The Champ is a good flyer indoors, but a better first plane for micro's to learn on is the Ember2. I've flown both indoors and found the Ember2 more versatile plane, and I feel overall a much better indoor flyer. I fly the Ember2 in a small church in an area with a 15' ceiling and a room that is about 75' X 50' with no problems at all. An armory should give you plenty of space if you don't have the experience. The Ember2 will fly a lot slower will make a good trainer.

I've flown the Ember2 outside in 3-4 mph winds and like any micro it gets bounced around a lot. When you talking a 1 ounce plane, especially without ailerons, 3-4 mph is a lot of wind for it (even my SU-26 doesn't like wind above 3 mph). On a day with some thermals and 0-1 mph I had repeated 20 min flights with a 1 min power up to start thermaling. I limited the flight time due to the small battery on the plane and didn't want a fly-away.

During a glide contest last fall I removed the landing gear from my Ember2, climbed to the ceiling above the lights which was maybe 75' high and had a power-off glide of 29 seconds. I'm also going to set it up on a buddy box to do some flight instructing in a high school gym.

Hogflyer