FOREST AND STREAM. 




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Report of Time Allowance Inquiry. 
WE publish herewith the report of the sub- 
committee appointed by the Atlantic Coast Yacht- 
ing Conference on time allowance. ‘The report, 
which is most interesting and complete, was pre- 
pared by Mr. Henry J. Gielow, as were the dia- 
grams which accompany it. The report is as 
follows: 
In studying the time allowance question a 
limited amount of material was available, consist- 
ing chiefly of the report of the Regatta Commit- 
tee of the New York Y. C. for 1905 and reports 
of the results of the races of the Larchmont, Man- 
hasset Bay, New Rochelle, Indian Harbor, Har- 
lem, Horseshoe Harbor and Northport Y. C.’s. 
It is to be regretted that we were unable to get 
the results of races held by the clubs forming the 
Y. R. ‘Ay of Gravesend Bay, the, Eastern Y.-C 
and clubs on Massachusetts Bay. 
In all, the results of some 34 race days, includ- 
ing upward of 730 finishes were examined. Some 
material was discarded at the outset as being 
worthless, either on account of the extreme slow- 
ness of the sailing or because there was a lack of 
sufficient data, but such discarded material is 
noted on the diagrams. Five hundred and twenty- 
seven finishes were actually used in the prepara- 
tion of this report. 
After considerable deliberation it was deemed 
advisable to use a graphic method presenting the 
results, as it would show all the factors in the 
problem at a glance and would be readily under- 
stood. Exactness is, from the nature of the prob- 
lem, an absolute impossibility. The best that can 
be hoped for is an approximation of the average 
conditions which prevailed, and this is most read- 
ily arrived at by graphic methods. 
The method pursued consisted of, first, the 
drawing of a curve of time allowance, on the 70 









per cent. basis, as given in the standard tables, 
and also a curve of the full 100 per cent. allow- 
ance; second, the plotting of the data and draw- 
ing curves; third, comparison of the curves so 
drawn with the 100 per cent. curve; fourth, com- 
parison of the curves with one another; and, fin- 
ally, the deduction of conclusions. 
The standard time allowance tables are based 
on the assumption that speed of a well formed 
vessel in knots is equal to the square root of the 
waterline length in feet or what has been cur- 
rently accepted as the same thing, the square root 
of the rating measurement. ‘These speeds in 
knots per hour converted into seconds per knot 
and plotted on the accompanying diagrams 
give a curve whose equation is Y = 3,600, it 
VX 
which Y is the number of seconds that it takes 
a vessel of X rating to go one mile. Such curves 

Note. “The positions of the classes cs indicated 
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indicates auxtliastes, and alt others are slog, 











TIME ALLOWANCE CURVES. 
LONG ISLAND SOUND RACES 
HELD IW 1905. 
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