Instrumentation for Airwake Measurements on the Flight Deck of a FFG-7

Le résumé fourni par la source

The Royal Australian Navy (RAN) operates helicopters aboard many classes of ships, including the Sikorsky S-70B-2 Seahawk helicopter on the FFG class and possibly the new ANZAC class of frigate. In support of the RAN aviation activities the Aeronautical Research Laboratory (ARL) is pursuing the development of a computer simulation model of helicopter operations from a ship. As part of the RAN sponsored helicopter/ship model validation task (Task 89/073) sea trials were conducted aboard HMAS Darwin, an extended deck FFG-7 class of ship, to obtain airwake data in the proximity of the flight deck. The data, after processing, will be used, together with results obtained from wind tunnel tests based on a 1/64th scale ship model, to form a suitable airwake model in a helicopter/ship simulation computer code. Much of the instrumentation described in this paper has had extensive use in other wide-ranging applications such as a Clear Air Turbulence (CAT) investigation, First of Class Flight Trials (FOCFT) and dynamic undercarriage measurements on a Sikorsky S-70B-2 Seahawk helicopter. Motion-related trials have involved a road vehicle and various types of ships. The equipment was reconfigured to that considered applicable for the airwake application.

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