Viper Hovercraft


The Carbon Fiber Viper 4XR is the flagship in the our four person range providing the ultimate in performance. The overall finish and fitment is beautiful.

The Viper 4XR has the highest power to weight of any hovercraft in its class while maintaining a strong durable design. This model has exceptional responsiveness, stability and overall performance.

The Viper 4XR is made from Carbon Fiber and further reinforced with ballistics grade Kevlar. Only the best high end fabrication techniques and resins are used throughout the manufacturing process.

The Viper 4XR features plenty of exposed carbon fiber while still maintaining a durable, high quality gel coat finish where necessary.
The Viper 4XR hovercraft is fitted with worlds best 100hp, 3 cylinder, water cooled two stroke engine. This engine is commonly used in small helicopters and light aircraft. This engine is the most suitable 100hp two stroke engine on the market for small hovercraft. The engine is light, quiet, efficient and has exceptionally long engine life.

Like all our models, the Viper 4XR is easy to fly and requires very little power to maintain cruise speeds in windy and choppy conditions.
Viper 4XR features :
•  Capacity to seat four adults and gear in comfort
•  Enclosed electrical and engine air-intake filtration system
•  Externally vented and removable aluminum fuel tank
•  High gloss, marine grade gel coat finish
•  Tooth belt drive system with torsional dampener
•  Large storage capacity
•  High buoyancy capacity

Construction Detail :
•  Hand laid Vinyl Ester/CSM/Woven cloth Foam composite hull and components, with localized Kevlar reinforcement.
•  High performance, chemical resistant, Vinyl Ester based marine grade gel coat.
•  Carbon Fiber Dash
•  Carbon Fiber control vanes
•  Carbon Fiber elevator vanes
•  Carbon Fiber flow straighteners
•  Galvanized engine frame
•  Aluminum coated exhaust system with silencer and more

Attachments :
•  Larger splash guard wind shield
•  Forward and rear deck cleats
•  Forward tow point
•  Gunwale to provide Impact protection
•  Elevator trim system
•  Flow straighteners
•  Auto bilge pump (500gph)
•  Orange strobe light
•  Cockpit hand rails
•  Deck and floor anti-slip finish
•  Quality coated nylon skirting

Dash components :
•  Tachometer
•  Hour meter
•  Fuel level gauge
•  Voltmeter
•  Temperature gauge
•  Choke control (on handle bar)
•  12 Volt external outlet

Standard inclusions :
•  Operator manual and log book
•  15 spare skirt segments
•  Spare ignition key

Options :
•  Oil injection
•  Fuel injection
•  Forward compartments
•  Forward foot wells
•  Navigation lights
•  UHF marine radio
General Viper 4XR
Seating 1 crew, 3 passengers, Inline
Length 4.25 m (14 ft)
Width 2.2 m (7.2 ft)
Height 1.5m (4.9 ft)
Weight (dry, no options) 245kg (539 lb)
Payload 400kg (881 lb)
Hover height (avg) 240mm (0.78 ft)
Positive Buoyancy 780kg (1,720 lb)
Fuel capacity 30 L (8 gal)
Thrust (Approx) 140kg (309 lb)
Speed - smooth water 80kph (43 knot)
Speed - ice 110kph (59 knot)
Ideal Cruise speed 30 - 50kph (16 - 26 knot)
Endurance @ Cruise 2.5 - 3 hours (12.5L a/h avg)
Noise 72db @ 30m (full power)

Engine Viper 4XR
Capacity 939cc
Type Water-cooled, three cylinder, two-stroke
Power Hirth 74 kw (100 hp) @ 6,000 rpm
Fuel 95 - 98 Octane unleaded 2% oil premix
Ignition Dual sparkplug per cylinder
Starting Electric start
Generator 12V DC 30amp = 250 w
T.B.O. 900 - 1000 hours
Drive system HTD Tooth belt via torsional dampener
Propulsion Integrated thrust and lift

Viper Hovercraft
Viper Hovercraft
Goulburn. N.S.W. 2580 Australia
  +61 418649350

© 2018 Viper Hovercraft