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Aviation History
1947
1947 - 0795.PDF
MAY 22ND, X947 FLIGHT 465 Two points which I noticed in the air were the greatlyincreased effect of the fore-and-aft trimmer and'a slight vibra- tion of the tail felt through the stick and airframe, and visibleparticularly on the elevator horns when climbing at round about 75 k.p.h. I am told that this had been noted and isbeing corrected. The effect of the trimmer control has increased because itnow causes a change in tailplane incidence as well as moving a tab. This provides lor the relatively large changes in trimoccasioned by the carriage of either one or four people. Other recent improvements found on the Lark are a cleaned-up under-carriage and a steerable tail wheel coupled up with the rudder but also capable of castering. The brake operation is notquite all that could be desired, but the best positions for taxying would soon be learnt with experience. The fault, ifany, lies not with the brake units but with the differential link- up with the rudder pedals.. The centrifugally operated Acro-Jnatic v.p. airscrew improves performance. A plain instrument panel with good-sized cubby hok and aroomy four-seat layout are interior characteristics. Two fuel gauges are provided in the wing roots and the two tanksholding a total of 24 gallons are themselves in the wings. The dual throttle knobs protruding from the instruments panel at.a happy compromise between push-pull knob and lever. They move in and out but also describe a small arc, and a goodfriction adjuster is provided No adjustment is provided for the seats, but rudder pedal reach can be altered on the ground. On reflection, I felt that a paragraph from the makers'catalogue aptly and honestly sums up the KZ-VII. "It may not be the fanciest looking or the speediest plane of to-day,but it is a thoroughly sound job, easy to fly and cheap to operate." Those who have a soft spot for the old D.H. Hornet willfind some similarity between it and the Lark which is undoubtedly a good, safe club or private machine well suitedto instructional or cross-country work. M. A. S. ACTIVITIES AT WHITE WALTHAM (Above) After its firstflight in England the North AmericanNavion is looked over by the pilot andground engineers. Several Foreign Aircraft to be Seen : Two-control Flying Sampled by Some Experts The KZ-VII, alsoillustrated on the previous page, flewin during the after- noon and caused con-siderable interest as a potential econo-mical four-seater for British clubs or pri-vate owners. It has a 125 h.p. Continentalengine and Aero- matic centrifugal v.p.airscrew. Last-minute consultation before Colonel Ackerman, U.S. Army, flew the Navion. By comparison with the Auster (visiting from Redhill) in the background, it appears a large aircraft. THERE has been some unusual activity among light aircraft- at White Waltham airfield during the last week or t»o.The West London Club and its five affiliated clubs reckon_ to keep their respective Minors. Hornet, Magisters, Austex*etc.,in the air on all fine days, and a group of parked Brigands lends a business-like air to the place. *<****"£ <*g£fly in and out, and Fairchild Argus' and all types are seen in various stages of inspectionThe Women's Junior Air Corps took official delivery Faircrrild (photo page 471). P^ for b? *S ^ ™« Co!the recent special activities are illustrated on this page. Col (Lett and above) Two views oi the Ercoupewhich has been demonstrated in this country and on the Continent. The Gemini in thebackground of both pictures was recently acquired by the M. of S. The aircraft justvisible on the right is a Fairchild Argus. F D. Ackerman, of the U.S. Military Attache's drpartnit-nt, made a first test flight of his Navion which has recently been uncrated and assembled.As mentioned last week, Mr. J. L. Zenitz has been demon- strating the two-control Ercoupe at White Waltham and else-where, and in our photographs members of the Informal Light Aeroplane Committee who.flew it may be seen examining thisand other machines. The Danish KZ-VII four-seater and the low-wing Czech Fakon (Sokol), described in Flight of June 20,1946, were also present. Another visitor illustrated is a new M. of S, Gemini which is destined eventually for Washington.
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