Gliding eLazair4 to a Touch and Go and more скачать в хорошем качестве

Gliding eLazair4 to a Touch and Go and more

The two things that I wanted to accomplish on this flight were to do a touch and go from a gliding final leg and to try to use reverse thrust during my last gliding approach to the landing at the end of the video. The touch and go (starts at 6:45) went great but when I first tried to go into reverse thrust at 43 mph airspeed on my last landing in the video (starts at 28:38), all 4 motors did not synchronize to the start pulses from their controllers and none of the motors actually went into reverse. I tried again at 50 mph and 55 mph but by then I just decided I didn't need them to control my glidepath since the 55 mph airspeed did the trick. Lots of drag at that speed so my L/D was low enough. From testing at a high altitude I knew that the motors go fine into reverse thrust at 35mph and lower (due to a lower wind milling speed and torque needed to reverse them). I will investigate the max airspeed that, I can go into Beta at, in another flight at a higher altitude. If you watch closely on the last final approach, you can see the props try to go into Beta on those 3 attempts but do not start. Just a note about how the props are showing up in the videos. The camera has been either capturing at either 30 fps or 60 fps and the shutters speeds seem to stop the props on each frame. Since they are in a different position in each frame we see the strobing affect in the video. When I turn off the motors in order to glide the Lazair, the props do stop but then they immediately start wind milling in the forward direction very slowly (faster if I glide at a faster airspeed). If you ever see the props stationary while I am in the air you will know the rpm of the prop matches a by some factor of 30 rpm (likely 1800 rpm if the capture rate id 30 fps). You can see the props apparently stationary on my last approach the the final leg but they were not stopped they were going ~1800 rpm. Other than those two tasks which I set out to accomplish, the rest of the flight was just fun :) Please SUBSCRIBE (and hit the bell) to my YouTube Channel to be informed when I post future videos here:    / @daleckramer