Theory of the Measurement and Standardization of In-Flight Performance of Aircraft

Dunlap, Everett W.; Porter, M.

doi:10.21236/ad0725741

Cited by 8 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that V t = (u 2 + v 2 + w 2 ) 1 (4) The use of Bernoulli's equation 4 to express the relation between pressure and velocity allows Eq. (3) to be written as AC = 1 -V 2 /V 2 (5) Note that the flow-angle sensors mounted on the nose boom near the static ports have the relations where ft is the angle sensed by the beta vane, and a is the angle sensed by the alpha vane. It can be seen from Fig.…”

Section: Correction Algorithmmentioning

confidence: 99%

Correction of sideslip-induced static pressure errors in flight-testmeasurements

Parks

Bach

Tran

1992

Journal of Aircraft

View full text Add to dashboard Cite

During lateral flight-test maneuvers of a V/STOL research aircraft, large errors in static pressure were observed. An investigation of the data showed a strong correlation of the pressure record with variations in sideslip angle. The sensors for both measurements were located on a standard air-data nose boom. This paper describes an algorithm based on potential flow over a cylinder developed to correct the pressure record for sideslip-induced errors. In order to properly apply the correction algorithm, it was necessary to estimate and correct the lag error in the pressure system. The method developed for estimating pressure lag is based on the coupling of sideslip activity into the static ports and can be used as a standard flight-test procedure. The paper discusses the estimation procedure and presents the corrected static-pressure record for a typical lateral maneuver. It is shown that application of the correction algorithm effectively attenuates sideslip-induced errors.

show abstract

Section: Correction Algorithmmentioning

confidence: 99%