Büttner Crazy Flyer

Crazy Flyer
Role	Powered parachute
National origin	Germany
Manufacturer	Büttner Propeller
Status	In production (2015)

The Büttner Crazy Flyer (also called the Crazy Flier) is a family of one and two-seat German powered parachutes designed and produced by Büttner Propeller of Obernkirchen. The aircraft are supplied complete and ready-to-fly, but without wings.[1]

Design and development

The Crazy Flyer 2 two-seater was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb). The Crazy Flyer 2 features two-seats-in-tandem accommodation, tricycle landing gear and a single 53 hp (40 kW) Hirth 2704 engine in pusher configuration.[1]

The aircraft carriage is built from triangulated bolted aluminium tubing. The main landing gear incorporates spring rod suspension. A variety of parachute-style wings from different manufacturers can be used.[1]

Variants

Crazy Flyer 1

Single seat version powered by a Hirth F33 30 hp (22 kW) motor[1]

Crazy Flyer 2

Two seat version powered by a Hirth 2704 53 hp (40 kW) motor[1]

Specifications (Crazy Flyer 2)

Data from Bertrand[1]

General characteristics

• Crew: one
• Capacity: one passenger
• Empty weight: 87 kg (192 lb)
• Fuel capacity: 30 litres (6.6 imp gal; 7.9 US gal)
• Powerplant: 1 × Hirth 2704 twin cylinder, two-stroke, air-cooled aircraft engine, 40 kW (53 hp)
• Propellers: 4-bladed composite ground adjustable

Performance

• Maximum speed: 52 km/h (32 mph, 28 kn)

References

1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 80. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X

External links

• Official website