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why is the US not Metric
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tooki:

--- Quote from: Tepe on February 12, 2020, 09:27:51 pm ---
--- Quote from: forrestc on February 12, 2020, 05:13:49 pm ---The one major area where pretty much every country in the world has not metricated is aircraft flight levels.

--- End quote ---
Note the altimeter in this Saab J35 Draken ("Höjd m"):

--- End quote ---
Please go back and read the whole thread, this issue was discussed at length a few weeks ago. Civil aviation and commercial aviation don’t use the same standards always.


To all the folks only joining the thread now: please read the whole thing. You are just coming in and restating what we thread veterans have all discussed long ago.
tooki:

--- Quote from: bsfeechannel on February 13, 2020, 12:51:08 am ---
--- Quote from: xrunner on February 12, 2020, 01:07:20 am ---Must be an embarrassment to admit his location.  :-//

--- End quote ---

Not the least bit.

I live in the world. And the world is metric. I'm really grateful that I am not forced to use any incoherent, cumbersome, obsolete, nonsensical, outdated, clumsy, crippled, lame, ill-contrived, quirky, elephantine, inelegant, graceless, ungainly, unwieldy, clunky, maladroit, bumbling, gawky, loutish, oaf, uncoordinated, uncouth, rustic, boorish, provincial, parochial, splay, lumpish, klutzy, incongruous, disparate, bizarre, erratic, haphazard, disjointed, rambling, antiquated, archaic, outmoded, bygone, kaput, moldy, moth-eaten, old-fashioned, totaled, sunk, floored, overthrown, bewildered, fusty, antediluvian, behindhand system of units.

And I pray every day for those who are not so lucky as I am.

--- End quote ---
You were asked what country you live in, and whether you have spent any time in USA.

As someone who has lived in USA and Europe, I assure you, neither system is a problem to live with. If customary units cause you an experience that trigger that combination of adjectives, then you have serious problems you should seek professional assistance for.
bsfeechannel:

--- Quote from: DBecker on February 12, 2020, 09:36:39 pm ---Wait... is that compass in degrees?  Not radians?  Surely that has been changed to the proper SI unit of radians by now.  We wouldn't want pilots using flight levels in 100 foot intervals and headings in degrees in the metric-only sections of the world.

("They'll take my degrees only when they pry my compass from my cold dead hands.")

--- End quote ---

Radians were considered supplementary SI units until 1995. After that, they were grouped as derived units. And the degree is a non SI unit officially accepted for the use with SI units.
xrunner:

--- Quote from: bsfeechannel on February 13, 2020, 12:51:08 am ---I live in the world.

--- End quote ---

Well the world is big. You can't live all over the whole planet at one time. What part of the world?
Cubdriver:

--- Quote from: Tepe on February 12, 2020, 09:27:51 pm ---
--- Quote from: forrestc on February 12, 2020, 05:13:49 pm ---The one major area where pretty much every country in the world has not metricated is aircraft flight levels.

--- End quote ---
Note the altimeter in this Saab J35 Draken ("Höjd m"):



--- End quote ---

Note the highlighted caveat in the statement above.  "Pretty much" /= all

-Pat
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