For a first engine and to train with you cant beat a TT pro 46. Tons of power, super easy to tune, runs great. Buy a tower muffler for it and it is an absolute beast. I have 2 gallons of fuel through mine and have yet to have a flamout or deadstick during flight (unless I ran out of fuel). It has a great low and smooth transition too. For the price and for a beginner it cant be beat!