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Show 'SWIFT AIRCRAFT OF THEJERMANS Several New Types Attain Great Speed and Ability for Climbing. BRITISH AIR SERVICE Strenuous Exertions Made to Keep Ahead of Rival Many Skilful Pilots. LONDON, April 6. (Correspondence of the Associated Press ) The superiority superi-ority of the English and French aircraft, air-craft, which was frenuentlj asserted In official statements from the entente last year, is less pronounced this year, according to the British correspondents correspond-ents at the front. This is due to the appearanco of several new types of German machines, chiefly modeled, it is said, on French and British designs, and known as the Albatros, Halber-stadt, Halber-stadt, Ago, Roland and the Fokker. The majority of them have fixed cylinder cyl-inder engines, giving 160 to 200 horsepower. horse-power. A few retain the rotary engines en-gines with which the Germans achieve gmes. with which the Germans' achieved some success in the Fokker I two years ago, but these rotary engines are seldom of more than 130 horsepower. horse-power. The now German machines havp a speed of about 120 miles an hour, but their chief feature is their ability for) climbing. Ordinarily they frequent the ' 14,000-foot levels, and thoy have been I observed on picket duty as high as 20.-000 20.-000 feet. Tne latest German order for' airplane engines is said to have specifications speci-fications designed to give their machines ma-chines a radius of action up to at least 30,000 feet. British Air Service. Meanwhile the British air service is putting forth strenuous exertions to , keep ahead of its rival: Only in parti Is this a question of planes and en- Sines. It also involves the problems . of more skilful pilots, and in this direction di-rection of training the British service has expanded extraprdinarily. After a class of military aviators have passed through their course of training on the slower types of school machines those who show special aptitude ap-titude are passed on to the "scout schools," where they are given a special spe-cial course in what is commonly called "aerobativs," which involves the use of the highest speed machines and handling them acrobatically in ihe air, as is necessary in air fighting. The instructors carry on sham fights in the air with their pupils, armed with cameras cam-eras instead of guns. Aerial Gunnery Schools. Then there are the post graduate aerial gunnery schools. The most expert ex-pert pilot in the world Is useless as a fighting man If he does not thoroughly understand, hfs machine gun, for a perfect per-fect flyer with a Jammed gun is of little lit-tle use against a merely moderate "pilot "pi-lot who is a crack shot and a real gun master. A combination of the two Is the desideratum, as, for example, in the case of a young pilot recently mentioned men-tioned in dispatches, whose engine stopped dead at a height of 15,000 feet when he was being attacked by two German aeroplanes. Despite this loss of motive power, forcing him to descend de-scend constantly, he shot down one enemy machine, drove tho other away and glided into his own lines undamaged. undam-aged. The work of the aviator has become highly specialized in the course of the last twelve months. At the British aviation camps along the front in V France, there are separate squadrons H of machines for reconnaissance, infan- HE try contact, photography, artillery jQ spotting and bomb dropping, and, in al- H most every instance, squads of these H machines may only accomplish their M duties successfully when they are pro- H tected from enemy attack by machines H of a type comparable to the torpedo H boat destroyers of a naval fleet. H For these "destroyer machines" high H speed, high climbing ability and high M fighting and maneuvering power are tM essential. Some of the newer British H machines of this type are said to show H a speed of over 150 miles an hour. H |