Shear Pins for Propellors?

Heh heh...

I once had a car where the rev-limit function was built-in to the fuel pump relay and it had a design quirk. Once the RPM
limit was exceeded, the fuel would be cut off but only after a short time delay. So the effective limit was 6100 plus
however many RPM you could get in about 1/2 second!

Eric Law


"Eduardo K." wrote in message ...
In article ,
EL wrote:
In addition to the points made by others, let me throw this out:

Suppose the prop strike occurs when the engine is set to high power
(maybe not the most likely scenario but quite possible).
The prop makes contact with something and the pin shears. At that very
instant, the engine is set to high power but now has
no load on it. With no load, the engine will speed up a lot - way past
redline. A likely outcome would be pistons,
connecting rods, and parts of cylinders/heads flying out in all
directions, possibly followed by fire - considerably more
damage than from a normal prop strike!


The engine's ECU should take care of that. (grin


--
Eduardo K. |
| "World domination, now"
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