Heldeberg Marathon

The Heldeberg Marathon, also called the Blue Heron Marathon, is an Americanpowered parachute, that was designed and produced by Heldeberg Designs of Altamont, New York.[1][2][3]

Marathon
Role Powered parachute
National origin United States
Manufacturer Heldeberg Designs
Status Production completed

. . . Heldeberg Marathon . . .

The Marathon was designed to comply with the US FAR 103 Ultralight Vehicles two-seat trainer rules and today is marketed as a light-sport aircraft. The aircraft takes its name from its design goal of an aircraft with long range and endurance and features a range of 115 mi (185 km). It features a parachute-style high-wing, two-seats-in-tandem accommodation, tricycle landing gear and originally a single 50 hp (37 kW)Rotax 503 engine in pusher configuration. The 64 hp (48 kW)Rotax 582 was the standard engine used on later models.[1][4]

The aircraft is built from a combination of bolted duralaluminium and stainless steel tubing. It features a double ring propeller guard that has been roll-over tested. The 10 U.S. gallons (38 L; 8.3 imp gal) fuel tank is made from aluminium. In flight steering is accomplished via foot pedals, or optionally a control stick, that actuate the canopy brakes, creating roll and yaw. On the ground the aircraft has lever-controlled nosewheel steering. The main landing gear incorporates gas strut suspension. The aircraft is factory supplied in the form of an assembly kit that requires 30–50 hours to complete.[1][3]

Originally marketed by the factory under their own name, the aircraft was later marketed under the brand name Blue Heron, although the manufacturer remained the same.[1][3][4]

Data from Manufacturer[4]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 9 ft 8 in (2.95 m)
  • Wingspan: 39 ft 6 in (12.04 m)
  • Height: 6 ft 6 in (1.98 m)
  • Wing area: 500 sq ft (46 m2)
  • Empty weight: 308 lb (140 kg)
  • Gross weight: 850 lb (386 kg)
  • Fuel capacity: 10 U.S. gallons (38 L; 8.3 imp gal)
  • Powerplant: 1 × Rotax 582 twin cylinder, two-stroke, liquid-cooled aircraft engine, 64 hp (48 kW)

Performance

  • Cruise speed: 32 mph (51 km/h, 28 kn)
  • Range: 115 mi (185 km, 100 nmi)
  • Rate of climb: 900 ft/min (4.6 m/s)
  • Wing loading: 1.7 lb/sq ft (8.3 kg/m2)

. . . Heldeberg Marathon . . .

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. . . Heldeberg Marathon . . .