In a message dated 9/12/2006 9:22:23 A.M. Eastern Daylight Time,
eanderson@carolina.rr.com writes:
>>> Al Gietzen wrote:
>>>
>>>> I'd
say get a prop load on there, and adjust mixture, get some readout
>>>> of
>>>> what's going on. I don't
think you necessarily want the thing spinning
>>>>
over
>>>> 6000 on first startup
anyway.
>>>>
>>>
The formula for not being killed in a "fence post accident" is don't even
think about it.
Borrow a prop or buy a used airboat prop (cheap and plentiful). One lost
blade on a real prop can snatch an engine right off a mount, or the whole mount
right off an airplane. Hundreds of dead people have discovered just that.
When running a rotary unloaded, be very careful about blipping the
throttle. If you tachometer has no tattle tail, and you ignition system has no
rev limiter. You can destroy or badly damage your engine is just a wink. My
driver got one over 13,000 RPM, and discovered that it makes them smell
bad.
Until it is time to fly, spring load that throttle closed. If it CAN be
left wide open for start-up, eventually it WILL be left wide
open. (Murphy 1943).
Lynn E. Hanover
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