248с
1 bIM 3K3.
EVERYBODY'!^ 51 AVIATION GUIDE
A COMPLETE, SIMPLIFIED TREATISE IN QUlES^ TION AND ANSWER FORM FOR THOSE WISHING TO OBTAIN A GENERAL AND DIVERSIFIED KNOWLEDGE OF AERONAUTICS AND AERODYNAMICS
It considers all types of aircraft, both lighter-than-air and heavier-than-air forms, gives the principles on which their operation is based and describes construction of principal types of dirigibles and airplanes
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