I bought this and built it to add to my box of B6-4 Field rockets, the ones that can fly in less than stellar conditions on days when I feel like flying despite the weather. I'm not going to claim that I can throw it as high as the mini engine takes it, but only because I'm pushing 60 and my throwing arm has seen better days. I would consider flying this from the back yard on an A3-4T or A10-3T without blinking an eye.