).

OV-1B (AO-1BF)

SLAR variant (101 built).

OV-1C (AO-1CF)

IR reconnaissance variant (169 built).

OV-1D

Consolidated sensor variant (37 new, 82 conversions).

JOV-1A

OV-1As and OV-1Cs fitted with armament (59 conversions).

RV-1C

Quick Look ELINT machines (two conversions).

RV-1D

Quick Look II ELINT machine (31 conversions).

EV-1E

Quick Look III ELINT machine (16 conversions).

OV-1E

Prototype for unproduced modernized variant (1 built).

 

 

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