derated - engine's potential power deliberately limited, lengthening likely life.
DETRESFA - distress phase of search and rescue operation.
DERATED - An engine which is restricted to a cower output below its potential maximum.
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Although it is derated to the same output as the O-320, it gives the Beta II an increased power reserve and better hot-and-high performance.
The basic Continental TSIO-550 engine is rated for 350 hp, whereas the 550K version is derated to only 315 hp. This means that max cruise can be established at 85% without violating the traditional 75% rule.
By calculating this maximum and not exceeding it, the pilot derates the engine from the 160 horsepower which is actually available, to the derated maximum which is 124 horsepower continuous, or 131 horsepower for up to 5 minutes.
Of course, being the supportive and empathetic people we are we moderated these reactions, also wishing to avoid (what would be fairly reasonable) comments like "fuck you, if you're so great why didn't you pass the first time around?
He became an active a trade unionist and he later became Secretary of the Transvaal Federated Building Trades Council. In May 1899 he took part in the launch of the International Independent Labour Party.
 See also: Flight, Range, Aircraft, Power, Derate
  
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