Measuring and testing – Navigation – Leeway incidence or side-slip
Patent
1998-07-02
2000-01-11
Oen, William
Measuring and testing
Navigation
Leeway incidence or side-slip
G01C 2100
Patent
active
060123311
ABSTRACT:
Improved multifunction probe designs include circumferentially separated pairs of sensing ports which may respectively be dedicated to angle of attack functionality and air data pressure sensing functionality. In one preferred embodiment, a multifunction aircraft probe is provided with a rotatable probe element which is adapted to project outwardly from an aircraft with which it is operatively mated. The probe element is provided with a centrally located (i.e., in substantial alignment with the probe's stagnation line) dynamic pressure sensing port, and outer and inner pairs of pneumatic sensing ports which are symmetrically circumferentially separated from one another and from the dynamic pressure sensing port. Most preferably, each of the outer pneumatic sensing ports is circumferentially spaced from the central dynamic pressure sensing port by a first angle (e.g., substantially 90.degree.) while each of the inner pneumatic sensing ports is circumferentially spaced from the central dynamic pressure sensing port by a second angle (e.g., substantially 45.degree.). In such a manner, the angle of attack functionality may be maintained completely independent of the air data pressure sensing functionality of the probe assembly.
REFERENCES:
patent: 4833917 (1989-05-01), Wilson
patent: 4841844 (1989-06-01), Tootle
patent: 5544526 (1996-08-01), Baltins et al.
patent: 5811691 (1998-09-01), Jackson
Baltins Guntis U.
Martin David N.
Menzies Margaret A.
Avionics Specialties, Inc.
Oen William
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