centre main bearing
71Prince William, Duke of Gloucester — This article is about the son of Anne of Great Britain. For the son of Frederick, Prince of Wales, see Prince William Henry, Duke of Gloucester and Edinburgh. For his son, see Prince William Frederick, Duke of Gloucester and EdinburghInfobox… …
72Coffman engine starter — The Coffman engine starter (also known as a shotgun starter ) was a starting system used on many piston engines in aircraft and armored vehicles of the 1930s and 1940s. The Coffman system was one of the most common brands; another was the Breeze… …
73Mean effective pressure — The mean effective pressure is a quantity related to the operation of an reciprocating engine and is a valuable measure of an engine s capacity to do work that is independent of engine displacement[1]. When quoted as an indicated mean effective… …
74Henderson Motorcycle — Henderson produced 4 cylinder motorcycles from 1912 until 1931. They were the largest and fastest motorcycles of their time, and appealed to sport riders and police departments. Police favored them for traffic patrol because they were faster than …
75Obturator ring — For other uses see Obturator Obturator rings are a specific type of piston ring used in World War I aero engines to compensate for warping of the cylinders. Purpose The rotary aircraft engines of World War I (engines with the crankshaft fixed to… …
76Counter-rotating propellers — Not to be confused with Contra rotating propellers. Counter rotating propellers Opposite propeller blade section can be clearly seen on this Piper PA 44 Seminole Counter rotating propellers, found on twin and multi engine propeller driven… …
77Norton Commando — Manufacturer Norton Villiers Engine 828 cc (50.5 cu in) air cooled twin Power 51 bhp (38&# …
78Nußdorf weir and lock — The Nußdorf weir, administration building and the Schemerlbrücke …
79Possible war crimes in the 2006 Lebanon War — Main article: 2006 Lebanon War Various groups and individuals, including Amnesty International, Human Rights Watch, and United Nations officials, accused both Israel and Hezbollah of violating international humanitarian law during the 2006… …
80Operational history of the Luftwaffe (1939–1945) — Main article: History of the Luftwaffe (1933–1945) During the Second World War the German Luftwaffe was the main support weapon of the German Army (Heer). It fought and supported the Wehrmacht s war effort throughout the six years of conflict and …
