July 16, 1910.] 
FOREST AND STREAM 
ill 
HE NEW YORK TIMES, THURSDAY. JUNE 16. 1910. 
Curtiss 
and 
osslbly a small amount of ex- 
■'dition. 
e this comes about, ordnance 
of destroying air craft 
\bly have been developed, 
bles designed to control 
such ordnance will also 
to the front. It Should 
the science of heavy^ 
, '<een brought, to sue 
ency and perfectio 
lery, is all basfl 
ectories made 
horizontal ang 
in a nearly vef 
’he latter case,'! 
nark which is 
urface. 
t been per- 
hitting ob- 
other na- 
that fac- 
ion that 
'1 much 
trd to 
Hamilton 
indorse 
WHAT CAUSED A HALT 
INHAMILT0N1FLIGHT 
Curtiss Finds the Quality of Oil 
Supplied in Philadelphia Forced 
the Flier to Descend. 
SOME PR< 
IS SOLVED 
Moot Points in Aviation Cleared Ue 
and AerialTravel Thus Made 
Less Hazardous. 
Glenn H. Curtiss, who was a makSj of 
bicycle engines before he waB»in 
’'»d over Charles K. HaBfcl 
‘-rday and found' HPt 
the flying 
winging 
Mobiloil 
’nrk 
them had worn almost through. Had it 
v orn all the way it would have released 
one aileron from the flyer's flexible seat, 
and would have made it impossible ever 
to regain a level keel once a sidewise wind 
1 had started the planes gliding off on a 
slant. 
The answer Curtiss found again when he 
landed at Governors Island was that his 
gil tank had rubbed against a brace on ac- 
unt of the engine’s vibration, and had 
Fit a hole in its side, thus dropping his 
gauge to " empty ” when he still had a 
en miles to travel. 
amilton's first accident, in which a 
(peller blade was snapped, occurred be- 
se engineers, planning a building on 
rernors Island, had driven a section 
the aviation field full of surveyors’ 
kes. Only the night before he snapped 
ire on one of these stakes, and in 
ing anotherchanceof spinning safe- 
met a 
fsj_ 
re. 
to. his second accident on the loni_ 
ight. Hamilton’s mechanic had seen the 
fan of light oil that a Philadelphia con¬ 
cern had supplied instead of the brand 
ordered, and had refused to accept it. A 
Times representative promptly dispatched 
a fast automobile for a can of the proper 
brand. Ten minutes before the auto¬ 
mobile was due to return light rain be¬ 
gan to • fall and storm clouds appeared 
in the west. Hamilton looked them over; 
he had set his heart on winning the 
round trip flight from New York and 
back, ana realized that every minute 
counted. He wasn't willing to await fair 
weather and exactly the right oil, so he 
seized the can himself, filled his tank, 
and in a minute or two more was up, 
the air and off. 
!! 
A GRADE FOR EACH TYPE OF MOTOR 
The grade of oil specially made for your motor is shown in our richly illustrated booklet 
“ What the Motorist Should Know,” just printed. Your copy of this book is waiting for 
you to send for it, and it will be mailed free, postage paid, the day your request is received. 
A 
Kxotei iJotor 
Ilf u»|3».'rk 
Ilf u>|Tork 
Vacuum Oil Company, JuDe 191 °" 
Vacuum Oil Company, 
Hew York, 
B.Y. 
29 Broadway, 
Hew York City. 
Gentlemen: 
Dear Sirs; 
I wish to let you know that the 
Oil which befouled my spark plugs was not 
I am pleased to report the success we 
have met with in the use of "Mohiloil" in 
your oil. I used MOBILOIL going to Phila¬ 
delphia and had no trouble. Owing to mis¬ 
understanding, I was supplied there with 
lubricating the engines in our aeroplanes, 
some other oil, which caused the trouble 
and to say that it maintained its reputa- 
resulting in my descent. Had I used Mo¬ 
biloil on my return flight, I should, un- 
tion in ray Alhany-Hew York flight. 
doubtedly, have made the trip home without 
Very truly yours. 
a stop. 
June 6, 1910. 
—.. 
Very truly yours. 
VACUUM OIL COMPANY, Rochester, U. S. A 
