AIR SPEED

Rotorua Morning Post, Volume 2, Issue 281, 22 July 1932, Page 4

AIR SPEED

WEIRD POSSIBILITIES B OF SOME FUTURE H RECORDS. ■ "We could fly the speed of sound-H approximately 740 miles an hour-lH we wanted to," declares H. E. Wia|^B peris, Director of Scientific ResearclB Air Ministry, in the Daily ChronicIeB "But no money is available,' k-H adds. "Moreover, I don't know any-H body who has such an inclination." Flight beyond the velocity of souiB| at ordinary heights is unlikely to bB achieved, he says, because hallistic^B show that the resistance is almoi^B quadrupled, necessitating horsa-fw® er entirely disproportionate to results, while fiying at enormously i"|H creased heights in hermetically-sealf^B ehamhers would not appeal to passecBf gsrs. K Mere 400 M.P.H. Experts are now doubtful of advantage of incfeasing press^B speeds. Civil 'planes are unlikely exceed 400 m.p.h. at any time. "As practical people," he says, are aiming at saf ety and quiet, former hy streamlining, careful co^H struction, and increased engine eBf ciency, and the latter by insulati^B the cabin until the noise is compa^B able to that in a train corridor, abling easy conversation." The difficulty is to diminish roar of the engine without increas'BB the weight. K