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The Raymarine R28171 long masthead unit is an essential mechanical spare part for wind measurement systems. It performs the functions of a wind transducer and vane anemometer, accurately capturing apparent wind direction and speed.

The "long" design of this masthead is specifically adapted to optimize height measurement. It allows positioning the sensors (wind transducer/vane anemometer and cups) further away from the turbulence generated by the mast itself or by other equipment installed at the masthead (such as VHF antennas or navigation lights). This elevation contributes to more accurate and stable apparent wind readings.

No, the Raymarine R28171 long masthead is a mechanical spare part. It is designed to replace specifically the upper section (wind vane and anemometer) of an existing wind sensor, without including the full electronic transducer or the connection cable.

This masthead unit is primarily designed for servicing wind sensors associated with older Raymarine systems, particularly those requiring modular components such as the ST290 system. It restores functionality to an existing system by replacing the upper mechanical section.

No, the long masthead R28171 is not compatible with newer integrated wind sensors such as the Raymarine i60 or i70s. These systems are complete units and are not designed to use modular components like the R28171.

Once correctly installed and connected to a compatible Raymarine system, this masthead unit measures apparent wind direction and speed. This data is essential for sailboat navigation and performance optimization.

The R28171 long masthead is a mechanical spare part. Its installation typically involves replacing the old masthead on the existing transducer. It is recommended to follow the specific instructions provided in your Raymarine system installation manual to ensure correct and secure installation.

The product R28171 corresponds to the "long masthead alone". The packaging contains only the upper mechanical part of the wind sensor, i.e. the vane and the cups of the anemometer. The electronic transducer, the connection cable or other accessories are not included.