>>> CeeGee, here's the hatch I made. The battery attaches to a raised platform on the other side, and the whole assembly is easily and quickly removeable

You get an A+ for making your battery removable. My planes don't usually outlast the battery though, so I just wrapped the battery with a layer of clear packaging tape, dribbled some epoxy down into the left side of the fuse, and slid the battery pack down into it, all the way to the former.

Now watch this battery be the only one I have ever had that goes bad!

I saw CeeGee's plane fly yesterday with the OS 70. It is very light and powerful, a real performer! Good looking too with the new red color scheme!

Ernie