Aeroplane construction and operation; including notes on aeroplane design and aerodynamic calculation, materials, etc. A comprehensive illustrated manual of instruction for aeroplane constructors, aviators, aero-mechanics, flight officers and students. Adapted either for schools or home study (1918)
Rathbun, John B · Chicago : Stanton and Van Vliet Co. · leaf 16
laced. At this point it rests, or is inequilibrium. The flotation of such a device is entirely dueto static forces and hence (1) is often called an aerostat. The sustenation of a Heavier Than Air Machine is dueto an entirely different application of forces. Forces inmotion (Dynamic Forces) are… … o = ^ S ti: o := o 10 AEROPLANE PRINCIPLES Dynamic flight is obtained by an apparatus in whichan arrangement of surfaces are moved in such a way asto cause an upward component of the forces generated bythe impact of the air on the surfaces. The surfaces drivethe air down and when the force…
Airplanes
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