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Aircraft Engineer ONE SHILLINC |7 AUGUST 1950 SSpf and AIRCRAFT ENGINEER OFFICIAL ORGAN OF THE ROYAL AERO CLUB A.W. METEOR N.F.ll SIR W. G. ARMSTRONG WHITWORTH AIRCRAFT LTD., BACINTON, COVENTRY Member- of ttm Hawk*'- $id!<Je?#y Group FLIGHT 17 AUGUST 1950 BAROMETRIC CONTROl ATMOSPHERIC PRESSURE INPUT PRESSURE SERVO PRESSURE DELIVERY PRESSURE MANIFOLD PRESSURE SPILL TO ATMOSPHERE Shut-off Cock Pressurising Valve and Dump Burners The LUCAS Barometric Control is a precision instrument which maintains the correct pump delivery pressure in accordance with variation in altitude and forward speed. :: - LUCAS JOSEPII LUCAS (GAS TURBINE EQUIPMENT) LTD. BIRMINGHAM 17 AUGUST 1950 FLIGHT The WYVERN TF2. The world's most modern turbo- jet naval strike-fighter (ARMSTRONG SIDDELEY PYTHON) recently successfully completed its first deck landing trials. WESTLAND AIRCRAFT LIMITED • YEOVIL • ENGLAND 1 FLIGHT 17 AUGUST 1950 Fully equipped for all day and night operations Cleared for all climates in the world THE VERSATILE THE FA1REY AVIATION CO., LTD., HAYES, MIDDLESEX First Aeronautical Weekly in the World Founded 1909 and AIRCRAFT ENGINEER No. 2173. Vol. LVIH. THURSDAY, 17 AUGUST 1950 EDITORIAL DIRECTOR G. GEOFFREY SMITH, M.B.E. Air Commerce Shows the Way ED/TOR MAURICE A. SMITH. D.F.C. HE recent turn of international events renders (he present an appropriate time for a stocktaking of post-war aviation. Such an examination discloses that ASSISTANT EDITOR T while in the military field the state ol air power among the Free Nations H. F. KING, M.B.E. gives no ground for complacency (rather, in some respects, is there cause for real TECHNICAL EDITOR concern) civil flying shows up in a far happier light. C. B. BAILEY-WATSON, B.A. Although from the political and economic viewpoints the scene could hardly have ART EDITOR been less favourable, the degree of achievement represented by current developments JOHN YOXALL in commercial flying is truly remarkable. In the short span of ten years we have seen airliners grow to over a hundred tons in weight, while operational cruising Editorial, Advertising and speeds have steadily risen from 150 to some 300 m p.h. Pressurized cabins now Publishing Offices : permit flight in hitherto unimagined comfort at levels high above the hazards and discomforts of treacherous weather; the introduction ot turbine-powered airliners DORSET HOUSE, is imminent; and new radar and blind-flying systems have been perfected. All these STAMFORD STREET. factors, and the revolutionary designs for airport terminals now in hand, justify high LONDON, S.E.I. hope for the next decade. The vast technical improvements within the last year or two have brought about Telegrams : Flightpres, Sedist, London. Telephone : Waterloo 3333 (60 lines). an astonishing increase in the volume of airline business, conservatively estimated now at six times its pre-war level. Filling the transport vacuum which followed in Branch Offices : the wake of war, considerably more than two hundred airlines were, by 1948, COVENTRY operating an unduplicated route network of more than one million miles. The 8-10, Corporation Street. growth to date represents a payload increase of more than one-half during each Telegrams : Autocar, Coventry. Telephone : Coventry S2I0. successive post-war year. BIRMINGHAM, 2. By the nature of its transport industry, America has enjoyed the lion's share of King Edward House, this advance, and in 1949 the airlines of the U.S.A. made a record profit of almost New Street. £16 million—an increase of 39 per cent on the figure of the previous year. In Telegrams : Autopress, Birmingham. Telephone : Midland 7191 (7 lines). Britain, although it is still far from profitable, the air-transport business is now MANCHESTER, 3. developing at an encouraging rate, while throughout the rest of the world widespread 260, Deansgate. optimism is entertained for the bountiful years now clearly seen '' around the Telegrams : lliffe, Manchester. Telephone : Blackfriars 4412 (3 lines). corner." Deansgate 3595 (2 lines). GLASGOW, C.2. Round the Table 26b, fUnfield Street. Telegrams : lliffe, Glasgow. Not only in material results is this progress notable : equally remarkable is the Telephone : Central 4857. atmosphere in which the results have been achieved. In international operations there has been a significant absence of power politics, cut-throat practices, and SUBSCRIPTION RATES Home and Overseas : Twelve months double dealing. Most of the problems—and they have been diverse and intricate— £3 Is. Od. Six months, £1 10s. 6d. were resolved in approved " round-table " fashion. The valuable work of I.C.A.O. U.S.A. and Canada, $10.00. and I.A.T.A., embracing virtually every aspect of commercial aviation, has been BY AIR : To any country in Europe (except Poland). Twelve months, especially commendable. As an example of I.A.T.A.'s efficiency the speedy solution £5 Is. Od. Six months, £2 10s. 6d. Canada and U.S.A. Six