Remove Cargo Remove Indicated Airspeed Remove Knot
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Classic Theory Meets Digital Computer; Status Quo Emerges Unscathed

Flying Magazine

Operators of airplanes used for commercial transport of people or cargo prefer pound-miles per gallon, but for personal airplanes with randomly varying payloads mpg is a satisfactory yardstick for efficiency. Again, these are indicated airspeeds. Now, miles per gallon is a function of true airspeed, not indicated airspeed.

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The Captin is Lying and We can Prove It

Air Facts

Naturally, my first officer and I got a good laugh from this as our 757 was cruising along effortlessly at about 300 knots indicated airspeed, and was not yawing towards the supposedly dead engine. This was done to save fuel and to allow the rampers to open the cargo doors on the right side sooner.