Am Mittwoch, 16. August 2017 13:32:32 UTC+2 schrieb David Billington:

I don't think the guy I know that used to work for David Brown would
agree. While he is no longer full time he does get call upon to work on
North Sea oil rig gearboxes from time to time and has worked on large
ship gearbox installations in the past from what he has said.

It might just be that big gearboxes cost dramatically more than smaller ones, and so other solutions become economic. Could be that simple. I'm just interested to know if there are technical reasons about gearbox scaling which affect the choice as well.

Chris