When it was mentioned that the word "fair" meant average (or whatever the verbiage used), this is WHY I tried to explain that "fair" written by people in a country at a certain time certainly did NOT mean average...it meant CONSIDERABLE.
Shara
The problem I had with the interpretation meaning 'a great deal'/'considerable' is with other uses of the word in standards. To define fair to mean considerable would also mean that the RR should have considerable length to the head and the neck should be considerably long.
Quotes from the original 1922 standard
"THE HEAD should be of fair length"
"THE NECK AND SHOULDERS. The neck should be fairly long"
So do we have a good length of neck, or a neck that is considerably long.
Which one is it, does Fair mean good/reasonable or does it mean considerable/a good deal of.
The answer is actually both.
After more in-depth research I found that the word fair when used by itself to describe something has it's own meaning, of course taking into consideration the context in which it is used.
ie, A fair day means a clear day. A fair lad would mean a handsome man, yet could also mean a just or reasonable man. A fair book would mean a reasonably good book or it could mean an o.k. nothing spectacular book.
And a fair length would mean a pretty good or respectful length while fairly long would mean respectfully, proportionately, moderately and tolerably long.
Now where is gets very interesting and clarifies, without any doubt, that considerable IS the correct interpretation, in reference to the amount of speed the RR should have is in the addition of the phrase 'amount of'. It's the whole phrase 'a Fair Amount of' that is the key to the correct interpretation.
From the OED (Oxford English Dictionary), the internationally accepted experts on words, their definitions and their etymology.
considerable, a. (and n.)
2. a.
A fair amount, quantity, etc., of something. (Cf. 6b above.) U.S. from 1745 - 1943
(Here is the definition that is referenced above.)
6. U.S. colloq. a. Used of things material: A large quantity of, as ‘considerable liquor’; also absol. much, a good deal. from 1839 - 1890
b.
Freq. absol. followed by of. (Cf. B. 2 below.) U.S. from 1685 - 1904
So yes, 'a fair amount of speed' literally, without any doubt, does indeed mean a CONSIDERABLE amount of speed.
So Denise, that would also mean that if the standard was changed to require 'a fair amount of tuck up' then it would mean a considerable amount of tuck-up, yet a 'fair tuck-up' would mean a reasonably good tuck-up.
Definately a tricky little word and it seems that our standard is not giving RR's enough credit when it comes to how much speed they should have, since considerable is definately much better than good.