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Aviation History
1929
1929 - 1225.PDF
FLIGHT. JUNE 13, 1929 THE CURTISS-HANDLEY PAGE SLOT INSTALLATION , A NEW method of installing the Handler Page slot on thewings of a machine has been devised by the engi-neering department of the Curtiss Aeroplane and >Iotor Co. It was developed in connection with the installa-tion, at the request of the U.S. Bureau of Aeronautics, of s[ot> on a Curtiss " Seahawk," a high-performance, single-seater shipboard fighter. Hitherto—as, no doubt, our readers are aware—thepractice in the installation of slots has been to attach the auxiliary foil to the leading edge of the wing by means oflinks pivoting on supports located underneath the wing in the air-stream. On the Curtiss " Seahawk," however, the slot mechanismi, housed entirely within the wing, the auxiliary foil being attached by means of four steel tubes, which slide in and outof the leading edge between rollers held in metal frames bolted to the forward wing spar. This is shown in thediagram in the accompanying illustration. A locking device is provided, by means of which the slots can, when desired,in- rendered inoperative to prevent interference with mauoeu vrability. Several advantages are claimed for the Curtiss system ofinstallation ; it is not only cleaner aerodynamically, the operating mechanism being entirely enclosed, but it is alsosaid to be more efficient, since—as was determined by- experiment with large-scale models in the Curtiss wind tunnel—it places the auxiliary foil in a better position with relation <s> <$> Echo of Whitsun Meeting THE Northamptonshire Aero Club ask us to make clear, in case any misapprehension exists, that the Westland " Widgeon," which crashed at their Whitsun meeting when flown by Mr. Byron, did not have Handley Page slots. The programme stated that the particular performance would be given on a slotted Widgeon, but it was found later that Mr. Byron's machine had no slots, and there was no time to alter the programme. It was thought at first that the difficulty could be overcome by borrowing Mr. Napier's slotted " Widgeon," but, unfortunately, he was unable to arrive, so Mr. Byron flew the " Widgeon " without Handley Page slots. R.A.F., Middle East THE Royal Air Force, Middle East, dinner was held at :ie Hotel Cecil on June 6, when Air Vice-Marshal Sir Geoffrey >almond presided. 'Bluebirds " at HestonIT is Auto Auctions, Ltd., who have taken the show room in which will be exhibited the Blackburn " Bluebirds " to the wing than does the link-method. In flight tests landingspeed was much reduced, positive lateral control provided at the stalling speed, and spinning effectively prevented. <•> <•> at Heston Aerodrome. They are the sole concessionnaires for the " Bluebirds." The American Cirrus CIRRUS AERO ENGINES, LTD., send us a copy of a telegramfrom Lady Heath which reports that she flew a Cirrus-Avian 6,000 miles on a sales tour from the Atlantic to the Pacific,demonstrating to 40 aircraft manufacturers and schools. The Cirrus gave no trouble whatever in spite of the extremetemperatures encountered. Records on Scintilla Magnetos SCINTILLA, LTD., inform us that the Ryan monoplaneFortmorth (Wright " Whirlwind "), which recently set up an endurance record (under refuelling conditions) of 7 days4 hrs. 40 mins. in America, had its engine equipped with Scintilla magnetos. Lieut. W. T. Tomlinson, of the UnitedStates Navy, also used Scintilla magnetos when he set up a speed record recently by covering a 100-mile course at anaverage speed of 175 m.p.h. in a seaplane. BRITISH ENGINES ABROAD : Three Heinkel seaplanes, fitted with Armstrong-Siddeley 460-500-h.p. geared " Jaguar " engines, belonging to the Danish Government, flying in formation 481 E 2
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