The last tricopter frame was really light. That was about the only good thing about it. The wood was brittle, and broke at the joint of the T a couple of times. It didn't take much to fix, but I wasn't pleased with how fragile it was.
So I made this strange skewy triangle of carbon fiber tube and acrylic sheet.
This makes the frame modular. It's easily taken apart and put back together.
ESCs - .70 oz
motor, prop, and arm - 1.3 oz
controller, sensors - .80 oz
top silver - Zippy 1250mAh 25-30C - 3.52 oz
yellow left - Rhino 630mAh 20C - 1.92 oz
bottom blue - Turnigy 1300mAh 40C - 4.20 oz
To put that in perspective, the frame (everything minus battery) is 6 oz.
I'll have to do some flight tests to see which one has the best endurance. There's a very clear difference in flight characteristics between them.