Compass

February 4, 2013 - 3:40am

Slowly, the old rules of navigation are changing, and one of the oldest, which dates back before the days of sailing ships, is the rule about magnetic variation and compasses: “Variation East, Magnetic Least; Variation West, Magnetic Best.” That means, for example, that if you’re flying out of Presque Isle, Maine, and want to fly due west, you need to turn onto a compass heading of 290 degrees, because up there, the local variation is 20 degrees West and the variation rule says “West is best.” That is, adding magnetic to true makes it a bigger number, or “best.” But to fly due west o

November 30, 2011 - 11:06am

The FAA has issued an Airworthiness Directive for the Socata TBM 700 electrical system.

January 22, 2008 - 8:50am

Honeywell has obtained TSO authorization for the new Bendix/King KI 825 EHSI (electronic horizontal situation indicator) for business aircraft. The three-inch display weighs three pounds and is fully sunlight-readable, said Honeywell.

January 22, 2008 - 8:50am

Honeywell has obtained TSO authorization for the new Bendix/King KI 825 EHSI (electronic horizontal situation indicator) for business aircraft. The three-inch display weighs three pounds and is fully sunlight-readable, said Honeywell.

November 15, 2006 - 10:25am

British pilots are pushing for true headings to replace degrees magnetic when expressing aircraft direction and bearing. The British Airline Pilots Association and the Royal Institute of Navigation are working to persuade authorities to replace the magnetic reference system because they believe true headings are more accurate and are more cost effective operationally.

October 12, 2006 - 6:38am

Sandel Avionics last month introduced the SN3500 line of electronic HSI units, featuring compass, map, flight-plan display and RMI, along with traffic, terrain and weather displays. Developed as a replacement for the SN3308, the new product line includes the basic 3-ATI EHSI and supports nav functions, mode-S transponder traffic input and the WX-500 Stormscope. According to Sandel, there are three versions of the SN3500.

 
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