Red

Introduction:

I created this to see if I could get something with prop guards but still retain efficiency with larger 2" props. I also inverted it to see if it would help with prop wash.

Components:

• LDARC GT8 frame
• Frsky xm+ receiver
• Teeny F4 pro 1-2s FC
• Super S 4 in 1 2s esc
• EaglePower SA1103 8000kv x4
• Generic NTSC camera
• Eachine VTX03S vtx
• Buzzer
• 2040 hulkie props (trimmed by 2mm)

Conclusion:

The dry weight came to 53g, which was higher than what I wanted. Unfortunately, my crazybee 2s board didn't come yet so if I were to do it again, I would definitely cut some weight by using that board instead. This build was more time consuming than I had initially planned. A lot of thought went into mounting the FC/esc. I finally ended up running some wires into the frame and using it to wrap the stack. it ended up working pretty well. Everything was made to be modular and removable including motors/cam/vtx. Unfortunately the hulkies were 2mms too long and had to be trimmed.

The indoor maiden flight left a lot to be desired since I have recently been flying the mobula7. The weight is what really killed it and using older GNB 450mah 2s yielded about 3 mins flight time landing with 3.8v. It also felt a bit heavy and could've used 10000kv+ motors instead. The worst part though, was the yaw drift caused by the trimmed props. I feel that they're trimmed correctly (I've used similar methods successfully with the 75x), but whenever throttle is applied, the yaw drift would increase proportionally with the amount of throttle applied. I'm going to have to switch out to different props and retry.

Update 1/10/19: Trimmed the props a bit more and got rid of the yaw drift. Flew it outside with a fair amount of wind and it was not a pleasant experience. With the large amount of surface area, it felt a bit like flying a parachute. It may be nice flying on a calm day though. Will need to see some other time.