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Thus there is an even greater tendency for it to become overheated; and the great problem which inventors of aeroplane engines have had to face is the construction of a light but powerful engine equipped with some apparatus for keeping it cool. Many different forms of aeroplane engines have been invented during the last few years.
It was odd to look at the little elderly lady, in her grey coat and skirt, with a sandwich in her hand, her eyes lighting up with zeal as she imagined herself a young man in an aeroplane. For some reason, however, the talk did not run easily after this, and all they said was about drink and salt and the view.
The appearance of the aeroplane was so terrifying to the islanders that he need fear no opposition to his landing. But the idea occurred to him only to be at once dismissed. When once among the trees, away from the aeroplane, he would be no longer sacrosanct.
Consequently, a mechanical method of launching had to be evolved and the machine received initial velocity from a rail, along which it was drawn by the impetus provided by the falling of a weight from a wooden tower or 'pylon. As a result of this the Wright aeroplane in its original form had to be taken back to its starting rail after each flight, and could not restart from the point of alighting.
When the R.F.C. was founded and in fact up to two years after its founding in no country were the full military potentialities of the aeroplane realised; it was regarded as an accessory to cavalry for scouting more than as an independent arm; the possibilities of bombing were very vaguely considered, and the fact that it might be possible to shoot from an aeroplane was hardly considered at all.
This meant that while a pre-war engine of 100 horse-power would weigh some 400 lbs., the 1918 engine developing three times the power would have less than double the weight. The result of this improvement was that a scout aeroplane at the time of the Armistice would have 1 horse-power for every 8 lbs. of weight lifted, compared with the 20 or 25 lbs. of its 1914 predecessors.
"Mont-Sir Lawrence, 9th Bt., cr. 1620, e. s. of Geoffrey, 8th Bt., and Lavinia, daur. of Sir Charles Muskham, Bt., of Muskham Hall, Shrops: marr. 1890 Emily, daur. of Conway Charwell, Esq., of Condaford Grange, co. Oxon; 1 son, heir Michael Conway, b. 1895, 2 daurs. Residence: Lippinghall Manor, Folwell, Bucks. Clubs: Snooks': Coffee House: Aeroplane. See Bidicott." "H'm!" he said.
Readers of the first volume of this series, "The Girl Aviators and The Phantom Airship," will recall Mr. Harding. They will also be likely to recollect his son, Fanning, who made so much trouble for Peggy Prescott and her brother, culminating in a daring attempt to "bluff" them out of entering a competition for a big aerial prize by constructing a phantom aeroplane.
I can no more think of the course of organic evolution as being accidental in the Darwinian sense, than I can think of the evolution of the printing-press or the aëroplane as being accidental, although chance has played its part.
"Ma foi, non!" cried Rodier, unable to keep silence any longer. "I myself, mademoiselle, have kept company in an aeroplane with a lady. Ah, bah! vous parlez français; eh bien! cette femme-l
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