The daily monitor. (Mount Clemens, Mich.) 1940-1942, 1941-01-03
US. Air Power Plants are Pegged As WorIds
Roscoe Turner's Exploits
Helped Seal Superiority
Production l. Sole Dishsartsnins
Foetos Feeins Air Defense Plans


Defense Plans
ed for . 1000 horsepower out
put.
Improved Wright engines, rat
ed at 1850 Horsepower. are
speeding the longer.rsnge PAN
American Airways clippers
across the Atlantic. Wright, too,
has engines In the 1000 horse
power class.
None of the new American
aircraft power plants weigh
much more than q pound for
each horsepower they Develop
Engines Of 1000 Horsepower
are known to Be in the expert
mental stage abroad. but they
are Of the heavier V-shaped. H.
Quid-cooled, milne type.
Much has been said In re,
cent months, beginning with .
statement by Secretary Morgen-
thau Of the treasury department
last winter, about the potential
''bottleneck." Airlines with en-
gines ON order were. IN fact,
asked to release them 70 the
Army Air corps.
Continuance Of the bottleneck
will depend in part on the air
corps engine procurement policy
the demands Of Great Britain
and on how fast this country can
overcome serious handicaps h
liquid-cooled engine manufac-
ture. For the last two years, the
air corps has favored equipping
it pursuit planes with in-line
liQuid-cooled engines, arguing
that they could be better stream
lined than planes with air-eool-
ed radial engines. Rsdials are
star-shaped, with. larger frontal
areas. @t
For years, the Navy has &C.
cepted the radial a it, standard
power plant. 49,.
The United States y ut the tag
end of the parade on aircraft In
line engine development.
Our only large milne. the Al
lison with . rating Of 1000
horsepower, frequently 10 torn
down for = complete overhaul
every so hours Of use at air
corps bases.
milne engine production IL
still only q few hundred units
. month, though the General
Motors Corp, parent company
OF the concern manufacturing
Allisons. announced recently l.
900 engines . month would come
on the line by November, lo4l.
The reason the British are IN
such dire need Of American en-
gines witt high horsepower out
put isuN,at In two olstning earn
paigns the Germans, destroyed
existing and potential bases from
which the British could bomb
effectively with their standard,
short-range, medium weight
planes.
When the Germans seized
Norway and conquered the low
countries and France, they
forced the British to base I'LL
their bombardment planes In
England.
The designs for British planes
had not been drawn with that
contingency In view. Today.
they must have American planes
Of sreat power, range and bomb
carrying capacity such % the
consolidated "a" and the later,
faster versions OF the Bosing
"l7."
Both types, four-engined. were
developed specifically for the Pc
culiar problems Of 'American de-
3Gnee. Our bombers h a.v
lengthy coastlines, . vast con-
tinsnt ana outlying possessions
. protect. Z 49, w
Once ~ pgubl6ua Of British
needs h reeenr1Jed setialActpr-
" with .Aynor3c1n .needs 81 Cir
reorun1ment ~ hcaa1EtnS 10 Tn
snyine bot&llnockw1Il depend q
IT, .accelern1od peoduc1iea q
hfgh-powerods oir- cooled ehgines
and The further devolopmont and
production q Nadid-eooisd
Great Britain b Using liquid-
cooled Roofs 1ovce lngines 81 IL
hurricanes and Spat0res which,
h design are ats Ience I've years
ola. On both Drifieh md q. q.
Army, Air Cogps contracts ~
now proposs NJ tsplicote. tl,at
engine IN Ameliea6 stoctoeiQa !
How .sdvialh1e tliae +, 4 Wi11
remain tn hlgtogy - jln1os..
Sens peculiar tfncls, 1bout air
plane Speeds md engine typos
are esnerging ,ffpm snglno6rt
arguments 1ostsrsd b. lie -
mands of TIE cir corps Tor more
efficient airplanss.
Temeerow: IAo bo0boe =
Amsrisa's Deinslpal or 1elelse
1891 4