Evening star. [volume] (Washington, D.C.) 1854-1972, 1912-05-12

for cars that are trying to pass, and aid
and relieve the driver in every way pos
sible. Their main requirement is to take
orders, the same as a soldier They do
play their part in silence and with brave
and Lnself1sh spirit that makes them
heroes nevertheless.
Bert Dingley left Los Angeles a few
days ago and will arrive in Indianapolis
today with his fifty-horsepower Simplex
to begin practice for the f1ve-century
event Memorial day. At Santa Monica
Dingley had hard luck with tires, but his
mount showed that it had remarkable
speed. In spite of the fact that it was
running against cars of much greater
displacement of motors will be limited to
600 cubic inches. and Dingley's racer,
which has 497 cubic inches will be on
more even terms with other contestants.
This pilot is big favorite on the coast.
and host of California enthusiasts, as
we'll as many in the east are banking on
him to make a great showing.
4 X
Confronted with several serious prob
lens of highway rehabilitation in prepar-
alton for the Vanderbilt cup and Grand
Prize road races, the race committee of
the Milwaukee Automobile Dealers Asso-
citation has eliminated all but two. There
remain the proposition to build stretches
of concrete roadways for the racers and
the more simple one of simply facing up
the highways selected for the course and
making the turns wider and safer
In order to get data on the efficiency
and cost of concrete roadways a delega-
ton OF motorists has been sent to Wayne
county, Ind. to study the concrete road
ways installed in the Hooser territory
Test runs are to be made on the concrete
roads, from which technical experts will
draw deductions on wear on tires, safety
| n
engine efficiency
Milwaukee learns from the east that
n1teen nominations are as good as made
Tor the Vanderbilt race" said Cream
city motorist: That makes it look as if
1t were time for Milwaukee automobile in
terests to get together to accomplish
something definite in regard to the course
for the big race
We have several routes available, the
CO. operation of the city's commercial and
professional leaders are promised funds
Tor road Improvement as well as offers of
trophies Haste might mean waste, how
ever, In the matter Of roadway prepara-
tion. hence the desire to ascertain wheth-
er or not we can afford a permanent con-
crete race roadway
+ X X
The Santa Monica road race which was
won by car with ACKNOWLEDGEMENT piston
displacement. caused many motorists to
hunt some authority on motor cars and
learn just what piston displacement"
means. A canvass along automobile row
proved that there is a shocking lack of
knowledge on this particular subject. The
common impression was that it is the size
OF the cylinders. This Is not so: II is
the area times the length of the stroke
or the piston in the cylinder times the
number of cylinders. In other words, the
cubical contents of the cylinder between
the piston at its highest point and at its
lowest point
Thoroforo tho ,roo%.~ Al.
the highest and lowest point of the pis-
tons stroke the greater the number OF
cubic inches Of gas, resulting in a great
er amount of power.
4 + y
BY winning the light car class in the
Santa Monica road race. averaging 61.S
miles per hour for 1O1 miles, a Maxwell