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Transonic Flight
Part two in a three part documentary series looking at how supersonic flight might be achieved in the future.
Year: 1957
Genre: Documentary
Studio: Shell Film Unit
Director: Denis Segaller
Cast:
Crew: Denis Segaller (Director), Sidney Beadle (Camera Operator), Ronnie Whitehouse (Camera Operator), J. N. Quick (Technical Advisor), Maurice Picot (Assistant Camera), Julian Cooper (Assistant Director)
Runtime: 20 minutes
Release: Jan 01, 1957
IMDb: 5.00/10 by 1 users
Popularity: 0
Country: United Kingdom
Language: English
Budget: 0
Revenue: 0
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Following on from the first in the series "Approaching the Speed of Sound", this picks up with a model aircraft in a wind tunnel and proceeds to demonstrate how air density can affect the speed of the plane. This is especially risky in the "transonic" range where stability is largely compromised. Using colour illustrations, we are presented with bow waves and shock waves, and a simple explanation is provided as to the distinctions between subsonic, transonic and ultimately supersonic airflows and how that impacts on the ability of the plane to move quickly, with out excessive turbulence. It helpfully uses boats on water and other more practical illustrations to stop this becoming a lecture in aerodynamics, but it does rather let itself get bogged down in Mach terminology and language that began to wash over my head a bit. Still, it does present an interesting look at how (wave) drag and shock must be overcome if safe, and comfortable, supersonic travel is to be achieved.