Gasser

From RC Helicopter Wiki

A gasser is a helicopter that uses an internal combustion engine running on regular gasoline (petrol, motor gasoline or aviation gasoline). Typically these are two stroke engines, and so must have lubricating oil (usually bought seperately) mixed in with the fuel, unlike nitro fuel which usually comes premixed with oil.

Gasser engines are spark ignition, with the spark either coming from a magneto (generator) attached to the crankshaft as part of the engine, or by using electronic ignition with power supplied by an external battery.

Gasser engines run substantially slower than nitro engines, and so require a different gear ratio to drive the main and tail rotor. Gasser engines are typically heavier and create more vibration than an equivalent powered nitro engine, but the fuel costs are drastically less than a nitro.

Gasser engines often do not require a starter motor, instead using a pull-start (recoil starter) than can be unclipped when the engine is running. This helps keep the equipment needed at the field to a minimum. Some users run a small generator off the engine to charge their flight pack and so do not even need to charge the avionics battery!

Contents 1 Engine manufacturers 2 Engine modifiers 3 Helicopters 4 External links

[edit] Engine manufacturers

• Zenoah.

[edit] Engine modifiers

• Hanson
• Toxic Racing Motors (TRM).

[edit] Helicopters

• Maxum;
• Miniature Aircraft Spectra G;
• Century Predator Gasser & Condor Gasser;
• Bergen Intrepid Gasser (& variants);
• Hirobo Lama;
• JR Ergo Z230.
• Vario XLV Benzin;
• Vario mechanics for various gassers.

[edit] External links

• Vario Benzin review on Rotory.
• 'Jewel' generator.
• Stator Gator engine tacho, for use with a governor.