With all that extra thrust, we routinely set reduced power for takeoff.
We had a chart in the performance section of the flight manual for just
a thing. It considered runway length, density altitude, gross weight,
winds, etc. Should an engine fail, the remaining engine(s) would be
advanced to max power.

On 6/14/2015 10:59 AM, Bruce Hoult wrote:
On Sunday, June 14, 2015 at 6:27:10 PM UTC+3, PBA wrote:
LOL @ DAn.
Awesome! Goes to show without all the ballast (human bodies) these planes have plenty of extra power.
There's also the regulation that large twins have to be able to continue a takeoff from V1 [1] on a single engine at max all-up weight and the given runway length, wind, temp etc.

If you actually have twice that trust, as you usually do, it's jam.

I note that the A380 has an *extremely* leisurely climb out compared to the modern twins. It only has to have 33% more than the bare minimum power, compared to 100% more for twins.

[1] if an engine fails below V1 then you stop. If above V1 then you continue, but you must accelerate to at least V2 before actually lifting off.

--
Dan Marotta