A .40 size plane with 56" W.S. The box was interesting in that it said the first airplane kit designed to be built in one week. It also stated anyone can learn to fly r/c on this plane. The plane came in 2 versions. Tricycle gear, or tail dragger. The only variation made to the kit was instead of soldering up the wire gear included in the kit, some aluminum gear was used. It is powered by a modern day Tower Hobbies .46 which will be significantly hotter than a 30 or so year old .40.