Ultrasport 331 | |
---|---|
Role | Helicopter |
National origin | United States |
Manufacturer | American Sportscopter |
Status | Production completed |
Number built | At least six |
Developed from | Ultrasport 254 |
Variants | Hexiang WD-100 |
The American Sportscopter Ultrasport 331 is an American helicopter that was designed and produced by American Sportscopter of Newport News, Virginia. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction. [1]
The Ultrasport 331 is a development of the Ultrasport 254 and, like that model, is named for its empty weight in pounds. The aircraft was designed to comply with the US Experimental - Amateur-built aircraft rules. It features a single main rotor, a single-seat enclosed cockpit with doors, skid-type landing gear and a twin cylinder, air-cooled, two-stroke, dual-ignition 65 hp (48 kW) Hirth 2706 engine. [1]
The aircraft fuselage is made from composites. Its 21.00 ft (6.4 m) diameter two-bladed rotor has a chord of 6.7 in (17.0 cm) and employs an ATI 012 (VR-7 mod) airfoil at the blade root, transitioning to an ATI 008 (VR-7 mod) airfoil at the tip. The ring-mounted tail rotor has a 2.60 ft (0.8 m) diameter and a chord of 2 in (5.1 cm). The cyclic control is mounted from the cockpit ceiling, but otherwise is conventional. The horizontal tailplane mounts end-fins for directional stability. [1] [2]
The aircraft has an empty weight of 330 lb (150 kg) and a gross weight of 680 lb (308 kg), giving a useful load of 350 lb (159 kg). With full fuel of 10 U.S. gallons (38 L; 8.3 imp gal) the payload is 290 lb (132 kg). [1]
The manufacturer estimated the construction time from the supplied kit as 60 hours. [1]
By June 2014 three examples had been registered in the United States with the Federal Aviation Administration, although a total of six had been registered at one time. [3]
Data from Purdy [1]
General characteristics
Performance
The American Sportscopter Ultrasport 254 is an American helicopter that was designed and produced by American Sportscopter and first flown in July 1993. The aircraft was produced by Light's American Sportscopter Inc from 1999. The aircraft was supplied as a kit for amateur construction.
The Vortech Kestrel Jet is an American tip-jet helicopter that was designed in the 1980s. Kits for amateur construction were originally provided by Vortech and plans remain available.
The Laron Wizard is an American homebuilt aircraft produced by Laron Aviation Tech of Borger, Texas. When it was available the aircraft was supplied as a kit for amateur construction.
The Air Command Commander Sport is an American autogyro that was designed and produced by Air Command International of Wylie, Texas. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Amax Double Eagle TT is an Australian autogyro that was designed and produced by Amax Engineering of Donvale, Victoria in the late 1990s. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Amax Eagle TT is an Australian autogyro that was designed and produced by Amax Engineering of Donvale, Victoria, introduced in the 1990s. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Amax Eagle is an Australian autogyro that was designed and produced by Amax Engineering of Donvale, Victoria, introduced in the early 1990s. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The American Sportscopter Ultrasport 496 is an American helicopter that was designed and produced by American Sportscopter of Newport News, Virginia. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Eagle's Perch was an American helicopter that was designed by the Nolan brothers and produced by Eagle's Perch Inc. of Carrollton, Virginia. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Vortech Skylark is an American helicopter produced by Vortech of Fallston, Maryland. The aircraft is supplied in the form of plans for amateur construction. Vortech also supplies rotor blades for the design.
The Farrington Twinstar is an American two-seat autogyro that was designed and produced by Farrington Aircraft of Paducah, Kentucky, a company owned by Don Farrington. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Hillberg EH1-01 RotorMouse is an American helicopter that was designed by Donald Gene Hillberg and produced by Hillberg Helicopters of Fountain Valley, California, first flying in 1993. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Little Wing Roto-Pup is an American autogyro that was designed and produced by Little Wing Autogyros, Inc. of Mayflower, Arkansas, introduced in the 1990s. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Midwest Zodiac Talon-Turbine is an American helicopter that was designed and produced by Midwest Engineering & Design of Overland Park, Kansas. When it was available the aircraft was supplied in the form of plans for amateur construction, but the plans are no longer advertised for sale.
The Pawnee Warrior was an American helicopter that was designed and produced by Pawnee Aviation of Longmont, Colorado. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Raven Explorer I is an American autogyro that was designed and produced by Raven Rotorcraft of Boulder Colorado and later El Prado, New Mexico, introduced in the 1990s. Now out of production, when it was available the aircraft was supplied as a kit, for amateur construction.
The Showers Skytwister Choppy is an American helicopter that was produced by Showers-Aero of Milton, Pennsylvania, introduced in 1992. Now out of production, when it was available the aircraft was supplied in the form of CAD plans for amateur construction.
The Windspire Aeros is an American helicopter that was designed and produced by Windspire Inc. of Long Green, Maryland. Now out of production, when it was available the aircraft was supplied in the form of plans for amateur construction.
The Paraplane GE-2 Golden Eagle is an American powered parachute that was designed and produced by Paraplane International of Medford, New Jersey. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction.
The Rotorschmiede VA115 is a German helicopter, designed and produced by Rotorschmiede GmbH of Munich, introduced at the AERO Friedrichshafen airshow in 2015. The aircraft is supplied complete and ready-to-fly.