In this particular case, with the crew being aware that they were at 360T, but the speeds being for a lesser weight, would a placard have helped?
Picture this;
Tower "Emirates 123 hold at holding position x for runway 34"
F/O " Holding short 34 Emirates 123"
F/O to Cpt " This is intersection x, the data was done for intersection x, gross weight 360T Vr checks"
Cpt to F/O " Well done son...before take-off checks please"
When the F/O confirms the intersection he looks at a $15 plaque attached to the a/c by his right knee.
Vr Table
Weight Flap 1 Flap2 Flap 3
360 161 153 148
350 159 150 144
340 157 148 142
330 etc etc etc
320 etc etc etc
etc
The figures would be for 15 degrees no slope but they would be a gross error check and thats all. It could be that as long as they made sense everyone is happy. ie if the Vr in the box is a couple knots faster the crew can put that down to the fact that it is 31 degrees outside.
I would be most receptive to posters telling me why this wouldn't work as I know there are people vastly more experienced than myself on these boards.
If this had been SOP in YMML would they have picked it up?
Regards, Framer
PS I have no idea of flap settings and speeds on this type of a/c so I made them up and just called them flap 1 2 and 3.