TAYLOR MODEL BASIN—HOWARD 245 
mits speed control within plus or minus ¥% percent. Air velocities can 
be varied from approximately 10 to 220 miles per hour. Six precision 
scales automatically record the three moments and three forces on the 
model. A seventh scale records the wind velocity. 
Airplane models up to 8-feet wing span can be tested both for normal 
performance characteristics and for stability in yaw; two separate 
systems for supporting the model are used for these two types of test. 
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Figure 1.—Chart showing the organization of the David W. Taylor Model Basin. 
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At the present time tests for the Bureau of Aeronautics are still 
carried on principally in the old wind tunnels at the Washington Navy 
Yard, but within a short time the new tunnels will be actively 
operating. 
The organization of the Taylor Model Basin is shown on the chart. 
Rear Admiral Herbert S. Howard, U.S. N., is director; Capt. Harold 
E. Saunders, U. S. N., who laid out the establishment and was in 
