ORIGINAL: irocbsa
For those inquiring about the weight of the system, the starter, battery (3S 1700 mAh), and relay added 1.1lbs to the nose of my ESM Fw-190. That allowed me to remove all of my ballast so it was a net weight gain of about 1 oz in the nose.
If you don't want to pay $30 for that controller, it's easy to rig up a system using a switch and an SPDT relay that will cost you all of $5. That's what I did since when I bought mine they had not release the controller yet.
Cheers to the OP for the nice write up!
I want one of these for my TF GS P47, are you able to energize the SPDT relay to start to motor from your transmitter, or is it a physical on/off switch on the plane?