Watch the carbon fiber canopy at 1.5 grams. Gear transmission is still 2 stage. Blue spots are the two 2.7 gram WES servos. To the left of the mast and above the motor is the reworked Piezo Gyro. I drilled holes in the PC board, changed components with lighter ones and ended up at 4.7 grams.
Whole frame is still in carbon fiber.
I made them in different thickness. Handling is easy, can be cut with hobby knife, or even scissors. Got very good service . My second pack are Sanyo cells from WES, and they work equally well. You can see all the cables go to one spot under the canopy.