Douglas Project 9 Tailless Bomber Design of 1938
Tue Mar 13, 2012 11:30 am
A new article reproducing a 1938 wind tunnel test report on the Douglas El Segundo Division Project 9 tailless bomber design is now up at RetroMechanix.com:
Project 9 was likely designed (or heavily influenced) by Jack Northrop, who would leave Douglas and form his own independent company the following year. The accompanying gallery features 19 images, with numerous high-res photos and drawings.
-Jared
Project 9 was likely designed (or heavily influenced) by Jack Northrop, who would leave Douglas and form his own independent company the following year. The accompanying gallery features 19 images, with numerous high-res photos and drawings.
-Jared
Re: Douglas Project 9 Tailless Bomber Design of 1938
Tue Mar 13, 2012 4:21 pm
As long as the owner is your friend and you can save money on basic wind tunnel time, why not? Models were hung upside down to balance generated 'lift' in a downward direction of the model against scales attached to the wires you see in the ceiling of the tunnel. 