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Aviation History
1950
1950 - 0440.PDF
1 FLIGHT. 2 March 1950 Even tbe bumble balloon which we pressurised in our youth bos become more complex and involved. So it is with tbe pressurisation of aircraft cabins. For many years Sir George Godfrey & Partners have been grooming tbe Marshall Roots type cabin supercharger. They have developed it. .. applied it . . . manufactured it so that today, Marshall cabin superchargers are coping mtb unthougbt of altitudes with tbe utmost efficiency and reliability. Pressure, either from a supercharger or tapped from tbe main engine is vital also for tbe operatum of our cabin cooling units. Briefly it is tbe expansion of this pressurised air through tbe turbine which brings about tbe desired drop in temperature. All this, of course, is expressed in tbe broadest terms—our sales engineers will be pleased to elaborate more technically on request. Sir George Godfrey A Partners Ltd. Hampton Road. Hamrorth, Middlesex. England. Tel.: FELtham 3291. Cables: Godfrepart. London. Marshall Type 30 Supercharger.
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