The sun. [volume] (New York [N.Y.]) 1833-1916, 1915-08-19
Mcnamara Leads at Half Way Point in Western Open GoF-Teh IT, Speedka of Bdorhne
TECH JR. ATTAINS SPEED
OF OVER 81 MILES AN HOUR
Runs Six Separate Miles in Average of $3.50, and Wins
Championship Cup-Miss Detroit, Gold
Cup Winner, Disappoints.

The Tech Jr., a "a foot hydroplans
owned by Col. T Coleman du POM and
seered by his son, T. Coleman du Pont,
Jr'. made a new record for motor boats
over the measured mile course on Man.
hasset Bay yesterday afternoon and CAP
tured the championship cup, which she
VIII mold for one year. She ran six times
over the measured course -. $3.50 yar.s,
a nautical mile. and her average was
1917 nautical miles. or 53.s7s stat
ute miles an hour. This Is the great
est authentic speed yet attained by n
motor boat on this sid of the Atlantic
she ran so smoothly that she did not
appear to be making any great speed
and only close students Of motor boat
speed could tell that she was moving 40
iast She started without any fuss and
When her mechaniclan opened up thu
engine she quietly lifted herself onto the
surface OF the water and, skimminR
aIong on her planes. exceeded railroad
speed. Her best mile, the fourth, she
made in l minute l6 seconds, which Is
at the rate of 54.5f statute miles an
hour.
e'V ''Nh w. was utSlkT1tu ana DUH
by Adolph APPEL at ventnor, near At
lantic City. She is driven by an eight
cylinder Sterling motor OF $50 horse
power. n engine turns 1850 revolu-
tons a minute and IN geared 30 tina Il
turns a Columbian Architects propeller
2,067 times a minute. This propeller In
OF two blades, 20 inches in diameter by
40 inches pitch. The boat In 81 feet
long. 6 feet 6 inches beam and with the
motor weighs 3.463 pounds without the
crew. With T. Coleman du Pont, her
helnsman: Mechanician rady Wylis
and the gasolene h probably weighed
300 pounds. This is much more thar
the other boats OF her size weighed.
APPEL says early In the season she was
tried over the Government measured
mile on the Delaware River and made
1913 statute miles an hour. He Is sure that
II the water had been smooth yesterday
and II she had not broken one of her
planes she would have don a mile a
minute. The Miss Detroit made the
poorest record OF the afternoon n she
did SO little better than she did in the
races for the Gold Cup that some OF the
gilt--it In a gilt, not a gold cup-has
been rubbed off. The Tech Jr. does
not negotiate turns easily and she lost
ground at every turn Of the triangle Of
the Gold Cup course. but on the straight
away Sne always moved very 1ast.
Four boats succeeded in completing
the six trials over the course. and Ankle
Deep Zoe started but stopped in the
middle of the first mile. After finishing
the first trial she withdrew. She
showed some remarkable speed running
into the bay and nan declared that II
was the best speed OF the meeting. but
IL end d there.
There was a fresh wind from the
north which roughed the surface Of the
water so that conditions were not nearly
as good as they were for the cup races.
The owners met in the clubhouse Of the
Manhasset Bay Yacht Club and drew
lots for the order in which they should
make their trials. The order was
Presto. Ankle Deep Too. Baby Speed
Demon H., Miss Detroit and Tech Jr.
The Tech Jr.'s position was the best as
by time for her to start the wind had
dropped somewhat so that the water
was smoother and 1t was nearly high
tide. so that II was deeper as well.
Ranges had been placed at each end
OF the course and the timers were on
platforms erected so that they could