Yes it is sold by several vendors cermark.com,greenmodels.com and maxfordusa.com all the same Co. it's a nice engine 26cc with electronic ignition, and lighter than the G 20 36oz total.The Hellcat is a 1.20 size plane so a G20 should work fine,but the price for the SPE. was only $250 with shipping they are a little more now but still a great buy.It will turn a 16/8 around 7800 rpm As far as the CG goes there were a couple of posts in this thread that thought it was not correct,I thought I had mine set just right using the range from the manual, but I was using a G.P. C.G. machine and I don't think I got a accurate reading. It took off just fine but after that it was a losing battle. The tail just mushed down and even full down trim didn't help.She snapped out on me trying to come around for a turn and into the trees she went. But I recovered all the parts and there was no damage to all the radio or engine so I'll try it again.