I have to agree Electrics are a good starting point. I have a Mini IFO my father in law was over a few weeks ago. The winds where calm and I wanted to fly so I asked him if he wanted to watch he agreed and we went to the back yard. I flew it for a while and asked him if he wanted to. He said he was afraid of crashing it and breaking it. I let him know it was about as un breakable as a plane could be. He flew and crashed and flew again he is in his 70s he had a great time. After a few batteries he flew it into the pave stone wall beside my house. The stone cut the front bow. My father in law apologized several times for breaking the plane. I told him to stand still and I would be back. I grabbed the ca and my my magic dental floss and he was flying again in two minutes.