URES 67

for How lift, drag, thrust and weight forces affect airplanes in flight; how balanced 41 forces maintain flight at constant speed, straight and level, and equilibrium in gliding attitude. co- 7
Complete catalog record
Series: How an Airplane Flies Series No. 4
Type: Motion Picture

Sources

  1. 3434 U.S. Government Films — title, year, creator, length, format, description, catalog record