You can learn 3d with a 40 size plane and a .46 2 stroke-- cost of plane and motor less than the cost of a Saito. I had a great time yesterday with a Burrito and a OS 50. It would be OK with a .46. I also fly a Mojo 60 with a Saito 91 which is better and worth the money to me at this time. If I were just giving 3d a try I would never go for a $250 engine that may nose in before it gets much time on it. I think telling a beginner the only way to go is Saito 100 on a 60 size plane may turn off people that could learn on something less expensive. One reply said that the power curve of 2 strokes make them not appropriate for 3d flying. That is not true. Some very good 3d fliers like 2 strokes better. Almost no one says they are not adequate. Most favor 4 strokes, but pay a price.

And a gallon of fuel lasts forever with a 40 size plane and a small 2 stroke when 3d flying. I get 10 minutes on 3 to 4 ozs of fuel flight after flight.