Currently there are no retracts for weight considerations. I have made a dolly that has steering and is just for takeoff. It will be interesting to see if it works. I have purchased two Apogee 3S1P 2080mah packs and will wire them in the 3S2P config. That will push the overall weight just over 2lbs. At 300+ watts that should perform well. The hatch is fiberglass with a foam core and there is a lip on the front and two neodyum magnets on the back. This makes for a clean look, we will see if it stays on inflight. There is a picture of the aluminium tool that was used to make the exhaust duct. The test flight is scheduled for later this week, finally! What are you ideas for a scratch built project flydrive rc?