Evening Republican, Volume 15, Number 63, Rensselaer, Jasper County, 15 March 1911 — Safest to Fly High. [ARTICLE]
Safest to Fly High.
That it is safer for an airman Ur fly high than comparatively near the ground is Indicated by meteorological tests carried out on behalf of the British air office at Teddington. A kite with a special recording apparatus has been sent np to various heights, and it has been shown that on a gusty day sudden fluctuations in the pressure of the wind —which are an airman’s peril—diminish perceptibly as a kite ascends. What airmen have discovered when in flight is that dangerous gusts sweep over woods and hills or .through valleys. For this reason .when passing across country they seek to maintain an altitude of at least 7,000 feet
