[Milsurplus] knots and "The High and The Mighty"

[D C *Mac* Macdonald]

Sorta like the doofi (plural of doofus) who used English
instead of metric (or vice versa) measurements and
goofed up the Hubble mirror!!!

Mac - K2GKK/5



----Original Message Follows----
From: "B. Smith" <smithab11 at comcast.net>
To: "milsurplus" <milsurplus at mailman.qth.net>
Subject: [Milsurplus] knots and "The High and The Mighty"
Date: Thu, 16 Mar 2006 13:21:03 -0500

Knots is those little thingies that the "navigator" got confused with on the 
"The High and The Mighty". He said he "made a 11 minute error" because of 
the conversion of miles to knots.

However assuming an airspeed of 200 knots with possible tail wind of 10 
knots this would
give a Ground Speed of 210 knots.

Assuming that  they were a considerable distance past the Point of No Return 
and were say 500 miles from San Francisco. (BTW the span between SF and HNL 
is the longest  over water span in the world without an alternate 2084 NM, 
and you always hear strange noises from the engines at the 1000 mile point)

Anway--

500  statues miles at a ground speed of 210 MPH would be a total time 
enroute  of  two hours and twenty three minutes,  2+23 minutes total time to 
SFO.

500  statue miles at a ground speed of 210 Knots would be a total time 
enroute of two hours and four minutes , 2+04 or an error of 19 minutes.   So 
for an error of 11 minutes they must have been quite a bit closer than 500 
miles say 400 which would give an error of 13 minutes.

All the above is assuming that they do a straight in approach without any 
vectors.

However I forgot about the engine and parasite drag so will have to use a 
ground speed of 165 and redue the problem.

Anyone confused yet?   :-)
breck k4che





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