Wind tunnel model used to test rotor system configurations
Wind Tunnel Helicopter Model Used by Boeing to Test Rotor System Configurations.
A helicopter model which can be adjusted to hundreds of different rotor and fuselage designs is being used in Boeing's new V/STOL wind tunnel at the Vertol Division in Philadelphia.
Test data will be used to develop future Boeing helicopters including growth Chinooks and heavy lift helicopters.
Different configurations are achieved by adjusting aft pylon height and fuselage length, and by varying rotor hubs, blades and fuselage shells.
The top photo shows the test model configured as a CH-47C Chinook.
Bottom photo shows the model without a fuselage shell.
Boeing photo. From Vertiflite (Verti-Flite) Apr 1969.
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