Hydrocopter funDriving on ice, snow and water

Ralf Marquard

 · 12.04.2026

Hydrocopter fun: driving on ice, snow and waterPhoto: Hersteller
The larger model from Toivanen is 4.10 metres long.
The hydrocopter from T:mi Kyösti Toivanen is a snowmobile for year-round use on snow, ice and water and is available in electric and petrol versions.

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The hydrocopter is a work tool for use on snow, ice and open water surfaces. The vehicle enables movement in areas that are inaccessible to conventional means of transport.

Electric Frost Breach 370

The electric model 370 is 370 centimetres long, 150 centimetres wide and 45 centimetres high. The floor is made of aluminium with a plastic coating. The total weight is 150 kilograms. The vehicle transports up to three people. The EPG-21 engine generates 86 kilograms of thrust. A three-bladed carbon fibre propeller with a diameter of 140 centimetres drives the device. The lithium battery weighs 20 kilograms and stores 5 kilowatt hours of energy. With a full charge, the hydrocopter can cover around 20 kilometres, depending on the weather conditions.

In winter, the propeller motor steers the vehicle, while in summer an outboard motor can take over this task if required. Both drives can be changed quickly. The propeller motor is attached to the rear with two nuts, while the outboard motor mount also only requires two screws for attachment. Additional batteries are available as accessories. The 370 model costs 19,000 euros plus VAT.

Petrol Frost Breach 370

A 50 hp Hirth two-stroke engine powers the petrol-powered version of the 370 model. The total weight increases to around 200 kilograms, the dimensions correspond to the electric model. The price is 19,500 euros plus VAT.

Frost Breach 400-420

The new 400-420 model range offers larger dimensions. The width varies between 160 and 180 centimetres. There is a choice of three different Hirth engines: an air-cooled 50 hp two-stroke, a liquid-cooled 70 hp two-stroke and a liquid-cooled 100 hp two-stroke. The 100 hp model is 410 centimetres long and 180 centimetres wide. A three-bladed carbon fibre propeller transmits the engine power.

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Additional equipment

Various extras extend the range of applications. An outboard motor bracket enables summer operation on open water. The propeller cover protects the drive when not in use. Special aluminium rudders improve steering on frozen surfaces.

Technical data Electric Frost Breach 370

  • Length: 370 cm
  • Width: 150 cm
  • Height: 45 cm
  • Weight: 150 kg
  • Load capacity: 3 persons
  • Motor: EPG-21
  • Thrust: 86 kg
  • Battery: Lithium, 5 kWh, 20 kg
  • Range: approx. 20 km
  • Propeller: 3-blade carbon fibre, 140 cm diameter

Technical data Frost Breach 400-420

  • length (100 hp): 410 cm
  • Width: 160-180 cm
  • Motor options: 50 hp Hirth air-cooled, 70 hp Hirth liquid-cooled, 100 hp Hirth liquid-cooled
  • Propeller: 3-blade carbon fibre

Safety instructions and contact

T:mi Kyösti Toivanen, expressly points out that the hydrocopter is not suitable for children or inexperienced drivers. The operation requires knowledge of handling motorised vehicles on different surfaces. Interested parties can call +358 40 5886382 or send an e-mail to kk.toivanen@hotmail.com Contact us.


Ralf Marquard

Ralf Marquard

Deputy Editor in Chief BOOTE

Ralf Marquard discovered his enthusiasm for boating on the tranquil Aller, first with inflatable boats and later with a 6-meter cabin cruiser. His electrical engineering studies at HAW Hamburg took him from the southern Heidekreis (Lower Saxony) to the Hanseatic city. Ralf Marquard has been working for the BOOTE editorial team since 1997, where he trained as a test editor. He tests both small inflatable boats and larger yachts. His personal boat is a 4.50 meter long, self-built wooden boat with a 50 hp outboard motor. In 2007, he was appointed deputy editor-in-chief at BOOTE.

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