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Old Jan 17, 2023 | 2:49 pm
  #19  
Waterhorse
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Join Date: Aug 2008
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Originally Posted by CKBA
Assumes you have more than 1 engine . Also depends upon the aircraft - and in particularly jet vs propeller - noting that the take off angle is essentially limited (unless in a performance aircraft).
(One time, in a little Cessna 172, we approached BWI at commuter time, so had to wait for a landing slot - eventually we got the go ahead to land (15L) and the instructor (thankfully) took control, put on full flaps, and what seemed to be a nose dive towards the runway, pulled up at the last moment and came to a stop about 25m along the runway).
So I was referring to Performance Category A aircraft, or Perf A, essentially most passenger aircraft, note I say most, some are Perf C and some perf X, perf B and D also exist. I did say it was a 2 week course and that I had simplified it to a very great extent. However, if it is a passenger aircraft in Perf A then the type of propulsion is irrelevant and it has to have at least 2 engines, fewer would put it in a different Perf group. Prop vs Jet is irrelevant, the Perf requirements are identical.

The approach slope is normally 3 degrees, but can vary a little dependent on terrain, and siting etc etc etc. The more recent GPS dependent approaches (they have many names and are generally starting to be called RNP or RNP AR approaches) can have different slopes as they are mathematical rather than based on a radio beam. This is useful as it allows steeper approaches which can keep the noise footprint to a smaller area.
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