DC Motor and Gearing

[Dad1279]

Having flown gas models in the past, I think you will find the starter motor required to be too large. Since you only need a few revs to start the engine, perhaps a smaller motor to wind a spring, with a latch to release. (like the old .049 airplane engines)

[colin340]

is this for in air starts :ie it fall out of the sky o no or main starting
i've really been thinking about this and if you looking for emergency restart
a explosive charge or small pneumatics (co2) cylinder it would be lighter but it's wayyy out there

[DonRotolo]

Originally Posted by colin340

if you looking for emergency restart
a explosive charge or small pneumatics (co2) cylinder it would be lighter but it's wayyy out there

Alternatively, a LARGE explosive will prevent the aircraft from hitting the ground and breaking...

pretty spectacular, too. Not Recommended.

[Red-Rx7]

Originally Posted by Don Rotolo

Alternatively, a LARGE explosive will prevent the aircraft from hitting the ground and breaking...

pretty spectacular, too. Not Recommended.

While this sounds fun, it isn't what I would like to use it for! I have too much $$$ invested to have it go "bang".

If the engine were to fail during flight, I would hope to have enough head speed that I could autorotation to the ground safely.