Evening star. [volume] (Washington, D.C.) 1854-1972, 1931-10-25

quireS that transport pilots shall have
at least 200 hours Of flying time ir
each six months as a qualification fol
renewal of their licenses. This is re-
garded as the absolute minimum OF
flying time required to keep q man In
good shape for safe transport opera
tons.
To expect q military pilot, whose
duties are even more complex than
those Of transport pilot to keep In
trim on only 100 hours a year is re-
garded by many experts as ridiculous
Out of this limited time must come
the flying required for machine gun
and bombing practice, cross country
training, instrument training and for
nation practice, which are so necessary
to keep a pilot in condition for COM
bat flying
The order to economize on gasoline
and oil has come at a time when, due
TO overproduction, the price of these
products Is at its lowest point since
the World War, II was pointed out.
In their plea for increased funds for
purchase of gasoline and oil to keep
h operation the planes already on hand
and 70 prevent deterioration Of the
ofilcer personnel to a point Of worthless
ness for emergency service, the officers
Of the Air Corps Reserve will have the
support Of the 10000 members of the
Reserve Offlcers' Association Of the
United States, 1t Is understood. The
plea also will be backed by the Ma
tional Aeronautic Association and other
civil aviation bodies.
The curtailment of flying training will
be keenly felt in the National Capital,
which is said to have more Air Corps
Reserve pilots than any other single
city In proportion to population. Ef-
forts are being made to build up q
thoroughly organized and trained re-
serve attack squadron, but these plans
are being blocked by lack Of training
funds.
Radio Aids Urged.
Until airplane manufacturers pro-
duce electrically bonded planes regu-
larly as standard equipment and until
the builders Of aircraft engines turn
out electrically shielded engines on a
production basis the full possibilities
of radio in aviation cannot be realized,
in the opinion Of members of the De-
partment of Commerce LiaiSon Com
mittee on Aeronautic Radio Research.
The committee appointed to aid in
co-ordtnating the aeronautic radio re-
search work of the Federal govern
mental and industrial organizations,
with view TO early solution OF the
most pressing radio problems with a
minimum Of duplicated effort, has Just
submitted its final report.
In this report the committee makes
q strong plea for cooperation between
engine and airplane manufacturers in
the matter Of shielding and bonding.
Bonding, which involves the connection
Of all metal parts of the plane into q
single electrical unit, and shielding,
which involves the prevention Of high
tension electrical leakage from the
motor ignition system, are necessary to
aircraft radio operation.
The committee submits to the manu-
facturers detailed information on good
practice in bonding and shielding. This
Information, the result of prolonged in
vestigation by Federal and civil experts,
covers every item Of the work necessary
on planes and motors to insure freedom
from interference and leakage.
Air Aids Listed.
Radio development, the committee
pointed out, is only part of the vastly
important group Of aids to air naviga-
ton. Discussing in general the various
aids to navigation, the committee says
in its report:
One OF the promising DEVELOPMENTS
for the future is the increasing thought
given by research agencies to proper CO.
ordination Of the various technical aids
to air navigation. These aids are, in