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[Updated on 02 May 2023] Napier’s unusual H-shaped engines were originally designed in 1928 with 16 air cooled cylinders. Proposed in 1935, first run in 1937 and type tested in 1940, the Sabre was intended for high-altitude fighters. This liquid cooled H-shaped configuration was essentially comprised of four 6-cylinder engines, twin crankshafts, and combined gearing. Early problems with the engine's sleeve valves resulted in engine seizures, but these were resolved with improved metallurgy and manufacturing methods. Poor maintenance also caused early operational problems. During World War II, the Sabre IIA powered the Folland Fo.108 43/37, Hawker Tempest V, and Hawker Typhoon I and IB. Source: https://airandspace.si.edu/collection-objects/napier-sabre-iia-horizontally-opposed-24-engine/nasm_A19670111000
import "engine_sim.mr" import "themes/default.mr" import "engines/oror/napier_sabre.mr" use_default_theme() set_engine(eng()) set_vehicle(veh())