Originally Posted by ReallyConfused
Is there some techncal restriction such as transmission capacity which would limit this.
Yes, the N3 has a max gearbox rating of 1,294 shp take-off, 1,138 shp max continuous and 815 shp OEI. As with all modern-day twins, the transmission is not intended to soak-up the theoretical max combined ISA/SL rating of the donks, but rather to ensure a suitably high OEI performance (see the
AW139 thread for more discussion on this).
Although the installed power of modern twins may seem unusable at ISA/SL, they do offer much improved hot/high performance, with the reduced output of powerplants at 4K/95 or 6K/95 filling the gearbox (or at least coming close to doing so).
I/C