NavList:

I taught and flew with Saudi Arabian Airlines in the 70s in Jeddah SA. We had on the King's Royal Flight 707-300 Executiv-Heavy "HZ planes" aircraft, in the ceiling, a real instrument that we called the Mecca Indicator. It was used to give the Direction to Mecca, at the appropriate prayer times. Being a former USAF Navigator that had trained AF-1 crews in the US I used a Lambert Conformal Jet Navigation Chart modified Rhumb line setting that approximated a true circle. Trouble was at Mach .65 cruise or at GSs of 500 mph+ changes were needed as we flew along.  No one ever complained. Ron Barrett. AFNOA Historian (www.afnoa.org and www.usaf-nav-history.com) --- On Wed, 9/30/09, Apache Runner <apacherunner@gmail.com> wrote: From: Apache Runner <apacherunner@gmail.com> Subject: [NavList 9994] facing Mecca To: NavList@fer3.com Date: Wednesday, September 30, 2009, 1:37 PM If you pray to Mecca, do you use a rhumb line or a great circle?

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