Safe Flight has received US approval for its N1 computer in the Cessna Citation Ultra and Raytheon Beechjet 400A business jets. The panel-mounted computer displays target thrust-setting (percentage low-pressure-spool RPM) for take-off, climb, cruise and go-around.
The system continuously monitors ram-air temperature, pressure altitude, environmental-control-system configuration and anti-ice mode to compute the appropriate target N1 (fan-speed RPM), says the White Plains, New York-based company. The $9,650 computer is to be installed in the US Army's planned UC-35A Ultra.
US certification is pending for integration of the unit with Safe Flight's AutoPower automatic-throttle system on the Beechjet. The combined system will provide full-range autothrottle operation, from take-off to touchdown, the company says.
Source: Flight International