This study paralleling FAA's Maintenance Growth Management concepts presents a standardized and modularized approach for the remoting of certification type data for multiple NAVAIDS (VOR, TACAN, ILS, etc.) to provide ATF status and control at a central location. Growth potential to encompass other NAVAID types (RCAG, ALS, RVR, Beacon/Radar, etc.) may be incorporated in the proposed system, providing the proper interfaces are accomplished. (Author)
This report covers tests conducted to determine the possible causes of interference to aircraft very high frequency (vhf) voice communications resulting from transmissions from the vhf digital data link system operating onboard the same aircraft. Tests were conducted to determine aircraft vhf antenna isolation and vhf receiver response. The tests show that isolation depends on the physical positioning of the antennas on the airframe and that existing isolation (found to ...
Altimeter setting values disseminated to the pilot are currently obtained from nonelectronic (aneroid) dial and pointer indicators. Electronic systems with potential for continuous sensing of ambient atmospheric pressure and subsequent conversion to altimeter setting values and remoting to multiple digital displays were tested for warmup, accuracy, temperature, line voltage, and stability. Data on the results obtained and the test procedures are presented.
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