Rosemount Inc.

Melvyn S White

James S Johnston

Mike Lamdin

Mark J Torres

David W Pownall

Ken Rendle

The invention relates to a deployable probe for measuring fluid pressures such as pitot and/or static pressure. The probe comprises an outer tubular casing, a probe member telescopically extendible from within the outer casing, spring means urging the probe member to extend longitudinally from an undeployed position which is wholly contained within the outer casing, a latch retaining the probe member in the undeployed position and releasable to deploy the probe, and extendible communicating means interconnecting the probe member and the outer tubular casing for supplying pressure indications from the probe member when the probe is deployed.

Deployable probe

Air data measurement apparatus for use on an aircraft, comprises a housing (1) open at both ends (2, 3) and divided into two chambers (8, 9) by a transverse wall (7). The leading end chamber (8) contains a total pressure sensor (11) and the trailing end chamber (9) contains a total temperature sensor assembly (15) whereby the apparatus functions to measure total temperature and pressure at a common point on an aircraft.

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Bognor Regis, United Kingdom

Melvyn S White