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DeveloperPermalink Reply by Michael Oborne on April 22, 2012 at 4:04pm

failsafe on arduplane is programaable. on ac it is not, please read the wiki

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Permalink Reply by Richard Green on May 28, 2012 at 1:04pm

for "failsafe" please be aware of current caa legislation : 

Chapter 5 Safety Considerations

1 Any Model Aircraft Flying
First
Choose an unobstructed site and at all times keep a safe distance from:
• PERSONS
• VESSELS
• VEHICLES
• STRUCTURES
Only Fly
• In suitable weather.
• With regard for any other conditions such as local bye-laws.
• With due consideration for other people and property.
• With the model in direct unaided visual line of sight at all times.
• If reasonably satisfied that the flight can be made safely.
Failsafes
Any powered model aircraft fitted with a receiver capable of operating in failsafe
mode should have the failsafe set, as a minimum, to reduce the engine(s) speed
to idle on loss or corruption of signal.

This is straight from the horses mouth : http://www.caa.co.uk/docs/33/CAP658.PDF (admittedly the UK version) so just be aware that even if it isn't the best thing to do, you will be in legislative breach if you don't abide by this.

Saying that, at the beginning it says "this doesn't apply to UAVs" and a few pages later is says "this has been reworded to include UAVs".

I am not a lawyer ... so make of it what you will..

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