This aircraft paper model is a Boeing-Sikorsky RAH-66 Comanche attack helicopter, an advanced five-blade armed reconnaissance and attack helicopter designed for the United States Army, the papercraft was created by Mame Craft. The RAH-66 program was canceled in 2004, before mass production began, after nearly $7 billion was spent on the program.

During the early 1980s, the U.S. Army began formulating a requirement for the replacement of its helicopters then in service, resulting in the Light Helicopter Experimental program. In 1991, the Boeing-Sikorsky team was chosen to produce prototypes. The Comanche would incorporate stealth technologies, featuring a number of designs previously untried. It was to employ advanced sensors in its reconnaissance role, and was intended to designate targets for the AH-64 Apache. The aircraft was also armed with missiles and rockets to destroy armored vehicles. Two RAH-66 prototypes were built and conducted flight testing from 1996 to 2004. Since the cancellation the prototypes have been placed on display.

General characteristics

• Crew: 2
• Length: 46.85 ft (14.28 m)
• Rotor diameter: 39.04 ft (11.90 m)
• Height: 11.06 ft (3.37 m)
• Disc area: 1,197 ft² (111 m²)
• Empty weight: 9,300 lb (4,218 kg)
• Loaded weight: 12,349 lb (5,601 kg)
• Useful load: 5,062 lb (2,296 kg)
• Max. takeoff weight: 17,408 lb (7,896 kg)
• Powerplant: 2 × LHTEC T800-LHT-801 turboshaft, 1,563 hp (1,165 kW) each
• Fuselage length: 43.31 ft (13.20 m)
• Rotor systems: 5-bladed main rotor, 8-bladed fan-in-fin anti-torque system (FANTAIL)

Performance

• Maximum speed: 175 knots (201 mph, 324 km/h)
• Cruise speed: 165 knots (190 mph, 306 km/h)
• Range: 262 nmi (302 mi, 485 km) on internal fuel
• Combat radius: 150 nmi (173 mi, 278 km) on internal fuel
• Ferry range: 1,200 nmi (1,380 mi, 2,220 km)
• Endurance: 2.5 hr
• Service ceiling: 14,980 ft (4,566 m)
• Rate of climb: 895 ft/min (4.55 m/s)

Armament

• 1× 20 mm XM301 three-barrel Gatling-style cannon mounted in a Turreted Gun System (capacity: 500 rounds)
• Internal bays: 6× AGM-114 Hellfire air-to-ground missiles, or 6× AIM-92 Stinger air-to-air missiles, or 24× 2.75 in (70 mm) Hydra 70 air-to-ground rockets
• Optional stub wings: 8× Hellfires, 16× Stingers, or 56× Hydra 70 rockets

You can download the paper model here: Boeing-Sikorsky RAH-66 Comanche Attack Helicopter Free Paper Model Download