Hovercraft Plans


The Viper Cruiser was originally designed in 1996 as a light offshore performance cruiser. The design has evolved over 30 years and still remains the most advanced small plywood kits on the market.

The Viper Cruiser design, flows through all the present Viper production designs. Simple, easy, practical hovercraft offering outstanding performance and safety. It is a high performance design, yet is simple and inexpensive to build.

Viper Cruiser is designed for the "do-it-yourselfer" who would like to build his own hovercraft, but buy the current technology kit parts that can be too complex to make, such as the fan duct and drive system.  Basically, your are building a plywood, foam sandwich version of our early Viper 4 model hull, using the same power module components that we presently use today.

The Viper Cruiser builder makes the hull from marine plywood using a traditional "stitch and glue" method. There are no stringers or complex internal structure. This light weight design, gets its strength by using a foam sandwich technique and integrated foam buoyancy. The hull is surprisingly light, but very strong and safe.

The Viper Cruiser plan/assembly manual explains in a step by step process how to cut out, assemble and fit out a Viper Cruiser Hull. The manual is written in layman's terms and includes hundreds of drawings to assist each stage of the build

The Viper Cruiser is a Plans/Kit Hovercraft. It is supplied as Plans and Kit components. More information about the plans and kits can be found on the above links.

Engine choices

The standard Kit engines are either a 64hp, water cooled 582 UL-99 Rotax or a 65hp, air cooled 3203V Hirth, You can alternatively use a variety of new or used engines ranging from 35hp to 100hp. These include but not limited to:

  • All Hirth 2, 3 or 4 cylinder engines from 40 - 100hp
  • Rotax 447 to 583 two cylinder engines
  • Most Yamaha, Rotax and polaris snow mobile engines
  • Subaru 1600cc to 2200cc (decreased payload capacity)
  • VW (early) 1600cc to 2000cc (decreased payload capacity)
  • Vanguard or Briggs and Stratton 35hp (decreased payload capacity)

Viper Cruiser Hovercraft


To meet the builders personal needs, the Viper Cruiser can be extended to cater for additional payload. The design can also be adapted to incorporate separate lift by using our optional lift and thrust duct kits.

Viper Cruiser Features

  • Capacity to seat four adults in comfort
  • Simple to build
  • Strong, lightweight, Epoxy/Plywood/Foam sandwich construction
  • Significant positive buoyancy
  • Enclosed electrical system
  • Enclosed and vented fuel system
  • Individually pressurized extended segment, skirting
  • In-line seating with simple handle bar controls
  • Excellent driving position with easy control of pitch and roll by weight shift
  • Single engine and fan, providing integrated lift and thrust
  • Simple power module containing the engine, transmission, fan, duct and rudders as a single unit
  • Sealed engine air-intake filtration system

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