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Re: Mini lathe 7 x12 14 8 shop drill press mill wood working sextant clocks gear milling equipment engine tractor rebuilding repair GPS vs SEXTANT Navigation

 

I did the Latitude adjustments just not labled.
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Thank you?
Dave?
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At Latitude 0° = 17 miles in minute
At Latitude = 14 miles in minute
At Latitude 65° = 7.2 miles in minute
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At Latitude 0° = 0.28 miles in second
At Latitude 35° = 0.23 miles in second
At Latitude? 65° = 0.12 miles in second
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On Fri, Feb 14, 2025 at 11:35 PM, Jerry Durand wrote:

Depends on your distance from the equator.? Changes in latitude, changes in attitude.

On 15-Feb-25 10:28, davesmith1800 wrote:
Try this for time and earth 360°
& try this for time at different Latitudes
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One hour is 1020 miles
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how about one minute
At 0° = 17 miles in minute
at 35° = 14 miles in minute
at 65° = 7.2 miles in minute
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how about one second
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At 0° = 0.28 miles in second
at 35° = 0.23 miles in second
at 65° = 0.12 miles in second.
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35° 0.8192
65° 0.4226
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If your time is off 5 minute 35° you are 70 miles off
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Dave
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