Sperwill CA

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules as well as European regulations. It features a paraglider-style wing, single-place accommodation and a single 21 hp (16 kW) Cors'Air M21Y engine in pusher configuration with a 2.6:1 ratio reduction drive and a three-bladed, fixed-pitch wooden propeller. The fuel tank capacity is 9 litres (2.0 imp gal; 2.4 US gal). The aircraft is built from a combination of bolted aluminium and 4130 steel tubing and dismantles for ground transport.^[1]

As is the case with all paramotors, take-off and landing is accomplished by foot. Inflight steering is accomplished via handles that actuate the canopy brakes, creating roll and yaw.^[1]

Data from Bertrand^[1]

General characteristics

• Crew: one
• Empty weight: 25 kg (55 lb)
• Fuel capacity: 9 litres (2.0 imp gal; 2.4 US gal)
• Powerplant: 1 × Cors'Air M21Y single cylinder, two-stroke, air-cooled aircraft engine, with a 2.6:1 reduction drive, 16 kW (21 hp)
• Propellers: 3-bladed wooden, fixed-pitch