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Thread: FM vs. PCM
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Old 07-18-2003, 11:11 AM
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Jim_McIntyre
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Default FM vs. PCM

Originally posted by beepee
There is no position to which you can program your flight controls that will save your bacon even a majority of the time....
I was hoping to stay out of this round of ppm vs pcm but here we go again.

fail-safe is not about saving the plane, it's about saving potential victims of the plane by preventing a flyaway and reducing impact (throttle to idle/cutoff).

If I'm not in control, I want my plane on the ground, within the safe confines of the field, not in the windshield of some poor sole on a local highway.

my fixed wing fail-safe settings:
throttle to idle, sticks to the corner
reasoning
reduce impact and distance travelled

my heli fail-safe settings:
- throttle to idle, all other controls on hold
reasoning
best chance of decaying headspeed (inertia) before impact while limiting distance travelled.

I am just not sold on PCM default programming as an answer.
If you choose not to decide, you still have made a choice. If you fly pcm and don't program fail-safe, you've chosen HOLD (default). This is the most likely decision to result in a high speed straffing of innocent bystanders.