Gernsback, Hugo, 1884-1967, ed · New York : [s.n.] · leaf 9
ith quadrant and hand-screw slide at the altitude he is flying, taking a cal means and eliminating guess-work, as to keep it in the desired position or angle. sight along the hypothenuse formed by the there is only one aviator out of five hun- Figure 2. It is designed to have day lenses two bars of… … A Yankee Inventor Has Perfected the Simple Electric Bomb Dropper Here Illustrated for Use on Aircraft. The Aviator Checks up His Actual Flying Speed, Sets His Range-finding Telescope and Flies Over the Target. At the Proper Moment the Automatic Electric Clock Switch Releases the Bomb. provided with…
