1931-06-27 — Page 11

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THE HONGKONG TELEGRAPH. MOTORING SUPPLEMENT. SATURDAY, JUNE 27, 1931.

SEEK THIN AERO, PLANE,

Designers, Led by Dr. Junkers, Strive for

Stratosphere Type.

MANY KNOTTY PROBLEMS.

Their engines were equipped There is nothing new in high- altitude lying, but it is startlingly with high-speed centrifugal air known na super-charges. new to learn that the conservative pumps

at There accessories are Dr. Hugo Junkers is actually

necesar to ain

nince the power of the internni work constructing an aeroplane track entpet of air around the ed by the amount of oxygen it can travel in that rarefied region, above combustion aircraft engine is limit theft or as the stratosphere. absorb in its carburetor at sufl Aerodynamic engineers and meteo.cient density-to create the rologists agree on one thing: speeds plosive mixture. An engine may be level, but as the much faster than anything over at efficient at sea tained near sea level should be ensy plane climbs and the air becomen of attainment once the problem of less dense that engine lares power, reaching altitudes ter or twelve the propeller slows up, the plane miles above the earth has been loses speed and hence lift, and first. stop climbing, and, next starts solved.

ex-

But protection against the cold! LAND-AND-WATER must be provided alzo and the cabin must be scaled against both

Pro-

cold and the thin outer air. blems of ventilation are difficult. It is likely that they will be work-

CARS.

The "water-cnra" will bo accom pauled by a trailer and two motor-

ed out as they are in the orb Amphibians for Trade Malins, the explorer and cinema-

murine, with oxygen tanks and a chemical purification apparatus which consumes the zurbon loxide as passengers and pilots breathe it out.

Tour.

cycles. They comprise a travel. ling British Industries Fair. Headed by Captain Geoffroy tographer, and including two or three expert salesmen, the expedi flon le setting out to demonstrate to Europe and the Continent of [By Jack Frost.]

Africa that British goods are the best and to prove that British- When the stratosphere plane in Coventry. In apecial work-built vehicles can hold their own rendy it in likely not only to shop of one of the oldest firms in anywhere change the whole transportation

More than forty British manu- map but to revolutionize aerial the British motor industry there is warfare as well. Planes then will being completed the construction expedition, which will be away facturers are co-operating in the he completely out of range of of the world's most original care, well over a year. ground attack, and, while the which are shortly to leave this

Samples are being taken, also a efficient aircraft to-day are country on B 12,000-miles trade portable projector, and films it very little danger from anti-promotion tour of Europe and advertising the goods carried wi aircraft guns, the stratosphere Africa. They are designed to be shown at suitable pinces on

line will be onl of sight as well as out of range. Dr. Junkers cross the deniest rivers without route. A travel film of the trip, seems likely to provide new use of boat or raft, and propelled to enable us at home to know how blems for the military strategist

by a couple of canoe paddles, | far British goods are being used s well as now facilities for the saw these curious looking abroad, will be made for exhibi traveller.

'waterenrs" at the Riley Workstion at the conclusion of the trip. here. Two cars have been fitted with three-souter bodies and glant wheels, and surrounded by detachable electron frame carry-

CARS FOR BREAKWATER.

1

ONE OUT OF FOUR.

The Detroit Automobile Club

There are problems to solve, falling.

The super-churger, by compress. Ventura, Calif., has applied for ing, four on each side of the car, writes Lauren D. Lyman in New York, but theoretically they are ing the thinner upper at to seu-permission to build a breakwater large air bags which, when inflat reports that one out of every four or more, simulates on its ocean front. Old cars willed, wit enable the vehicles to float automobiles driven on the high- simple. The surprising thing is level pressure cha hard-hended engineers and le-sea-level conditions in the carbure-be dumped into the ocean and al-across any watercourse at such a ways of Michigan is unnecessari- Its lowed to fill with sand and rock height as to prevent harm to the ty jeopardizing lives through signers have stepped from the posi.ter, and the more maintains tion "thoretically sound" that re- eficiency. At the same efficiency to form the barrier, fuge of every cautious experimen in the thin air there is less work ter and dreamer in research--to the for the propeller and less head re- position "practical." The rewardssistance for the pime and higher that the plane are deemed worth all they will cust speels-granting

If attainment proves practical.

can be maintained in Its most eff-

The Atlantic will be crossed inient speed. position are the six hours from the mainland of suk. Europe to New York. Scheduled

It is the contention of the Ger-

service between New York and man engineer that the engine for Chiengo will be operated in from high altitude work will be heavy- ixty to ninety minutes and the combustion motor of the Dieget transeutuental lines will be flown type. Eliminating

in four or five hours. This is what the engineers conceive when they definerte the atralophere are plane,

the carbures for and using of spray atomized to

"Tege under terrife

pressure,

Dr. Junkers has had gren: necess with Diesel aircraft engines. Ifis success to date leads him to believe The resistance of the air is inst that he is the track of the motor

powerful as its ability to fe for the stratosphere plate, and the high altitude phone designer |

However, weather plait is void, bas to free his fact, which in artus design and performance fremtently cold that man has yet la ene establishes a vicious circle. Wingsrige machinery and ther acres Huurt 1x- designed of aufficient series to act efficiently in it. Dur spread to carry the load in the thin in the war a Zeppelin powered At the same time power with oll motors was crippled because plants and propellers must be baill the oil froze inlo to net eliciently in the thin air.

nir.

