Ramphos Trident

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The Ramphos Trident is an Italian amphibious ultralight trike, designed and produced by Ramphos of Fontanafredda. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.[1]

Design and development

The Trident was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb). The Trident features a strut-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit with a rigid boat hull, retractable tricycle landing gear and a single engine in pusher configuration.[1]

The aircraft is made from bolted-together aluminum tubing, with its double surface wing covered in Dacron sailcloth and its boat hull made from either fibreglass or carbon fibre and Kevlar. Its 10.5 m (34.4 ft) span Hazard wing has struts and uses an "A" frame weight-shift control bar. The powerplant is a twin cylinder, liquid-cooled, two-stroke, dual-ignition 64 hp (48 kW) Rotax 582 engine or a four cylinder, air and liquid-cooled, four-stroke, dual-ignition 80 hp (60 kW) Rotax 912UL engine or a 78 hp (58 kW) converted Smart Car four stroke turbocharged engine. All engines are fitted with a clutch that stops the propeller from turning when the engine is at idle to permit water handling. The boat hull features a water rudder.[1]

Starting in 2005 the frame and wing portion of the aircraft was taken from the Skyrider Sonic ultralight trike.[1]

Variants

Hydro
Initial flying boat model that lacks wheeled landing gear. Introduced in 1998 and in production in 2013.[1]
Trident
Amphibious model with fibreglass boat hull, in production in 2013.[1]
C
Amphibious model with carbon fibre/Kevlar boat hull and lexan windows in the bottom of the hull to allow visibility downwards. In production in 2013.[1]

Specifications (Trident)

Data from Bayerl[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 10.5 m (34 ft 5 in)
  • Wing area: 15 m2 (160 sq ft)
  • Empty weight: 200 kg (441 lb)
  • Powerplant: 1 × Rotax 912UL four cylinder, liquid and air-cooled, four stroke aircraft engine, 60 kW (80 hp)
  • Propellers: 2-bladed composite

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 220. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X

External links

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