适用于GEPRC Mark4 HD5机架的DJI空气单元支架和天线保护器，V2

This is an improved veion of the tail and air unit holder for the GEPRC Mark4 HD5. Improvements:
Zip tie lugs eliminated so larger props are possible
Tail is held from bending back by top plate.
Base of antennas reinforced at breakage points.
Zip tie holes added for optional prop guard attachment.