small gas engine

[ThePig0079]

I am new to this hobby and just a question.
Just wondering. How small of a gas engine does someone make?
Also are nitro engines better at keeping a constant headspeed?
What are the pros of a gass heli besides fuel cost.?
Does the gas give you more torque, I am just wondering

Thanks

ThePig0079

[WayneBrown]

the smallest I've seen for model use is a 23cc engine, they have a lot of torque, but it's heavier than the same glow (power) equivalent. If you want gassers, go for the bigger names like Vario, Bergen or Miniature Aircraft. Expect to pay a premium price as they are premium quality machines.
Unless you have the knack for tweaking curves, the engines will require a governor and stator gator.

[mike5334]

I've seen a manufacturer convert the Zenoah 20CC engine for heli use. Uses the electronic spark system too.

[MarkD]

There is spark ignition petrol engine pictured on this Months BMFA News. It's 1.3cc (0.08 cubic inch) and was built by Hallam Engines, Poole Dorset UK circ 1938

Be it a Free Flight engine and not heli - but it's still small :glasses2:

[Laurens]

Webra has a 15cc gasser engine but its reported to have some problems.

I'd buy a MA or Vario heli as gasser. Both are $$$$ and high quality.

[ThePig0079]

i also so something about conversion your os engines to desiel. I am learning something everyday. :smokin: :noteworthy