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 46
of their own lines, new trench systems canbe constructed, transportation lines can be extended andammunition dumps arranged, undertakings that wouldbe highly precarious with enemy observation machinescontinually passing overhead. To maintain an effective oftensive places a tremendousstrain on both… … Fig. 1. Italian Pomilio Two Seater Biplane. Courtesy Flying. attack over hostile country a slight mishap may causethe loss of a plane, for usually the distance from its baseis so great as to prevent a gliding return. Over its ownlines an engine failure is usually only a temporary incon-venience.…
Airplanes
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
