Application Briefs
Sensor Technology Ltd.
Banbury, Oxon, UK
01869 238400
www.torqsense.com

A newly developed intelligent wireless helicopter load sensor has a choice of two displays, offering simple or comprehensive data read outs, so that users can select the best option for their operational needs.

The HeliNav LoadMaster's simple sensor display is a small and lightweight unit designed for easy mounting in the helicopter's cockpit or window. It displays the current load on its screen, a figure which is updated ten times a second and communicates with the sensor on the cargo hook using a radio frequency wireless link. The wireless nature of LoadMaster means that it can be fitted in a matter of seconds. This makes it possible to share one unit among a fleet of aircraft, since it is independent of the helicopter and its system does not need official approval or certification.

For straightforward tasks, such as lifting loads from ship to shore, the simple display gives adequate information. It uses the license-free 2.4 GHz waveband to transmit load signals from hook to display. It has a tare function to zero out fixed loads and the units of measurement are user selectable. It also has a reflective sunlight readable LCD display, optional analog/digital readout, optional external antenna for maximizing reception, and a ball mount with other base options available on request. It is powered by a standard rechargeable battery and is completely standalone and independent of the aircraft.

The other option is a sunlight readable touch screen that is preferred for duties such as crop spraying and complicated point-to-point flight paths. This model can display maps, charts data tables and other complex information. Additionally, it will interface with Google Maps and other functions to provide high level information and control. This model operates from the aircraft's 24V power supply.

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