"Dots out" may be a common measure pilots use to measure their tracking skills, but review the lateral displacements those dots represent.įly PTS-grade practice approaches, and if the CDI deflects full scale, it’s time to miss. With a maximum one-quarter scale deflection maintained, “the aircraft will be aligned with the runway,” explains the Instrument Flying Handbook. On most localizer courses, full deflection indicates 2.5 degrees. In VOR navigation, full deflection "indicates the aircraft is 12 degrees or more off course." (To review: At 60 miles, a degree off course equals a mile off course.) Recall an instrument rating practical test standard: A three-quarters scale or more CDI deflection is unacceptable. Here’s how powerful: "I did recognize I was being affected by the leans but I felt I could not trust my instruments," the instructor wrote.įortunately, training allowed a root navigation concept show the path out of danger: When the CDI became fully deflected, time was up for troubleshooting a glitchy GPS. Pilots learn in primary training that vertigo is a powerful distracter. Thales 23501 West 84th Street Shawnee, Kansas 66227 USA Tel: +1 913 422-2600 Fax: +1 913 422-2962 27 February 2008 ffLIST OF EFFECTIVE PAGES INSERT LATEST CHANGED PAGES.
#Localizer ils how to#
But with the course deviation indicator fully deflected, the instructor informed ATC of the problem and requested vectors to the missed-approach navaid-wisely preselected in the No. TECHNICAL SUPPORT AND ORDERING REPLACEMENT PARTS For technical support and information on how to order replacement parts, contact your equipment provider listed below. The back-seater pitched in, helping the multi-student set up the approach.
#Localizer ils manual#
Line-Replaceable Unit Maintenance Strategy This manual supports a line-replaceable unit (LRU) maintenance strategy that simplifies onsite maintenance and minimizes downtime and life-cycle costs. But with vertigo, "It was taking almost all my attention to just fly the plane let alone troubleshoot the NAV/GPS issues." understanding of ILS and that anyone using it to maintain the equipment has graduated from the THALES ILS 420 localizer training course. According to the moving map I was right where I was supposed to be, but the HSI was showing the localizer and the glideslope were not coming in."ĪTC provided vectors.
The equipment still transmits 90 Hz and 150 Hz lobes, which are interpreted by the ILS receiver. "This is where it gets embarrassing," the instructor wrote in an Aviation Safety Reporting System narrative. The glideslope works the same as a localizer, but just turned on its side.
After the aircraft entered IMC, the instructor, who had been letting the multi student fly from the right seat, resumed the controls, and was trying to select the approach in the GPS. "Trust the instruments," the multiengine student said.
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