Evening star., 1936-07-19

made here and at Pittsburgh, Akron.
Cleveland, Detroit, Grand Rapids and
Milwaukee.
The new equipment will do away
with the system of operating separate
day and night frequencies to meet
changing operating conditions.
"An exclusive feature Of the new
apparatus" 1t was explained by w. S.
Rosenberger operations manager Of
the line. "is that the system will be
the first airline short-wave chain to
operate through all atmospheric condi-
tions on a single frequency. This char
asteristic makes possible create:
simplicity of construction and opera
ton"
Although a majority of the new
stations will have a power Of 200
watts, that at Washington Airport is
to be a 125-watt installation. The
new stations, because Of improvements,
probably will have range comparable
with that of the 400-watt stations they
Supersede.
ELECTRICAL treatments which act
with more certainty than an X-ray
to disclose flaws In the metal parts Of
aircraft engines, not only on the sur
face but beneath it as well, now are
used in the regular inspection and
overhauling Of air transport engines.
The treatment, known as the magma
flux system of metal parts inspection,
now is used on every part Of each
engine subjected to overhaul in the
headquarters plant of TranScontinental
g. Western Air. Any defect in the
metal, though 1t may not appear at all
on the surface, is disclosed by mag
netizing the metal and then applying
an iron paste solution. Polarity estat-
lished about the defect by magnetism
affects the paste. showing by its form
the size and shape of the defect.
The electromagnetic inspection Is
applied to each part of every engine
as it is taken down for overhaul. En-
CINE parts are cleaned for inspection
by being lowered into large tank ard
sprayed with chemical vapor which
removes every trace Of grease, oil and
foreign substance.
Following the electro magnetic in
spection. parts which pass the test are
returned to the assembly line, defective
parts being discarded. Magnetism Is
accomplished through the application
of high amperage at low direct cleo
trical voltage; demagnetiZing by ap-
plication of alternating electrical cur
rent
THE landing field at the Naval Prov
ing Grounds. Dahlgren, Va, IS
out of commission for an indefinite
period, while hard-surfaced runwsys
are being constructed Notice has been
sent to all pilots by the Navy Hydro
graphic Office that no landings or
take-offs will be permitted from the
Dahlgren field until further notice.
p ECORDS in both operating per-
formance and number of revenue
passengers carried we're established last
month by Eastern Air Lines, according
to an announcement by Capt. Ed
ward V. Rickenbacker, general man
ager.
Only one round trip between New
York and Washington was Cancelled
out of a total Of e29 trips scheduled
for the month. resulting in record
operating percentage of 1923. OF the
total of 560,e83 miles scheduled, the
cancellation affected only 406 miles.
With a total of 1862 revenue pas.
sengers carried, last month showed a
gain of 31.8 per cent over August.
1898, the previous record month, dur
ing which 8,099 revenue passengers
we're flown.
TNDER an amendment to previous
regulations governing the grant,
ing of hours of credit for reappoint-
ment in the Officers Reserve Corps.
Air Corps Reserve officers who fly on
an inactive status will be given three
hours of credit for each hour spent
flying in military aircraft, the War
Department has announced, For ex-
ample. 20 minutes spent in flying will
be credited as one hour.
One hour credit will be given for
each hour spent in plotting civilian
aircraft and one-half hour credit will
be allowed for each hour spent in
duty as co-pilot on civilian aircraft.
Credit for such flying in civil air
craft will be given only when an
authenticated record of such flying Is
submitted.
It was explained that credit for fly
ing will be given officers only in con-
formity with the aeronautical ratings
they hold. For example, an officer
holding q pilots rating will be credited
with pilot time only: one holding an
observers rating will be credited with
Observers time only; one holding both
ratings will be credited with either
pilot or observer time, depending upon
the mission flown.
Non-rated officers will not be cred
tied with flying time. An observer
will not receive credit hours for flying
in civilian aircraft.
COMPLETING a 6,600-mile air tour
Of the United States in three
weeks, Mr.. and Mrs. C. H. Spence.
723 Fifth street northeast, are ex-
pected to land at Washington Airport
this afternoon.
They visited Yellowstone National
Park, Glacier National Park, Catalina
Island. Boulder Dam and the Grand
Canyon, making practically the entire
trip on scheduled airlines. They spent
each night in a hotel. flying only dur
ing daylight hours. They also visited
Spokane, San Francisco, Los Angeles,
Salt Lake City and Chicago.
A DDING 10000 miles a month Of
new schedules, United Airlines
during the past week set a new all
time high mark of 100000 miles Of
scheduled flying each month. The new
schedules, arranged to accommodate
record-breaking Summer air traffic, in.
clude sixth daily coast-to-coast fight,
making a third overnight schedule
across the continent.