Ludwig Prandtl 1933 Math. Prandtl-D, NASA, Albion Bowers Wing. 3D Printed. Rubber Band launched.
Hey Guys! highly recommend reading this paper. and checking out what kind of work has been done on this over the last 9 years or so.
https://ntrs.nasa.gov/citations/20160003578
https://www.nasa.gov/centers/armstrong/news/newsreleases/15-24.html
https://www.nasa.gov/centers/armstrong/news/FactSheets/FS-106-AFRC.html
Original model here: https://www.amaflightschool.org/PRANDTL
if you want the model i cut up… let me know. ill upload it some where…
https://ntrs.nasa.gov/api/citations/20160003578/downloads/20160003578.pdf
http://airfoiltools.com/airfoil/details?airfoil=prandtl-d-root-ns
http://airfoiltools.com/airfoil/details?airfoil=prandtl-d-tip-ns
more links:
https://forum.flitetest.com/index.php?threads/nasas-prandtl-d-flying-wing-no-vertical-surfaces-with-no-control-problems.26122/
550mm sliced model:
https://grabcad.com/library/prandtl-d-3-sliced-1
Thanks!
God Bless!
~Russ