Thought the quad folk would love this video.
https://youtu.be/Cew5JF8q6eY
Very well done. Nice explanation of the principles.
That’s pretty cool, and it gave me an idea to make an Osprey type system. Using a servo with a bell crank, go from vertical top forward motion. If the servo is fast enough, I might not lose a ton of altitude or have to slowly transition the nacelle top get lift on the stubby wing
There is more interest in this post than I expected. Here’s the continuation where he explains the stabilising effect of ducts for ducted props/fans in forward speed hover. Awesome. https://youtu.be/0stl1U9evzU
Thanks, I was just sketching up some ideas when I remembered to look for follow on videos. My mind is a flutter with ideas…
Something to note is that the troubles he mentions in the 2nd video about not achieving fast forward speeds should disappear with multi-rotors the further from the CG the lipped ducts are. When the rotors are distributed, the pitch moments from thrust would swamp out the Coanda effect. It’s mainly a problem for single central hovering Coanda lipped ducted fans. Or so I theorise. 