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.[1]
The design was intended to be a simplified helicopter. Constructed by two brothers with no prior aeronautical experience or skills it employed a unique coaxial, counter-rotating, fixed pitch rotor system with no collective control, but employed a rudder. To account for the fact that the aircraft could not autorotate after a power failure, it was equipped with two engines and could hover on either one. A ballistic parachute was optional.[1]
The Eagle's Perch was designed to comply with the US Experimental - Amateur-built aircraft rules. The aircraft had a standard empty weight of 240 lb (109 kg). It featured two coaxial main rotors, a single-seat open cockpit without a windshield, skid-type landing gear and two twin-cylinder, air-cooled, two-stroke, dual-ignition 50 hp (37 kW) Hirth 2706 engines.[1]
The aircraft fuselage was made from welded steel tubing. Its 13.5 ft (4.1 m) diameter two-bladed rotors were of a fixed pitch design. The aircraft had an empty weight of 480 lb (218 kg) and a gross weight of 800 lb (363 kg), giving a useful load of 320 lb (145 kg). With full fuel of 10 U.S. gallons (38 L; 8.3 imp gal) the payload for pilot and baggage was 260 lb (118 kg).[1]
The manufacturer estimated the construction time from the supplied kit to be 240 hours.[1]
The design won Grand Champion Helicopter at the Popular Rotorcraft Association convention in 1994.[1]
By July 2014 no examples remained registered in the United States with the Federal Aviation Administration and it is unlikely any exist today, although one, the prototype, had been registered at one time.[2]
eagle, perch, american, helicopter, that, designed, nolan, brothers, produced, carrollton, virginia, production, when, available, aircraft, supplied, amateur, construction, prototype, role, helicopternational, origin, united, statesmanufacturer, designer, nola. 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 1 Eagle s PerchThe prototype Eagle s PerchRole HelicopterNational origin United StatesManufacturer Eagle s Perch Inc Designer Nolan brothersStatus Production completedNumber built At least oneVariants Phoenix Skyblazer Contents 1 Design and development 2 Operational history 3 Specifications Eagle s Perch 4 See also 5 ReferencesDesign and development editThe design was intended to be a simplified helicopter Constructed by two brothers with no prior aeronautical experience or skills it employed a unique coaxial counter rotating fixed pitch rotor system with no collective control but employed a rudder To account for the fact that the aircraft could not autorotate after a power failure it was equipped with two engines and could hover on either one A ballistic parachute was optional 1 The Eagle s Perch was designed to comply with the US Experimental Amateur built aircraft rules The aircraft had a standard empty weight of 240 lb 109 kg It featured two coaxial main rotors a single seat open cockpit without a windshield skid type landing gear and two twin cylinder air cooled two stroke dual ignition 50 hp 37 kW Hirth 2706 engines 1 The aircraft fuselage was made from welded steel tubing Its 13 5 ft 4 1 m diameter two bladed rotors were of a fixed pitch design The aircraft had an empty weight of 480 lb 218 kg and a gross weight of 800 lb 363 kg giving a useful load of 320 lb 145 kg With full fuel of 10 U S gallons 38 L 8 3 imp gal the payload for pilot and baggage was 260 lb 118 kg 1 The manufacturer estimated the construction time from the supplied kit to be 240 hours 1 The design was later developed into the Phoenix Skyblazer Operational history editThe design won Grand Champion Helicopter at the Popular Rotorcraft Association convention in 1994 1 By July 2014 no examples remained registered in the United States with the Federal Aviation Administration and it is unlikely any exist today although one the prototype had been registered at one time 2 Specifications Eagle s Perch editData from Purdy 1 General characteristicsCrew one Length 14 ft 0 in 4 27 m Empty weight 480 lb 218 kg Gross weight 800 lb 363 kg Fuel capacity 10 U S gallons 38 L 8 3 imp gal Powerplant 2 Hirth 2706 twin cylinder air cooled two stroke aircraft engines 50 hp 37 kW each Main rotor diameter 2 13 ft 6 in 4 11 m Main rotor area 286 sq ft 26 6 m2 Performance Maximum speed 80 mph 130 km h 70 kn Cruise speed 60 mph 97 km h 52 kn Range 100 mi 160 km 87 nmi Rate of climb 3 000 ft min 15 m s Disk loading 2 80 lb sq ft 13 7 kg m2 See also editList of rotorcraftReferences edit a b c d e f g Purdy Don AeroCrafter Homebuilt Aircraft Sourcebook Fifth Edition page 322 BAI Communications 15 July 1998 ISBN 0 9636409 4 1 Federal Aviation Administration July 3 2014 N Number Inquiry Results Retrieved July 3 2014 Retrieved from https en wikipedia org w index php title Eagle 27s Perch amp oldid 1117636440, wikipedia, wiki, book, books, library,
