Timeline for What is the difference between Assumed Temperature and Derate takeoff thrust?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Nov 25, 2023 at 16:00 | history | edited | cpast | CC BY-SA 4.0 |
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| Sep 1, 2017 at 7:43 | history | edited | user14897 | CC BY-SA 3.0 |
added the bit about MTOW from A330 FCTM
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| Sep 1, 2017 at 3:35 | comment | added | Terry | @RalphJ FWIW, in the 1980s and 1990s on the 727 and the 747 at the two carriers I flew for, we were not allowed to do reduced thrust takeoffs on contaminated runways. As I remember, when the contamination was just rain, it was the captain's call as to whether it constituted standing water. | |
| Feb 13, 2017 at 13:09 | vote | accept | kevin | ||
| Oct 11, 2016 at 20:56 | history | edited | kevin | CC BY-SA 3.0 |
added 569 characters in body
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| Oct 11, 2016 at 20:46 | comment | added | kevin | @RalphJ I believe the concern is the reduced friction on the runway, which lowers the tire's traction to counter an asymmetrical thrust condition until sufficient airspeed is achieved. | |
| Oct 11, 2016 at 20:43 | comment | added | Ralph J♦ | The statement that you can't do an assumed temperature takeoff with standing water, slush, snow, or ice MAY be specific to the 777 rather than universal. Clearly, with stuff on the runway, lots of power is a good thing, but I think there are some operations that can do assumed temperature with at least some of those, if all other parameters are met. | |
| Oct 11, 2016 at 20:41 | comment | added | kevin | I didn't mean to answer my own question. I was waiting for some airline pilots to shine some light on the information I have, but since (apparently) no one has... | |
| Oct 11, 2016 at 20:36 | history | answered | kevin | CC BY-SA 3.0 |