Here is a pic of my RE, I chose not to put the cheater hole in the bottom. I could just envision it sucking up something and destroying the fan, or worse. I have a hatch on the top. The hatch is the width of the fiberglass top piece, and long enough to get the fan housing out turned sideways. I had originally put a hole in the hatch for cooling air to the engine head, it wouldn't get up enough speed to lift off. I removed the hatch, and it went right up, so that is how I fly it now. Mine was an older kit, with fiberglass top, bottom & rear cone.