Gamma2
high speed surface-effect craft

This surface craft is being built both as a technology demonstrator and as the first of our planned production units.

The Gamma2 type uses an air cushion plus the dynamic effects of speed; it may be operated on inland waters, rivers and estuaries, and slight seas. By lifting the craft mostly clear of the water, high speed is possible, in this case about 70 knots (130 km/hr) with two occupants.

Sport and commuter usage is envisaged. Costing about the same as a mid-range SUV, the Gamma2 will enable owners to travel rapidly between ports and islands within water based communities (where speed limits permit). The craft may be trailered.


Specifications (applicable to prototype #01)

Empty weight 545 kg 1200 lb
Fuel weight-max. 230 kg 500 lb
Length overall 4.4 m 14.4 ft
Width 2.0 m 6.6 ft
Height 2.3 m 7.5 ft

Accomodation 2 persons
Propulsion engine Mazda 10a twin rotor, 110 BHP
Propeller 71 x 30 inch timber, brass leading edges
Lift engine Briggs & Stratton 284707. 12 BHP
Lift fan Multi-Wing 29 inch diameter, 14 blade

Cushion area 6.5m2 70 ft2
Cushion height 0.3 m 1 ft
Cushion pressure-max 1440 Pa 30 lb/ft2
Maximum airspeed 130 km/hr 70 knots
Sea Condition Beaufort 2 maximum