|First test frame designed for conventional brushed (Speed 700) DC direct drives.
||X-Copter v0 with Styrodur frame and brushed (Speed 400) DC direct drives.
||X-Copter v1 with carbon fiber frame, DC gear drives and piezoelectric gyroscopes.
||X-Copter v2 with shrinked carbon fiber frame, DC gear drives and MEMS sensors.
||X-Copter v3 with aluminium frame, brushless drives and MEMS sensors.
|H-Copter v1 with aluminium frame, brushless drives, MEMS sensors, GPS and LPC2148 controller.
||QR with DJI 450 frame, AGM MT2216 BLDCs, FVT LittleBee ESCs, MEMS sensors, u-blox GPS receiver, and dual NXP LPC2148 / TI OMAP3503 controller.