Bill,
>
>Yep. RED Loctite. Guess why the capital letters. Whenever I get a new
>engine I always fiddle with the fit of the throttle plate and the size of
>the by-pass hole until I can get the thing to shut off with the throttle
>kill on the TX. I've seen too many people have to chase their aircraft to
>flip the ignition kill switch.
>
Which of course is why you should have two ignition kill switches, one manual and one activated by the throttle linkage closing.
RAM makes a decent electronic switch with a 20 A relay that can deal with _any_ ignition circuit.
See
formatting link
FWIW. Cheers, Fred McClellan the dash plumber at mindspring dot com AMA L180201 IMAA LM 090 NASA 6512 LHA 3
Gosh Fred, ALL my gassers (and glow for that matter) can be killed MECHANICALLY with the throttle servo. That way I am NOT dependent on electronics to kill the engine. I think that counts.
It counts for nothing in a decent safety inspection.
Shutting the butterfly and hoping the engine finally stops is insufficient. Killing the ignition is explicitly required.
That's because throttle servos have been known to fail, throttle linkages have been known to fail, and flight packs have been known to drop dead.
Engine shut-down authority must remain available at all times, and that requires an means independent of throttle to shut down the ignition on gas engines.
The respondent made the point that he has seen modelers have to chase their model to get at the external ignition kill switch.
I pointed out that addition of a receiver-driven ignition kill switch eliminates that problem.
I didn't say not to make sure the throttle is mechanically closed. Only a moron would fail to make sure the carb butterfly closes fully.
Being the moral guardian of international aeromodeling that you profess to be, I'm surprised that you have never witnessed an engine continuing to run _even though the carb butterfly is fully closed_.
You of course can do what you want, but IIRC it was you who couldn't recognize a Zenoah G-62 in a photograph, and decided the photo reflected a 'mess' when in fact that 'mess' is a Reeves reduction drive unit.
Then again your penchant of contradicting everything I ever write is running true to form, so I'm not at all surprised that you would argue against implementation of an inexpensive and thoroughly reasonable SAFETY item.
Now crawl back under your rock, shitferbrains. Cheers, Fred McClellan the dash plumber at mindspring dot com AMA L180201 IMAA LM 090 NASA 6512 LHA 3
PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.