BA EGLL Nois abatement

[Spooky 2]

Can any BA 777 folks tell what proceure they are using for RWY 27R at EGLL. I assume it's some version of the NADP 1 but I was wondering if the power reduction is being done at 1000' or 800'? Building a sim lesson for the 777 simulator.

Thanks

[Shaka Zulu]

Thrust reduction is at 1000'AGL out of LHR

[Amadis of Gaul]

Does it really matter in a sim?

[SR-22]

I dont know about BA but the only rules there are that aircrafts have to be at 1000ft AAL within 6.5 km from start of takeoff run, minimum 4% climb gradient to 4000ft, less than 94 dBA at the noise monitors and to follow the noise preferential routes. (UK AIP EGLL AD 2.21)

To be honest I find it peculiar that such an airport simply doesn't simply have a bit clearer rules such as NADP 1/2 or some versions thereof