Evening star., 1932-01-03

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| power to the particular job in hand.
Tactful Discoura cement.
| Many OF the country's leading air.
| ports haF4 agreed upon a tactful but
! thoroughly effective method of discour-
! aging smoking in the vicinity Of hang
| ars and fuel pits where there is con-
| siderable fire hazard.
mo smoking" S'gGs as rule mean
| little or nothing to the average smoke.
! Rules against smoking are difficult to
| enforce without offending patrons OF
prospective patrons The problem in
/ the case of city offici0ls or important
people was especially distressing.
Those days, however, are pretty we'll
over fer the airports which have adopt
! ed the new system Now. whenever an
airport attendant sees visitor smoking
! in a place where he shouldn't be smok-
! ing he takes fire eXtinguisher in his
hand and attaches himself to the smok-
| ing visitor like shadow.
The hint almost without exception.
is gracefully and quickly accepted, very
often without a word being spoken.
Another fueling stunt that airport
officials have had to learn is to avoid
filling to capacity in cold weather the
tanks CT airplane5 which are likelv to
] LC lllbksO IllO htlIIl IldIlSdIS. IIlGS
have found th2t the gasoline. expand
ing, will overflow through the tanl;
vents and cause a ccrioI3 fire marace
A 50-Segree difference in temperature
VIII c7uSe ah expansion Of about 2L2
gallons per 100 gallons.
Aerial SpTirkiing Carts.
Life FOR the Panama mosquitoes is a
succession of unhappy surprises thanks
to the Army Air Corps, which is bent
on exterminating ta2 little pests. The
Air Corps has bombed the MOSQUITOES
and their breeding waters with various
and sundry unpleasant mixtures in an
effort TO induce them to die peaceably
Mixtures containing paris green and
other substances calculated to do harm
to Mr.. and Mrs. Anophcle5 and their
offspring (and also their Aunt Minnie
and Uncle Zeke) have been tried
Elaborate hoppers have been built into
bombardment planes cargo planes and
observation planes for distributing these
substances where they would do the
most good-or, rather, the most harm
The noXtouS dusts, however, were not
found to be overly effective. After four
or five hours the poison particles would
sink and the mosquitoes would con-
tinue merrily about their business OF
raising welts and families 1t Is true
that the dusting business would intro
duce periods of servere depression into
the mosquito propagating business, but
after the depression there would be
stirring periods of business imitation and
the mosquito broods would breed, while
mankind would brood
Oiling Of the breeding waters wat
difficult and costly because the stuff
had to be spread by hand, no satisfac-
tory device being known for spreading
oil from airplanes.
Fiendish Ingenuity.
Now, however. at least from the
standpoint of the mosquito, man has
exercised a piece of fiendish ingenuity
He has developed a device for spread
ing oil from airplanes and tests are
being made In Panama Of the first
aerial sprinkling cart. 1t appears that
if 1881 is to go into history as a finan-
cial black spot, 1882 is TO 60 down in
mosquito history es year Of unparal-
lcled disaster.
The mosquitoes may garner some
meagcr consolation from the knowledge
that the aerial gprinkling cart has cost
its originators a deal Of head scratch
ing 1t isn't sufficient just to pour oyel
q pipe in the bottom OF the plane, the
Investigators found 1t must be sprayed
in just the proper proportions and must
be of just the right consistency. Hun
dreds of tests were maze before any
SORT of success was attained.
For the present tests which hold
the most rosy promise OF ell, the All
Corps is using an O-19 observation
plane. The Gil is carried in tN-gallor
hot water boiler and is sprayed by all
pressure from 10-gallon pressure tank
The oil is sprayed from 10-foo
spreaGer pipe and many sized hole;
were tried. each with variety Of OF
consistercias, before the proper com.
bination vas found.
II the tests, when completed, prove
satisfactory, larger installations will b.
made for use on bombers and the PAM:
will be on.
The Icy Winds Blow.
Winter experimental operations o.
the U. S. s. Langley ordered to de.
teYminc how effective the big ship;
and their planes will be under Arctic
conditions when fight decks are en-,
crusted with ice and The te.npor2:.,"t
is entirely too low, have cotton OF
to an impressive start.
The Langley went to Bar Harbor
Me, TO start its Winter career anC
got such a mess Of Arctic climate
all heaped together, that few of he's
crew vii lament when the old ship
nCSc Is turned toward trcpic waters
later in the season.
Preparations for fight operations
were made in bite" cod wind and
by the time the ship had steamed Gu
OF the harbor and engines o. the planel
had been started, heavy squalls o.
light Sncw and decidedly unfavorablt
. flying weather had Get in, making
it very evident that If the Langle,
had come to seek Winter condition.
she had been eminently successful II
the quest Everything except actua
flight was accomplished.
The next day was mild but tina
night a gale blew up Of such fore,
that the ships boats could not b
run to shore for the liberty party. I
wsF not until the following Afternoon
, that the thoroughly bedraggled mer
were returned to the Langley by tn,
crew Of the Cranberry Island Coas
Guard Station.
The Langleys people were most ia
vorably impressed by the fine seaman
e ship and hardness OF the Coas
g Guardsmen. The chief petty Office
in charge Of the Guard boat had icicle
. not only on his cap but also danglin
e gypsy fashion from his earS--a cir
/ cumstance which thoroughly impresse
r those aboard the Langley that the
j had found all the Winter they care
r TO have anything TO do with.
= ANSWER TO YESTERDAYS PUZZL'