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Use of Global Positioning System velocity outputs for determining airspeed measurement error

Published online by Cambridge University Press:  03 February 2016

G. B. Gratton*
Affiliation:
School of Engineering and Design, Brunel University, Middlesex, UK

Abstract

Several methods have been derived since the advent of GPS (Global Positioning System) receivers in aircraft cockpits by which these receivers may be used to calibrate these aircraft’s other instrumentation; in particular the pitot-static system. This paper presents the four most suitable methods, two of which have been developed by the author. These methods are shown with a common symbology, and their strengths, weaknesses, analysis and operational use are compared.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 2007 

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References

1. Serrano, L., Kim, D., Langley, R.B., Itani, K. and Ueno, M., A GPS Velocity sensory: How accurate can it be? – a first look, 2004, paper presented to ION NTM 2004, San Diego, California, USA.Google Scholar
2. Gratton, G.B., Instrumentation and avionics, BMAA TIL 027, 20 March 2000, 1.Google Scholar
3. Gratton, G.B., ASI Calibration helpsheet, BMAA form AW/43, June 2002, 1a,.Google Scholar
4. Lewis, G.V., A flight test technique using GPS for position error correction testing, 1997, presented to SETP.Google Scholar
5. Lewis, G.V., Using GPS to determine pitot-static errors, 14 August 2003, National Test Pilot School, www.ntps.edu/Files/GPS%20PEC%20Method.doc.Google Scholar
6. Gray, D., Using GPS to accurately establish true air speed (TAS), June 1998, privately published, no formal reference, available at www.ntps.edu/Files/tas_fnl3.pdf.Google Scholar
7. Fox, D., Is your speed true?, Kitplanes, February 1995, pp 4950.Google Scholar
8. Lowry, J.T., Performance of Light Aircraft.Google Scholar