Fabricated a carbon fiber main shaft for the 9958. Here’s the stock 9958 weight before and after the carbon fiber shaft upgrade.
The stock weight without the battery is above. The carbon fiber upgrade 9958 is the photo below.
The main motor has a lift of about 42g. So shaving a gram off the flight weight will allow the motor to essentially be 7% stronger. So it’s every gram counts with these micro helis!
Here’s a video with it flying. Unfortunately the battery was mostly gone by the time I thought of turning on the camera.