Did some work on the bottom hatch cover. The purpose is the close the big open area at the bottom while still allow air flowing through the battery.

The original cover was cut into two pieces at the middle. The front one is removable via two nylon screws and is removed to mount/unmount main battery pack, or to take out the lipo rx battery for charging (Thunder Power 480mah Pro Lite weighted at 1oz!). The rear cover is installed most of time via four screws. Because the motor produces so little vibrations, there is no need to lock-tigh these screws.

A cut of 2"x2.5" was made on the front cover to facilitate air flow and for the ESC cables and control wires to enter the fuze. The area of the cut seems adequate for flying at 80 degree of weather (yes, we have been flying in 80 degree perfect weather in Texas in in Feb 2011!). Some adjustment may be necessary if the heat from the battery becomes an issue during summer time.