Gooney Bird Drone
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GB Build Blog

Test Hops

4/10/2020

1 Comment

 
Not too much to report.
  • The stock GF30 fuel pump was working, but it's a bit intricate and fragile so I designed and prototyped a CNC aluminum fuel pump. It is based on the diaphragm membrane from a WYB carburetor. It works!
  • The new engine (GF30 II) has been integrated and is undergoing testing on my test bench.
  • With the stripped down fuselage hard mounted and the engine installed, vibration was fine in the X and Y directions, but a little excessive in Z. I need to test with the full airframe assembled and unconstrained to figure out if this is a real problem or just a result of bad fixturing.
  • I needed to record a quick "win" so I put the wings on and did some more VTOL testing. It was the first time I used altitude hold and there were no problems.
  • Progress is slow as I've only been able to devote about 4 hours a day on the project.
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    Author

    Rob Coatney is an aerospace engineer in Washington state. In his spare time, he is working to set new drone flight endurance records!

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