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Aviation History
1923
1923 - 0778.PDF
DECEMBER 27, 1923 THE LAIRD LIMOUSINE : Three-quarter rear view of the complete machine. It has a totally enclosed cabin ••• - - seating five passengers, and is fitted with a 300 h.p. 12-cylinder Packard engine. • . . / byjthe £-in. elastic absorber cord wrapped on the spools, anda safety cable is also fitted. The wheels are streamlined with aluminium covers. The tail skid is mounted on a swivelpost and secured with f-in. elastic absorber cord. This skid is of hickory and is provided with a spring steel shoe. The engine fitted in the Lincoln-Standard L.S.5 is thefamous eight-cylinder Hispano-Suiza, developing 180 h.p. at 1,750 i.p.m. The cooling system consists of two side radiators.with an expansion tank mounted between the cylinder blocks. The oil tank is located at the back of the enginu. All thewater, petrol, and oil lines are fitted with flexible couplings, The exhaust is carried down at the nose of the fuselage,thereby keeping the exhaust fumes clear of the cockpit and lessening the noise of the exhaust. A booster magneto isprovided for starting the engine. The principal characteristics of this machine are asfollows :—• Span, topSpan, bottom Chord . .(Jap Dihedral angle Sweepback Stagger Overall heightWing section Area of top plane (incl. ailerons) Area of bottom planeTotal wing area Area of ailerons (two) Area of stabiliser . . ...Area of elevators Area of rudderArea of fin Weight, empty Weight, fully laden Pay loadLoading per h.p. Loading per sq. ft.Speed range Climb in 10 minutes . •:. . . 44 ft. 7 uis.. . 30 ft. 0 ins. 6 ft. 0 ins.6 ft. 0 ins. .. r.. . 5°. 5£ ins. . . 10 ft. 7 ins.. . R.A.F.3 . . 267 sq. ft. . . 180 sq. ft.. . 447 sq. ft. 42 sq. ft. 23-7 sq. ft.. 22-8 sq. ft 12 sq. ft.4-6 sq. ft . . 1,735 lbs. . . 2,922 lbs. 720 lbs.16-2 lbs. 6-5 lbs.. . 34-93 m.p.h .. 5,200 ft." A German Air Combine FOLLOWING on the Trans-Europe Union combine, formeda little while back by the Junkers Company, with head- quarters at Zurich, comes the report of another big combineof air companies organised by Junkers. This is to be known as the North-East Europe Union, and will comprise thefollowing companies : Junkers (German and Russian branches), Esthonian Air Transport Company (" Aeronaut "),Finnish Air Transport Company (" Aero "), Lettish Air Transport Company, and a Swedish company, name at presentunknown. A Norwegian Air Mail Service - ' PLANS are being made, t>y two Norwegian pilots, for adaily air mail service between Christiania and Copenhagen, Ceiling Fuel capacity : petrolFuel capacity : oil . . Radius of action 18,000 ft.42 gals. 5 gals.310 miles. In the second machine under review, built by the E. M.Laird Company, of Wichita, Kansas, is a handsome limousine, or enclosed cabin type tractor biplane, also designed forcommercial purposes. The cabin is luxuriously upholstered in grey plush and seats five passengers comfortably, two in thefore part of the cabin and three at the rear. All the seats fact- forward : the two front ones are separate, there beingsufficient space between each seat to allow easy access to them. Opposite each seat is a window giving good, all-roundvision. Aft of the cabin is a compartment of sufficient size to carry30 lbs. of luggage for each passenger. Access to the cabin is by a door on the port side, and the step of the door is lowenough to enable the passengers to get in or out without the aid of a platform. The pilot's cockpit is located im-mediately in front of the cabin, and communication between pilot and passengers maj' be carried on through a doorprovided for this purpose. The pilot's cockpit is large enough to seat two people side by side, and dual Dep. controlis fitted. The wings are of conventional design, the spars being builtup of laminated spruce, box type, and the ribs of reinforced plywood, truss type. They are of the two-bay type, with asingle pair of interplane struts each side. Ailerons are fitted to both upper and lower planes. The tail surfaces are ofample proportions. Thp fuselage is of the usual rectangular section girderconstruction, the cabin portion being covered with three-ply veneer. A 300 h.p. Packard 12-cylinder engine is fitted, beingmounted in a specially designed steel tube mounting. Both the mounting and the engine may be removed from the fuselagein one unit by unscrewing four bolts—or the engine may be removed from the mounting in the usual way. The overall span of the Laird limousine is 38 ft., the length28 ft. 6 ins., and the height 10 ft. It carries a useful load of 1,800 lbs., and has a speed range of 45-95 m.p.h. Thecruising radius is 300 miles. m m starting next spring. Arrangements have been made withthe Junkers Company for the supply of three Junkers sea- planes (185 h.p.), which will be " loaned " on the under-standing that the Junkers Company are to have a voice in the technical management of the concern. The pilots will beNorwegian, and will be trained at the Junkers works. The route will be via Gothenburg, where a 15-minute stop will bemade, and the municipal authorities have promised a minimum guarantee of 10,000 kroner on condition that accommodationis reserved for one passenger each way between Christiania and Gothenburg. The Norwegian postal authorities arefavourably disposed towards the scheme, and an application has been made to the Norwegian Government for a subsidy of75,000 kroner. 778
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