The standard method of analysing F.47 take‐off camera films, described in reference 1, is very laborious. It was developed for use when take‐offs were not normally made from runways. Now that most measured take‐offs are made from a runway a simpler method of analysis has been introduced. This requires a fixed camera position at a known distance from the centre line of the runway from which the aircraft is taking off. The essential distances for the take‐off can then be determined from the azimuth angle on the camera record without measuring the image of the aircraft on the film.
Abel, G.C. (1952), "A Simplified Method of Measuring Take‐off Distances: Analysis of F. 47 Take‐off Camera Films Made Less Laborious as a Result of the Use of Runways", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 5, pp. 132-145. https://doi.org/10.1108/eb032156
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