TTP t T7IT 71 DP OFFICIAL ORGAN OF THE ROYAL AERO CLUB

62 Pages·1610·47.08 MB·English

No. 1845
Vo!. XLV
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O FFICIAL ORGAN OF T H E RO YAL A ERO CLUB
IPS
J T» T T P t T7IT 71 D P
THE SLEEVE VALVE EXPLAINED
There is nothing complicated about
“ Bristol ” sleeve valves or their operating
mechanism. Basically, each valve is a steel
cylinder with four ports at the top and an
operating band at the base.
A ball-joint is attached to this band to
accommodate a driving-crank, and all sleeves
are operated through a train of gears ;
the master being located on the engine
crankshaft. Working parts are reduced to a
minimum.
There are no cams, tappets, rockers, or
valve springs ; therefore valve bounce and
its attendant loss of power is impossible.
Once the engine is assembled, valve
timing is positively determined ; and the
usual valve inspection and adjustment
routine, so necessary with other engines, is
entirely eliminated.
Once you realise the advantages of the
sleeve valve you will understand the
LEEVE VALVE AERO ENGINES
M ay 4TH, 1944 FLIGHT i
Limits of 0*0001 in.
The valve box shown above is machinea
to limits of 0-0002 in., but our plant is
capable of even finer work.
Even today, working to limits of one-tenth of a thousandth of an inch is not exactly
child’s play, and requires a first-class plant and highly skilled labour. We are
fortunate in having both: and when they can be released from the Service requirements
upon which they are exclusively engaged, we shall use them on the more inspiring
but not less precise products of Peace.
Our plant, which includes a large number of automatic lathes to take up to in.
diam. bar, is capable of very large productions indeed . . . we shall be pleased to
assist with your programme of precision problems.
post-war
4 k %v.
BROCKHOUSE
CXCOMPANV/^
•2 Advertisements. FLIGHT
* *»
TH E S I G N OF A V IA T IO N S E R V IC E
Lockheed's service emblem six mobile repair units—machine shops on wheels
represents a multitude of use- that shuttle between remote flying fields. Wherever
ful operations vital to wartime United Nations planes fly—and are kept flying—the
aviation. At the home factories Lockheed service emblem symbolizes skill and care-
it marks the big service hangars ful workmanship. These also are the traits that two
where warplanes are modified company-operated training schools teach Army and
or overhauled for combat use Navy ground crews.
in many different theaters of global war. 14,000 men have learned aircraft service and main-
In Ireland it flies over huge repair bases where thou- tenance as taught by Lockheed. Today, their knowl-
sands of Allied bombers and fighters are checked, edge is helping to win the war on every fighting
repaired and sent back into action. In England it front, for they are not only helping keep Lockheed
identifies several additional repair bases, as well as planes in the fight, but 32 other types as well.
Cctdzheed
L O O K T O F O « L E A D E R S H I P
L O C K H E E D A I R C R A F T C O R P O R A T I O N , B U R B A N K , C A L I F O R N I A , U . S . A .
M ay 4TH, 1944 FLIGHT Advertisements.
A CAPITAL INVESTMENT
The needs of war have led lo the design and manu­
facture of many new engineering devices. Many of
these will survive to serve* in the days of peace.
Among them will be the Yokes Slave Filter. This
Oil Filter is mobile ; it was specially designed to
provide the finest filtration of lubricating oils. It can
render service, and ensure the dependable running
of buses and transport vehicles everywhere, for there
is no escaping the dust and * grime of our urban,
industrial civilisation which is the prime cause of
engine wear. (In London alone 200 tons are de­
posited out of the atmosphere on every square mile
The Yokes Slave Filter— one of the latest of Yokes
3,000 models designed to meet all filtration needs—
is 99*9 per cent, efficient and is the result of a quarter
of a century’s manufacturing experience. In every
sense of the word it is a capital investment— the
surest safeguard against engine wear and oil wastage
A s in war, so it will be on active service
in the days o f peace.
PIONEERS OF SCIENTIFIC FILTRATION
Designers, Patentees and Manufacturers of Air, Oil and Fuel
YOKES SLAVE FILTER Filters, and of complete Cleaner Installations and Silencers.
FLIGH1
May 4th
1014-
Artvt. 4
P R O P E L L E R^BW A D E 5
SPITFIRE
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The performance of Jablo Blades on Britain’s
finest aircraft including the Halifax, Spitfire,
Hurricane, Beaufigliter and Wellington has
earned them their reputation as . “ The best
in the world
SEAUFIO»T€ft
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Jan
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in peace !
him*
22, OLD Q U EEN STREET, LO N D O N , S.W .L
M ay 4'i'H, 1944 FLIGHT - Advertisements.
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A\ R WORK
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A I R W O R K L T D
OVERSE
134, BATH
Advertisements. FLIGHT
6 May 4m , 1944
Cfoefcfkt'm
THAT OUR PILO TS MIGHT E M V
C U R T ISS P - 4 0 • • • Cradle of Heroes Horn in the Shy
Enemy hordes stalked the global skies! decorations. Honor the pilots! Salute the
Into the blue against them flew pilots of the scrappy Curtiss P-40 fighters which carried
United Nations, airborne on Curtiss P-40 them to success. Together, against over­
wings. This is history! whelming odds, they fought to finally wrest
From the earliest days of World War II, air supremacy for America and its Allies.
these teams of plucky pilots and their Curtiss
P-40’s have swept the air in every theatre of
conflict. On occasion, "lone wolfing” . Other
times in squadrons! Their total formed a
mighty armada whose blazing guns have
written an unparalleled saga of successful
aerial combat.
In the battle-raked heavens throughout
the world, these pilots have won undying
glory, symbolized by distinguished military
MEMBER. AIRCRAFT WAR PR 0 OU CTI ON CO U N CIL. E AST CO AST, IN C.
Representative: Export Sales Division.
SO, R o c k e f e lle r P la z a . \ e w Y ork 2 0 , IV.V.
FLIGHT,
May 4th,
1044.
Advt. 7
8 Advertisem ents. FLIGHT M ay 4TH, 1944