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Influence of Airspeed Measurement Error - Implications for Dead Reckoning Navigation (CROSBI ID 220627)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Novak, Doris ; Alfirević, Izidor ; Popović, Boris Influence of Airspeed Measurement Error - Implications for Dead Reckoning Navigation // Transactions of FAMENA, 39 (2015), 2; 13-22

Podaci o odgovornosti

Novak, Doris ; Alfirević, Izidor ; Popović, Boris

engleski

Influence of Airspeed Measurement Error - Implications for Dead Reckoning Navigation

Errors in navigational instruments can significantly affect flight safety. Airspeed is a key piece of navigational data that depends on accurately measured air pressure, which in turn depends on accurately measured air temperature. Instead of measuring the outside air temperature in real time, cockpit instruments are preprogrammed with standard air temperature values for different flight altitudes, but atmospheric conditions can cause the actual temperature to deviate substantially from these standard values. In the present study, test flights were conducted under various atmospheric conditions to examine how the actual temperature affects the deviation of the actual airspeed from the measured airspeed. Results indicate that the differences between the actual and the standard temperature, and not those between the actual and the standard pressure, are the primary cause of deviations of the measured from the actual airspeed. The results of this study may help establish aircraft flight models based on more accurate estimates of navigational parameters.

Airspeed ; outside air temperature ; dead reckoning navigation

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Podaci o izdanju

39 (2)

2015.

13-22

objavljeno

1333-1124

1849-1391

Povezanost rada

Tehnologija prometa i transport, Zrakoplovstvo, raketna i svemirska tehnika

Poveznice
Indeksiranost