Vervoost FV 3 Delphin

Design and development

The FV-3 was originally designed as a research aircraft, but is also offered as a commercial model that complies with the Fédération Aéronautique Internationale microlight rules. It features a cantilever low-wing, a two-seats-in-tandem enclosed cockpit under a bubble canopy, fixed conventional landing gear and a single engine in tractor configuration.

The aircraft fuselage is made from welded steel tubing, with the aft part covered in doped aircraft fabric and the forward part covered in carbon fibre panels. Its 9.36 m (30.7 ft) span wing is made from carbon fibre and has an area of 11.92 m² (128.3 sq ft) and mounts large flaps. The wings are designed like glider wings and are easily removed, while the tailplane folds to allow ground transportation or storage. The standard engine available is the 100 hp (75 kW) Rotax 912ULS four-stroke powerplant.

Variants

FV-3

Microlight version

FV-3F

Research version, with a second generator for flight instrumentation and equipment

Specifications (FV-3 Delphin)

Data from Bayerland Tacke

General characteristics

Crew: one

Capacity: one passenger

Wingspan: 9.36 m (30 ft 9 in)

Wing area: 11.92 m² (128.3 sq ft)

Empty weight: 295 kg (650 lb)

Gross weight: 472.5 kg (1,042 lb)

Fuel capacity: 100 litres (22 imp gal; 26 US gal)

Powerplant: 1 × Rotax 912ULS four cylinder, liquid and air-cooled, four stroke aircraft engine, 75 kW (101 hp)

Performance

Maximum speed: 260 km/h (162 mph; 140 kn)

Cruise speed: 200 km/h (124 mph; 108 kn)

Stall speed: 65 km/h (40 mph; 35 kn)

Rate of climb: 5.5 m/s (1,080 ft/min)

Wing loading: 39.6 kg/m² (8.1 lb/sq ft)