Boeing has selected the dual ship set Air Data Attitude Heading Reference System (AHR150A ADAHRS) from Archangel Systems for the upgraded CH-47 Chinooks involved with the UK Royal Air Force (RAF) Project Julius program. This provides the Thales digital glass cockpit with attitude, heading and air data solutions.
Project Julius is the designation of the program to provide the RAF’s heavy lift Chinooks with a “glass cockpit” and upgraded Honeywell T-55-714 engines. The first Julius-equipped Mk4 aircraft have already been sent to Afghanistan.
According to Boeing, the selection of the AHR150A was a result of its “low-noise inertial vertical velocity measure.” It comprises two boxes – an Inertial Sensing Unit (ISU) and a Magnetic Sensing Unit (MSU). Together they are claimed to offer an alternative to fiber optic gyro systems.
Michael Greene, Archangel CEO, called Project Julius “a technically exciting program.” The AHR150A is also used on the Erickson S-64 Air-Crane.
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