Evening journal., 1919-02-05
! MAY REVOLUTI]NIzE
ATRPLANE FLYING
New Stabil ger Said to En-
able Aircraft to Stand
Still in the Air
ROOF LANDING
is MADE EASY

American experts In airplane con
struoaon and development exhibited
yesterday deep interest in report;
brought 10 this country from France
and England by returning aviators OF
series or experimental Il ghts That have
been made there 10 test out new
fern Oh stabsizer, which they say
stands an even chance Of revolutions
j iz3n1 plane construction and operation
TIC Invention was tried out hrst a
Che recent interaIlled aviation meet IL
France, but lhe tests were sec. el anl
no public report has been made OF
them yet. Nevertheless, the returned
aviaiors and others who have seen tas
invention work say it Is known as an
alsValor propeller and that II may Dc
attached TO any airplane.
In operation IL functions much aftaI
p: ihe fashion Of a ceiling fan, only us
pvimary object Is 10 lift or drop tha
plane In any given space. The propel-
Ter Is placed upon the top plane and Is
SO geared TO the engine that II oper-
ates a tractor, or pusher propeller thal
gives II headway. Both tractor ana
tane0usly or Independently.
II the invention finally proves prao-
Teal. experts who discussed Il said, av-
iation may be free OF the fatai landing
accidents that caused so many dea.hs
among student aviators during inc
t-alning process. Once the Invention
IS properly set, those who have seen
it assert, the alrplane may be made TO
ascend or descend in a perfectly sta
bllized posiML<-. Such a descent Is
possible with the invention even after
the airplane's engine has stopped or
gone wrong, they said.
The greatest secrecy Is being main
talned by The inventors and testers OF
the Invention until after The nnal test
fliehts have been made.
The inventors are said to be English
men. who have been working on The
sterilization problem for a long time,
but their names have not been permis-
led 10 become known.
An additional claim made for the in
yention is that Il will cause the plane
to hover In midair and In It's Identical
displacement space. Which means that
II an aviaios desired 10 allght upon a
roof or the deck OF a ship all he would
have 10 do would be 10 gauge distance
and time. shut on his tractor. run out
his headway and switch on his eleva-
tor propeller.
Then he would hover tie roof or
deck selected f0- the landing.
BY gradually cutting down the revo-
iutlons OF The propeller, gravity event
ually would overcome the stability and
drop the plane lightly upon the roof
All that would be necessary for a sub
-sequcnt ascension from the roof Or
deck would be to increase The revolu-
tions until the lifting power again Is
greater than the weight OF the ma
chine.
one OF the sponsors for the lnven-
tion is prominent Englshman who
has been interested In aviation for
years. lie said he-had seen the fnvep-
tion in operation and was enthusiastic
over The certainty OF It's proving prae-
tical. He was sworn 10 secrecy, how
ever and for that reason refused TO
permit publication OF his name.
"Men whom ! have talked with re-
Gently" he SAID, "and who are familiar
with The invention. predict that within
a few years airplanes will be as com
monplace as taxicabs and far more
convenient and comfortble This sta
bllz.ng propeller viii ellm'nte prob
ably so per cent OF the danger OF the
airplane under present conditions"