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"Roy Smith" wrote in message
... "Gary L. Drescher" wrote: A hundredth-degree change in descent angle is (barely) perceptible on the ASI or VSI. I'd like to see a pilot or VSI which can notice the difference between 500 fpm and 502 fpm. You're right, it would have been more accurate for me to say a *few* hundredths of a degree. But that still justifies more than one decimal place of precision. A few hundredths of a degree change of descent angle moves the VSI needle almost as much as a one-degree heading change moves the HI (and courses are routinely specified with single-degree precision). --Gary |
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