thanks ya'll, i'll check the space under each wingtip..i dont think it is much more than 2 1/2, got me thinking about a couple of old mags i have out in the building room.....a jan 1962 model airplane news and a dec 1967 man.......neat looking thru them....electric free flight with a foam wing and one time use battery packs.....plane is a dollar and battery packs are 20cents each......oh, for those days.....but then i didn't even have 20 cents!!!!!!thanks to all for the help....bill w.