Can you make a plastic model airplane into RC?
#6

I did try it once. The main problem you're going to face is thrust to weight and poor aerodynamics.

1. The model is already fairly heavy due to all the plastic. (aerodynamics)
2. There isn't much room in a plastic model for servos, batteries and radio gear. (weight again).
3. You'll need engines strong enough to get it into the air (weight again).

I was able to get an old Revel B17 into the air as a flying model, but not as an RC (I used this particular model due to its size and wing area). I used 4 brush-less electric motors powered by 3 watch batteries each. I used an exact-o knife to cut away the rudder and elevators and replaced them with ones I made from balsa and a small hinge. I used electrical wire soldered to the hinge so as to set them.

The whole thing worked o.k. The plane made it into the air about 3-5 ft before keeling over and careening into the ground. My inexperience with flying models at the time was revealed in a brutal fashion as my model was obliterated on the pavement. I learned that I had failed to take into account the different rotational speeds of the engines causing too much yaw. That coupled with the poor flight characteristics of a plastic box model, made it's flying debut rather short.

If I had added the extra equipment to make it R/C, it would have been completely non-flyable all together.

Good luck with your endeavor and let us know how it works out.

S!

Though I fly through the valley of death, I will fear no evil.....
For I am the meanest SOB in the valley!

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