Sorrell Hiperbipe

Sorrell SNS-7 Hiperbipe
Role Homebuilt aircraft
National origin United States
Manufacturer Sorrell Aviation
Designer Sorrell brothers
Status Out of production
Variants Sorrell Hiperlight

The Sorrell SNS-7 Hiperbipe is a two seat, negative stagger, conventional landing gear-equipped cabin biplane designed for amateur construction that was produced in kit form by Sorrell Aviation of Tenino, Washington.[1]

Design

The SNS-7 (Sorrell Negative Stagger, Model 7) was intended to give full unlimited aerobatic performance without sacrificing the comforts of a cabin-style aircraft.[1]

The design is of mixed construction. The fuselage, tail, engine mount, landing gear mounts, interplane struts and flight controls are all built from welded 4130 steel. The wings are made from wood, with wooden stressed skin. The landing gear is sprung steel tube. The engine cowling and wheel pants are fibreglass. The whole airframe is covered in doped aircraft fabric, including the plywood-covered wings. The airfoil is a custom symmetrical design.[1][2]

The SNS-7 is capable of advanced aerobatics, including vertical eight point rolls and inside and outside vertical eights.[1]

The Hiperbipe kit has been out of production since the 1980s.

Operational history

In April 2010 there were 22 Hiperbipes registered in the USA, two in Canada and one in the UK.[3][4][5]

Specifications (SNS-7)

Data from Plane & Pilot[1] and Pilot Friend[6]

General characteristics
  • Crew: one
  • Capacity: one passenger
  • Length: 20 ft 10 in (6.35 m)
  • Wingspan: 22 ft 10 in (6.96 m)
  • Height: 5 ft 10.75 in (1.7971 m)
  • Wing area: 150 sq ft (14 m2)
  • Airfoil: Symmetrical Sorrell design
  • Empty weight: 1,236 lb (561 kg)
  • Gross weight: 1,911 lb (867 kg) utility1 category, 1690 lbs (766 kg) aerobatic
  • Fuel capacity: 227 lbs
  • Powerplant: 1 × Lycoming IO-360-B1E four cylinder, four stroke, piston aircraft engine, 180 hp (130 kW)

Performance

  • Maximum speed: 225 mph (362 km/h; 196 kn)
  • Cruise speed: 160 mph (139 kn; 257 km/h)
  • Stall speed: 49 mph (43 kn; 79 km/h)
  • Range: 502 mi (436 nmi; 808 km)
  • Service ceiling: 20,000 ft (6,096 m)
  • Wing loading: 12.74 lb/sq ft (62.2 kg/m2)
  • Power/mass: 10.62 lb/hp

See also

Related development
Aircraft of comparable role, configuration and era

References

External links

  • Photo of the sole UK Hiperbipe on Airliners.net


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