. The aviation pocket-book for 1918; a compendium of modern practice and a collection of useful notes, formulae, rules, tables and data relating to aeronautics . (alternative.) 270 SCOUTING AND SIGNALLING [div. X of the large soaring birds are difficult to distinguish at considerableheights, owing, undoubtedly, to the natural colourings of theunder surfaces of their wings and bodies ; though, on the otherhand, they often become easily visible when the} circle and cantup, thus catching the reflection of the sun. DISTINGUISHING FEATURES OF AEROPLANES Probably the best way to ascertain the partic
. The aviation pocket-book for 1918; a compendium of modern practice and a collection of useful notes, formulae, rules, tables and data relating to aeronautics . (alternative.) 270 SCOUTING AND SIGNALLING [div. X of the large soaring birds are difficult to distinguish at considerableheights, owing, undoubtedly, to the natural colourings of theunder surfaces of their wings and bodies ; though, on the otherhand, they often become easily visible when the} circle and cantup, thus catching the reflection of the sun. DISTINGUISHING FEATURES OF AEROPLANES Probably the best way to ascertain the particular type of amachine is, in the first place, to notice whether or not it is a tractorbiplane with a single engine. If it is not, it can be quickly placedinto a comparativeh small class, which comprises pusher biplanes,multi-airscrew machines, monoplanes, and triplanes. Purely ex-perimental machines must be omitted for the time being, as theycan hardly be called types until considerable numbers are in use. Pusher Biplanes.—The , , all havea small triangle above the elevators and tail planes. The tail boomstaper into a vertical knif
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectaeronautics, bookyear
