Airienteering with 13MIKE

by Fred J. Calfior and Douglas W. Miller

AirLeg 23

“Runway numbers and letters are determined from the approach direction. For instance, here on runway 9R, the '9' is the whole number nearest one-tenth the magnetic azimuth of the centerline of the runway, measured clockwise from the magnetic north. So its actual direction could be 085 to 094, and still be labeled runway 9! But as always, there's got to be exceptions, and Oakland International airport is one of them! This runway's actual magnetic alignment is 097, so why wasn't it given the label runway 10? Maybe to eliminate any confusion with runway 11 to the south!”

1) Takeoff runway 9R

2) Climb to “2000” feet

3) According to the Federal Aviation Regulations manual, what does the abbreviation “MRA” stand for?

If your answer is “Minimum Reception Altitude”, go to AirLeg 80

If your answer is “Military Reserved Area”, go to AirLeg 92

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