I was looking on Thingiverse for a good model rocket to use but could not find any. This rocket is designed for 15mm engines like the C-6-7. It is very light and has a huge motor so you can expect it to go very far. I would suggest printing it in a bright color and using bird-be-gone as a streamer so that you can find it. I have not found any of the test flights yet so it might be good to use a lower power 15mm engine. I will update with pics in the near future.