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Aviation History
1921
1921 - 0458.PDF
54r-0" LENGTH 42>O HEIGHT Il'-O BRISTOL TEH-SEATER. 45O H.P Napier "Lion"Engine. c VJ H . THE BRISTOL COMMERCIAL TEN-SEATER BIPLANE : General arrangement drawings. The main planes are of equal span and chord, and arewithout stagger or sweepback, but are set at a pronounced dihedral angle. The lower planes are attached direct tothe sides of the fuselage, and the top ones to small wing- roots in the roof of the cabin. There are two pairs of interplanestruts each side, and the landing and lift bracing is by streamline wire. Ailerons are fitted to all four wings.The chassis is of the four-wheeled Oleo-elastic type, with wheels in tandem, brakes being fitted to the rear wheels andoperated by a car type brake lever in the pilot's cockpit. A gate is provided for the brake lever so that the brakesmay be operated together or singly as required. Elastic rings are used for suspension and the elastic carriers havebeen designed for ready renewal of these rings. The Oleo plungers are fitted with a special type of tapered needlevalve to control the passage of the oil through the plunger to give constant oil pressure throughout the stroke of eightinches. The two main petrol tanks, of 50 galls, capacity each,are slung under the bottom planes at the inner interplane struts. Petrol is drawn from either of these tanks by twoVickers' centrifugal pumps coupled in series, and delivered through a Vickers' hand pump to the carburettors, anysurplus passing to a 10-gall. gravity tank and overflowing back to the particular main tank in use. Smiths' capacitygauges for both main tanks are fitted on the instrument board.The principal characteristics of this machine are as follows :— SpanLength, overall Height Dimensions 54 ft. 42 „ 11 .. Weights A s passenger machine—Machine empty with water Wireless installationFuel and oil for 400 miles (100 petrol, 6 galls, oil)Crew (two) Passengers (eight)Baggage (50 lbs. per passenger) .. galls. 3,900 lbs. 63 .. 798 „ 360 „1,280 „ 400 ,, As cargo machine— Machine empty, with waterWireless installation Fuel and oil as aboveCrew (two) Cargo 6,801 ,, 3,800 lbs 63 „798 ,. 360 ,, • • 2,079 ,, Loading As passenger machine—Weight/h.p. (Napier " Lion " at 450 h.p.) Weight/sq. ft .. As cargo machine—Weight/h.p. Weight/sq. ft 7,100 Speed at ground level ,, 5,000 feet ,, 10,000 ,,Time to climb to 5,000 ft. ,, 10,000 ,, Ceiling .. .. PerformancesFull load. 122 m.p.h. 118 „ 114 ..9 mins. 22 „ 13,500 ft. io-r 15-8io-6 Half load. 124 m.p.h. 120-5 ,, 117 717 - 15,500 ft. nuns. H.R.H. the Duke of York becomes Group-Captain WING-COMMANDER H.R.H. THE DUKE OF YORK, K.G.,G.C.V.O., has been promoted to the rank of Group Captain, Royal Air Force, with effect from June 30, 1921.Honouring the Guards' Colours from Above As in many other functions " R.33 " was in evidenceon Saturday last, when the King presented his Guards with new Colours. On her way to Hendon to watch over thecrowds attending the R.A.F. Pageant, " R.33 " in the haze hovered above Whitehall during the picturesque ceremonyof the presentation. In his R.A.F. Group Captain's uniform the Duke of York was a striking figure, both the Duke and his Equerry, Wing-Commander Greig, wearing the full-dresshead-dress of the R.A.F., composed of black fur slashed with blue and embellished with a gold chin-strap and blue plume." R.33 " remained until the last, passing over the Horse Guards Parade as the Chaplain-General concluded his sharein the ceremony by dedicating the Colours and setting them apart in the sight of God. .. . .. j:. .v ., Gnome Engine Works Destroyed FROM Paris it is announced that the Gnome engineworks at Argenteuil were destroyed by fire on Sunday night. 458
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