I Dont know but 48 inch wingspan is not that small ,thought about making it electrict but sinse they stopped making the kit 30 years ago there are others looking for one. here are a couple pictures let me know if you want any more . Been a while since i took pictures and got them on my pc so iam a little rusty in my old age .lol smaller kits under it will be forsale soon after i go through them and try to figure out a cheap price on rubber band kits, joe