Here is a yet another collection of tech papers, however, in this time in a quite hand-picked manner - those most interesting ones (Voyager liquid cooled engines, Rotary engines, three lifting surfaces papers etc.):

http://www.protonet.org/doc/

Go to get them, good stuff.

I recorded this highly interesting presentation at Oshkosh 2019. John Roncz is telling inside story what happened with various designs he had teamed up with Burt Rutan. Link: http://youtu.be/E9eEwyVrAps?hd=1

I also had a chance to record the speech of John Roncz at Airventure 2019. John Roncz Presentation Airventure 2019

I recorded Dr. Pete Gall's presentation at Oshkosh 2019 about Designing Light Aircraft. This presentation explains with a case example of Beech Bonanza how the wing affects the drag of the whole aircraft. In the presentation a new more efficient wing is designed for the Bonanza and the results are compared to the original aircraft. This presentation is rather interesting and worth to watch. Pete Gall's merit list is rather long (see the end titles from the video). Here is the link to the event recording I made: YouTube: Dr. Pete Gall: Designing Light Aircraft. Oshkosh Airventure 2019

Someone was lucky in Oshkosh and took this short video clip from inside the Boomerang while it was doing takeoff. I find it rather interesting, especially because I am interested how this kind of window layout works. Here is the clip from some lucky person who got as a passenger to the plane: http://www.youtube.com/watch?v=QD8Cz0Sw44Q&feature=related