Please don't take this the wrong way. Ideally, a .40 size model made from EPP, rubber band on wings and an engine mount that would pop off if hit to hard. A replaceable corroplast tail section and no landing gear. Wingspan about 48" to 54" and an 8 to 12 oz. fuel tank to allow for some long flights in the 12 to 18 minute range. A buddy box along with an FMA Co-Pilot system to aid in training. Tons of cheap replaceable parts. Ideal!