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Jan 7, 2022 at 15:41 comment added HiddenWindshield @Vikki If the engine fails on the ground, that's not an emergency. Thus, the plane can taxi without having to do a runup first. But an engine failure in flight is an emergency, thus you want to test the engine (and related systems) with a runup sometime before you take off.
Mar 13, 2019 at 3:28 comment added Vikki If the engines aren't run up until the aircraft is about to take off, what does a piston aircraft taxi with?
Nov 30, 2018 at 1:41 comment added Michael Hall Good answer. Additionally, turbine powered commercial aircraft are generally larger than piston aircraft and can't just turn off into a run-up area to let the more prepared past. If you aren't ready to go by the time you get to the runway you will delay those behind you. Not a good way to make friends...
Oct 27, 2014 at 15:36 vote accept CGCampbell
S Oct 27, 2014 at 14:09 history edited Peter Kämpf CC BY-SA 3.0
added a number of other items checked in a runup, and reorganized the paragraphs
S Oct 27, 2014 at 14:09 history suggested rbp CC BY-SA 3.0
added a number of other items checked in a runup, and reorganized the paragraphs
Oct 27, 2014 at 14:05 review Suggested edits
S Oct 27, 2014 at 14:09
Oct 21, 2014 at 5:04 comment added Jan Hudec The important point you implied but didn't state explicitly is that turbine aircraft don't need those (nor any other) run-up checks.
Oct 20, 2014 at 23:19 history edited Steve V. CC BY-SA 3.0
Uncertain what this has to do with the question
Oct 17, 2014 at 23:18 history answered cberthold CC BY-SA 3.0