The Idaho recorder. [volume] (Salmon City, Idaho) 1886-1927, 1919-12-26
naolo Direction indicators Are
improvements to Save
LIE and Time.
NEED FOR CASH IS ACUTE
s"' Flames Used in Mail Service In
.eo states and 81 in English
enannel Service Compared
ro9 No Longer Menace.

New fork.-New devices n x.fa-
guard mail pilots and assure rho sura
-, 'e OF mail planes through all
n'"us ot weather are now being In
ai'eu on mail planes and Mt the New
ark ana beliefonte flying fields. accord
'ns 10 statement by Otto Praeper.
e'uhu assistant postmaster general
:" eiiarge OF aerial mail. Radio direc-
'ioh Indicators and new compass are
among The improvements which will
save Doth life and time.
III MS stat.'p.nt Mr.. Prae.er pocs
ieiuiis INTO the aerial mail situation
:" 'nis country, pointing out that much
iepehos upon the attitude of congress
toward appropriations for the exten.
sion OF the service. He contrasts ,he
e'ght airplaDes in daily mail carryin.
operations throughout the entire Unit.
eu states with the 81 TRANSPORTING
mail each day In Great Britain and
across the channel.
The fact that European countries
are operating more extensive mir mail
services than the United States is due
soieiy 10 the reason that the post office
department has not been able 10 Obtain
appropriations for the desired deyeI.
opment. he says. Concerning the Inn.
provements in air mail carving he
says:
win the cooperation of the bureau
OF standards, the signal corps OF the
army and the radio section of the
navy, the aerial mail service has de-
veioped most powerful loop radio for
communication of mail planes and
their guidance through all sorts of
weather, even fog. This equipment
Is now being installed on the new mail
planes and landing fields at College
Park, Newark and Bellefonte, Pa.
The radio set has tremendous
range for sending. Its possibilities
have not been fully determined. In
stead of requiring masts from 200 to
oeo feet high, the aerial wires are be-
Ing raised on masts only 23 feet high.
Field Marking Equipment.
Included In the equipment is a field
marking radiO device which enables n
pilot TO steer exactly for the center OF
his landing field. although 1t may be
invisible and obscured by clouds, rain.
snow or fog. The tremendous import
ance Of this invention. which has been
perfected by the bureau OF standards
On the Initiative of the aerial mail
service, Gun be barely realized by those
unfamiliar with the art OF flying.
Fog Is the aviator's most dangerous
enemy. A majority of crashes and bad
landings are caused solely by the in
ability of the pilot to determine his
position and the location Of suitable
landing place.
"A new compass has been devised
and put In service on the small planes,
but one of the most important contri-
buttons to aviation being worked out
by the aerial mail service. with every
prospect of success. Is a nonmagnetic
and nOngyroscopic compass which will
overcome the unreliability OF the mag
netic compass caused by vibration and
other disturbing features OF an air
plane In motion.
Through the encouragement and
actual assistance of the aerial mail
service an American inventor has
created a self-cleaning spark plug for
the powerful high-compression type OF
Liberty motor.
I'VE have every reason 10 believe
that these new inventions will do much