Little Sustaining Power in Upper Atmosphere

suid chunks. This condition occurred altern- peratures just a little below zeru. Even in warm weather temperatur as love as 50 and 76 below zero may be encountered where the 590-mil While the rarefled air cuts down an-hour planes are to ride, mud fuel frontal resistance or static resist must be well protected if it is to aner, it also offers less for the pro-run into the engines through lines. peller to bite info and hence tenda instead of being fed in chunks as to lesse

the probability of high the Zeppelin vrew had to feed their Fl::t༥L Furthermore, since speed moturs.

is an essential of life in the aero- The variable-pitch propeller is Fur use in the high- plane, loss of speed destroys, life raunted on and the plane falls off to denser re-altitude planes. The propeller at gions where its wings enn take hold on level is mounted with a flat its propeller and engine! angle in order that it may turn generate the speed needled to loop, fast in the dense ale. A flat pre- the plane aloft.

peller is also needed in rder that However. wind fortel experi- the plane may elimub efficiently. As ments have convinced the research the higher levels are reached and the pikd in- workers that comparative values in the air this out the stratosphere rúay shift and with Preases the angle or pitch of the the new values they hope to es-blades to able them to take tablish they are confident that they larger "bite" on the air. The Bat ean produce the high speeds need-blade corresponds to the low gear. of an automobile and the more

[,

Already in America there are sharply

variable-piich propeller trant types of commercial gear. The blade to the high transport and others that grade injis now a practie aeroplane acers- continues between. In the West, where the sury, and as research Boeing Company is its planes such propellers are sore la become back and forth and north and southmore flleient. Dr. Junkers more through the Rockies, they find the than five years ago declared that high-altitude flying depended to po big eighteen-passenger biplane very efficient dying machine. This small extent on using the variable.

pitch air crew.

Protecting the Personnel in Higher Strota.

pinne has an immense wing area. Its two banks of planes stretch | nearly a hundred feet. Its three motors turn up close in 1,800 horse. | . pawer, and with its cabins packedl The problem of caring for pilotn with passengers and mail this plane and crew still remains to be work can take off from emergency landed out. Oper il was thought in- ing fields 7,000 feet above sea level, practical to provide oxygen for while its most efficient flying level ljussenga, To-day trimotored is about 12,000 feet high.

Fords are regularly lying the Down around 2.000 feet. because) Andes ut. 19,000 feet and along- side each passenger is a small

of

the great frontal area of rubber tube with a glass mouth- large wings, high speed is obtained at the expense of the engine piece like a pipesten. When the Smaller transports, carrying al-high levels are reached the pilot most as large loads with engines of turns muster valve, sending two-thirds the power, develop high-exen through a

small pipe run- er speeds and are more economical ning the length of the plane. The passengers tap the line as they

lisa feel the need of oxygen. very simpla and works perfectly.

in service,

Super-Charged Military Planes Hold Records,

Clarence Chamberlain joined an oxygen line to the carburetor feed The highest altitudes so fur ut on the Wasp motor with which tained in practical flying have been Ruth Nichols established hur reached by the military machines, attitude record of 28,743 feat. Lieutenant Appolo Soucek reached Above 20,000 feet the engine 43,000 feet in solo flight, and a begun to lose power. When the year ago at Mather Field a whole pilot turned on the oxygen it pick squadron of army Alghters reached ed up 300 revolutions ʼn míuote 30,000 feet.

and the plane climbed once more.

engine.

The

Improper headlights.

The First Shipment

OF

AMERICAN BANTAM

AUSTINS

HAS NOW ARRIVED.

For Further Particulars Apply

GILMAN & CO., LID. HONGKONG.

he New LINCOLN

SEVEN PASSENGER LIMOUSINE

JUSTIFIABLE PRIDE

M°

[ORE than merely a luxurious means of transportation,

the new Lincoln stands as an indication of good taste that is inherent and discriminating, Lithe and fleet-looking, its graceful, sweeping lines reflect a perfect blending of beauty and engineering fitness. Spacious, rich in finish,

exquisite in equipment, to the most minute detail the new

Lincoln appears what it is-a motor car of distinguished

character. Abundance of power, free-wheeling transmission,

long wheelbase, wide tread, long springs, lowered centre. of

gravity-these new features make Lincoln motoring peacefully

relaxing and comfortable.

DURO MOTOR CO.

KOWLOON.

MOTOR UNION

INSURANCE C? IP Incorporated in England

(Under the auspices of the Automobils Assoolation)

PROMPT AND LIBERAL CLAIM SETTLEMETNS.

LOCAL AGENTS,

THE UNION TRADING Co., Ltd.

York Building,

Phope 87788.

Authorized Dealer: WALLACE HARPER & CO., LTD. 745, Nathan Road, Mongkok, Kowloon.

Authorized Service Dealer:" IDEAL MOTOR CAR CO. 410/20, Lockhart Road, Wanchai.

FORD MOTOR COMPANY, EXPORTS, INC., SHANGHAI

50000