April 28, 2014
Question: In an aircraft with a reciprocating engine, the engine will be lubricated by either a dry- or wet-sump oil system. What is the difference?
Answer: The basic difference is in where the oil is stored. In a wet-sump oil system, all of the oil is contained in the sump, which is an integral part of the engine. In a dry-sump system, oil is stored in a separate tank and pumps are used to circulate it through the engine. (Source: Pilot's Handbook of Aeronautical Knowledge, page 6-15)
Aircraft Power and Fuel
Prolific helicopter manufacturer Robinson saw lower sales in 2014 on weak global demand, but a new engine deal and some aircraft options indicate a strong future.
Crews prepared Solar Impulse 2, the gossamer aircraft powered by the sun and designed to inspire, for a hoped-for March 7 departure from Abu Dhabi.
Continental Motors announced FAA certification of its IO-360-AF six-cylinder engine that can be operated with 100LL avgas or unleaded 91UL fuel.
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