Flying machines: practice and design. Their principles, construction and working (1909)
Kennedy, Rankin, d. 1917 · London [etc.] : The Technical Publishing Co., limited · leaf 24
CE AND DESIGN. 9 language, is six to one or one in six, which means that travel- ling up the plane a body would be raised I ft. in 6 ft. travelled. The angle <>, formed by the sides P A and A Q, is called the angle of the plane, i.e., the angle which the plane makes with its line of flight. The… … FIG. 4. — Triangle of Aeroplane. In the example where P O . = i, then 0-166 is sin a. Practical planes vary in inclination from i deg. to 14 deg. for angle a. We have only to look up a table of sines, etc. to find the value of sin «. or tan «, which we may use to find the lifting power of the…
Flying-machines · Aeronautics
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
