OCR Text |
Show Even If Brennan's Invention doe" not turn out as expected, il is only j question oi time until such a device Will be perfected. Experiments by other helicopter operators make thia certain Hansch, the German, nearly a yeai ago, exhibited in Holland a helicopter helicop-ter expected to travel 312 miles an hour. Nothing has been heard of him since, so his machine apparently need ed inure tinkering before placing it on tin- market A helicopter, by the way, has special propeller blades ;.bue and below tho airplane, parallel with the ground Thus, in rising, the upper blades cre-ato cre-ato a vacuum in the air, into whicb tho plane rises. With a helicopter plane, you could land on the flat roofs of buildings o' even settle slowly into the street. With a marvel like that, man would be a better flyer than a bird for a bird glides outward when soaring into the air. no |