New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1911-05-21
RULES MAY Be CHANGED
lillian HaIford Offers Sugges.
tons for Truck Contests.
nm COST PER TON MILE
Favors Reliability Contest of
10000 Miles as Best Basis
for Figuring.
IN COST PER TON MILE
NJ JuIiau Halford. Of WyckoT. Church &
Partridge New York.

', nv oninion the entire basis ~ the
..,iss nroposed by the A. A. A. board COW
.-.,r a contest of motor trucks is totally
wrong
r,rrinr the last few wears many Euro
=, motor truck trials have been held.
80 zach rule suggested by the A. A A.
- N he a copy Of the 1901 Liverpool
80 With but a few alterations Since
,sot date however. much has been
learned.
IRE objective Of motor truck is work
aore in a certain period at a discovered
eos, This IS expressed in the form Of
...os, per ton mile" I see nothing in such
nroposition whereby a truck should be
,orced 10 e. at specified speed per hour
.asring in mind what the object is. There
.,rs the only way in which proper con-
,..,s could be formed must be on basis
- the maximum award 10 the truck which
.os,s the least 20 run per ton mile. The
.t-,s period comes into this equation as a
necessity. since the truck which does a
GIVEN amount Of work in the least time.
..sAr things being equal. is bound 10 have
louer cost per ton mile than a slower
s,ssd truck. as such items as driver s
v,ges depreciation (Which can, in this
..ss be reckoned at so much per annuml
nd other fixed charges will be less II a
rysn work is accomplished in lesser
period.
follows
The LOAD which q truck is 20 carry
.bsn 10 declared p Hours during Wnlcn
- Ia shall he SpCcilcQ
H. the committee. or the amount or work
20 he done. expressed in ton miles, shah be
sssised on hv the committee. 3. me de-
n,scietion can be figured al a hXeo per
pre- ,s,.a.s0'' pe~ annum by the board. 4
T-sver's wages shall be figured az a nNed
ag,~a per day O. The price Of gasolene
nsr ya'fon shall be fixed 80,
Tive awards should go 20 the truck which
,-ersgee fine lowest cost per ton mile
Let ms assume a hypothetical case-run-
rire time shall be eight hours per day' ue-
rreciarion shall be 20 per cent per annuin
-, ,ruck q truck snail he declared 20
carrt q load Of four tons and the driver
vsrss shall be fixed az $50 per week or
t92; uer dav OF eight hours
on the above assumption, one uuI n
--,rs AZ four miles an hour one day or eight
49, ~ viii have carted four tons thirty
Two miles. and effect work equaling ~ ton
r,i4e-cost u such carriage would be as
rr,ver 20 per week. 50 "a; gasolene used,
60. EIGHT gallons A. 10 cents per gal on
IS cents. uhricating oil. say ! quart. AZ 50
cents gallon f5 cents. depreciation az
% per cent per annnn on cnaS soS ALI rs
uithout tires g. e0. allowing 800 work
iuc Savs s. So. the mainf enance-We VIII
assume that fhis one day shows nothlls
hence maintenance could not ne lncludfu.
L Tho trial was over an extended perloc
The amount Of labor spent In maintenance
and the amount ~ parts fitted should be
taken ar cost price and he Included IN me
above irem Tircs-this also. in trial oi
figure For a f0ur-ton truck. say Si2 cents
rer mile s. total 50 TO- Divided by IN.
which IS 'ne work done expressed N ton
miles equals .01ls. -
hours during which period the vehicle runs
a. eight miles an hour. carrying four-ton
load During one dav distance run would
10 80 miles carving a load OF four tons,
couailine work done OF 25s ton miles
Driver wages. $50 per week 81 81 saso-
enc used say T. gallons at y cents a
calico ri 81. 'ubric9ting OIL quarts. al so
cents neI salon. so cents. depreciation on
tho same basis E. .. % per cent per annum
m valve Of chassis without tires,
aro 80 working DAYS. &67 tires.
W. win assume on the same basis. 6iz cents
Ter nile "a miles. 81 Is. cquallins total
of SRI o. or q cost Dec ton mile Of 046j.
With the above example a business man
could satisfy his own mind Immediately
which was the most economical truck. The
one point which might be brought Up Is that
excessive specd IN q long distance might
produce undue wear. Unless locc-mile
reliability contest could be held This figure
IS bound 70 be fictitious. Within lm-mile
I'm break I'M the mechanism might occur
% a truck and this would prove really
nothing do not see how cost of upkeep
can be fairly determined in q contest OF
this description
should. however. stipulate that every
truck which enters 70 contest must be able
% pull 4o with either brake within the dis
lance o. its length or its length and half,
running az d speed which the maker con-
sders IFS running speed. Such test would
h necessary 90 safeguard the public
think if the above proposition IS considered
. IN tie proper light il viii Do seen mat
these proposals are about as fair as could
he made FOR a truck contest and that limit
OF speed and questions of this sort are only
stopping Development Of the motor truck
movement and are productive Of no con-