A High‐Output Reciprocating Engine Design: A Proposal for Large Internal Combustion Engines Using a Two‐Stroke Cycle with Crankcase Compression and Piston‐Head Valves

IN the development of the reciprocating aero‐engine it is not often possible to announce a marked step forward in the constant endeavour to improve the important factors of b.h.p./weight ratio and economy, but it is believed that the design of the Lindum 6,500–4,500 and 4,000 h.p. aero‐engine which is described here represents an advance of a nature which has not been achieved for many years.