months, $16. of the complex world-fare problems attending last year's devaluation comes readily to mind. Worthy contributions to air safety have been forthcoming from I.C.A.O. and the recent improvement in the accident rates for civil aircraft of all countries is due in large measure to the uniformity in international safety standards for which this body is constantly striving. In this issue: Air travel has ceased to be an adventure. Throughout the world it is regarded no Aerial Advertising - - 186 longer as a novel facility but as an absolute necessity, a generous portion of which no progressive nation can afford to be without. Commercial flying has been its Livingstone Airport own salesman, and its prosperity is, perhaps, primarily attributable to the guiding principle of co-operation between air crews, operators, and the governments of many Opened 188 nations. tijrdrauJics 191 If the improved status now enjoyed by practically every airline in the world is any yardstick, it would seem that such precepts are well worthy of adoption in other Shooting Stars in Korea- 197 spheres of human activity. In civil flying, at least, there is little cause for reproach. Seafarers 198 The right road has undoubtedly been chosen and the way ahead promises easier The Versatile B-29 - - 202 going. r86 FLIGHT, 17 August 1950 A photograph taken last month : Air Kruise (Kent), Ltd., claim to be the first operators to resume banner-towing since the war. The banner flown by the Auster is of the simple small streamer type : a larger-scale " silhouette " method is described in this article. AERIAL ADVERTISING Banner-towing and How it is Done : Some Recollections of Pre-war Methods By H. J. COOPER AIRCRAFT towing advertisement banners - were a f re- So quickly do the years pass that the spectacle of an aircraft. /% quent sight in pre-war days over numerous cities and towing an advertisement banner may be unknown to our seaside towns, although this kind of flying, like most younger readers; and there are indications that older people,"- interested from a business viewpoint, are in search of informa-r* other forms of civil aviation ceased when WSL: was declared tion. In this article, one of the most efficient methods used* in September, 1939. But at that time legislation was in just before the war is described in detail. fact under way to prohibit aerial advertising, and the ban Now that petrol rationing has ended, banner-towing is was to come into effect officially on October 1st, 1941. beginning again, as the heading picture shows. In pre-war In about 1936-37 many letters appeared in the technical days the practice met with some public opposition, not only and lay Press complaining of the "pestilential nuisance" on account of aircraft noise, but because (in the words of of low-flying aircraft carrying banners and making far too one objector) " it disfigures the sky, the only place so far much noise. These machines were mostly of the Avro unsullied by hoardings." Had the war not intervened, 504N type, a Lynx- or Mongoose-engined development of prohibition might have followed. Another common form of aerial advertising before 1939 was sky-writing in smoke, and the famous 504K seen at the R.A.F. Display at Farn- it has been semi-seriously suggested that it might now be borough in July. These old biplanes certainly did make a economically revived by high-flying aircraft tracing letters racket, but the argument against the noise they caused in condensation-trails. could not justifiably be put forward today. A B.E.A. Presentation ot this article on its merits as a technical analysis Viking makes considerably more TOW, and there are far of an unusual aspect of flying activity must not be taken as more of them over London than ever there were Avros. an indication that " Flight " advocates the general re-adoption Today, joy-flying Rapides from London and Northolt Air- of aerial advertising. ports add to the sky sounds—when one can hear them above the sound of road traffic. Another argument put forward was that banner-towing^ From time to time there has been an outcry from the aircraft diverted the attention of motorists to the sky in- public against low-flying aircraft, whether carrying banners stead of the road—but it is significant that the A.A. or not. With some justification, many protests were also frequently made use of this form of announcement, exhort- made (to the Air Ministry, the Police and the papers) that ing road-users to "Give way and be safe." the Avros with their trailing banners flew far too low for In 1938 Mr. A. P. (now Sir Alan) Herbert, M.P., pro- safety. Indeed, they were reported by competent observers moted a Bill in Parliament '' to prohibit the exhibition of to have been seen at a height of 800 to r,oooft above Lon- advertisements by aircraft." In the following year the don, and in the event of an engine failure would certainly Committee on the Control of Flying recommended that .
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