RE: Breaking in a new engine?
I use a tent stake and about 3 feet of heavy cord around the tail to run in on the ground. When you take it to the field, you throw the loop around the tail, fire it up till its warm, make any adjustments, go to the tail, pull the loop off, and she's free. Gives a bit of room to work around the ship also, and keeps you safe by yourself. It isn't a replacement for a good friend or fellow RC'r to give you a hand, but where I live, there are none.