guys , not sure ye are getting the derated thing here
with the exception of the buzz 737s(which i know nought about )
all the 800's are 26 K rated engines ,we can select fixed derates on the FMC of 26K 24K or 22k or if we need it we can go to 27K "bump" thrust , all by pressing a button so no different engines are required ,
for performance , we can then reduce the thrust for take off further by using the assumed temperature method which i trust u are all familiar with .
there is no temperature reduction allowed with the 27K thrust setting .
as for the short runway , landing on a 6000 foot runway( with 189 pax on board can be sporty ,tank god for them fecking huge brakes
