Evening star. [volume] (Washington, D.C.) 1854-1972, 1928-09-02
New War Will Be Launched and All Resources of Technical Skill Will Be
Concentrated In Efforts Solve Pobms-Chief Detectives Cond
ered-Laboratory to Be Established for Purpose

by means of an ordinary radio receiver
without a loop.
The radio beacon and receiving sets
have been developed already to such a
point that pilot has merely to watch
an instrument before him in his plane
which shows a red light when he is
bearing to the right Of his desired course
and a yellow light when to the left of
It, The radio beacon was first used In
a tranSoceanic fight by Maitland and
Hegenherger. the first to fly to Hawaii.
and though not a success for this flight
ON account of mechanical failure, since
then 1t has been a complete success on
several transoceanic flights.
To pursue the course of an airplane
following the American practice, let us
suppose the radio sigma. is being sent
from the airport at which the pilot
wishes to land When the airplane is
within perhaps mile of the trans
hitting station or radio beacon, the
signals are. in the present state OF de-
Velopment. Intellectual. From this point
| in fog-tlying experimentation, the air.
plane can be directed by the so-called
leader cable" This consists Of an
electrically charged cable placed on the
ground leading from the point at
which the radio beacon becomes in
effective to and around the boundary
IF the airport An instrument III the
airplane records The passage of the
airplane over this charged cable At
temptS. as yet unsuccessful. have been
made to designate The precise alti-
tude at which the alrplane passes over
the leader cable This would be Of the
greatest Importance as an aid to land
ing in the fog. The leader cable Is
still in the early experimental stages
What boon it viii be To pilots when
all planes and Arrays are equipped
with radio direction finders! At least
the naval aviator will agree who, on
! account of his urgent desire TO make
| good time, started on his leave OF alb
sence by airplane In spite of the fog
| He was lost In the fog for nearly four
hours and travelled total of about 400
miles. He decided after finding little
opening in the fog where he could get
! through that 1t was high time to land,
as his gasoline supply was about ex-
| hausted He landed only to find him.
| self about 30 miles from his starting
lie had been travelling in circles all the
| time,
IN the present state of development
IN fog flying, 1t Is fair to assume
| that 1t Is feasible to fly between any
two given points. by means OF radio
| direction finders through fog but the
| still unsulved part of the problem Is to
| effect a safe landing through the fog
Much experimental work ON this phase
OF the problem has been done and Is
| being done, and hopes run high that
The key of the door Is not far beyond
our reach.
| This Is a third problem, one solution
of which Is being attempted by the de-
| Velopment of instruments to show ac-
eurately the height Of an airplane above
the ground, replacing the harometric
| instruments now in general use TO show
| the height above sea level
| In order to make safe landings
| through fog. once the airplane has
, reached the airport, an altimeter or In
atfument TO measure the height Of the