| General characteristics |
| Crew: 2 |
| Capacity: 2 seated passengers or 4 on the floor with rear seats folded/removed |
| Length: 30 ft 3.75 in (9.2393 m) including rotors |
| Height: 8 ft 1.5 in (2.477 m) to top of rotor hub |
| Empty weight: 1,229 lb (557 kg) |
| Gross weight: 2,400 lb (1,089 kg) |
| Max takeoff weight: 2,700 lb (1,225 kg) |
| Fuel capacity: 61.5 US gal (51 imp gal; 233 l) in two 50% sel-sealing bladder tanks under rear cabin floor |
| Powerplant: 1 × Allison T63-A-5A turboshaft engine, 317 shp (236 kW) de-rated to:- |
| 252.5 shp (188 kW) for take-off |
| 214.5 shp (160 kW) maximum continuous |
| Main rotor diameter: 26 ft 4 in (8.03 m) |
| Main rotor area: 544.63 sq ft (50.598 m2) |
| Blade section: - NACA 0012[40] |
| Performance |
| Cruise speed: 130 kn (150 mph, 240 km/h) maximum at sea level |
| 116 kn (133 mph; 215 km/h) for maximum range at sea level |
| Never exceed speed: 130 kn (150 mph, 240 km/h) at Sea Level |
| Range: 330 nmi (380 mi, 610 km) at 5,000 ft (1,524 m) |
| Ferry range: 1,354 nmi (1,558 mi, 2,508 km) with 1,300 lb (590 kg) of fuel |
| Service ceiling: 15,800 ft (4,800 m) |
| Hover ceiling OGE: 7,300 ft (2,225 m) |
| Hover ceiling IGE: 11,800 ft (3,597 m) |
| Rate of climb: 2,067 ft/min (10.50 m/s)[citation needed] |
| Disk loading: 4.4 lb/sq ft (21 kg/m2) |
| Power/mass: 0.105 shp/lb (0.173 kW/kg) |
| Armament |
| Provision for packaged armament on port side, including an XM-27 7.62 mm (0.300 in) machine-gun with 2,000 - 4,000 rounds of ammunition; or an XM-75 grenade launcher |
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The Hughes OH-6 Cayuse (nicknamed "Loach", after the requirement acronym LOH—Light Observation Helicopter) is a single-engine light helicopter with a four-bladed main rotor used for personnel transport, escort and attack missions, and observation. Hughes Helicopters also developed the Model 369 as a civilian helicopter, and the Hughes Model 500, currently produced by MD Helicopters as the MD 500.In 1960, the United States Army issued Technical Specification 153 for a Light Observation Helicopter (LOH) capable of fulfilling various roles: personnel transport, escort and attack missions, casualty evacuation and observation. Twelve companies took part in the competition and Hughes Tool Company's Aircraft Division submitted the Model 369. Two designs, those submitted by Fairchild-Hiller and Bell, were selected as finalists by the Army-Navy design competition board, but the U.S. Army later included the helicopter from Hughes as well.
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