Three years after starting this project and I finally got the maiden flights in. First flight was on 3 D12-5's and was expected to be about 564' according to the simulator tests I ran. When the launch button was pressed all 3 motors roared to life and she left the pad on a column of smoke. I estimate it reached about 550' more or less.  Parachute deployed at apogee and rocket started a long descent drifting with the wind and landed halfway down range. Recovery was made after range opened and rocket was recovered with a small ding to one fin tip. No other damage was noted and rocket was taken back to table and prepped for next flight.