John, a further question if I may. US Marine Harriers [a different beast I know] use the flat decked ships, they 'appear' to go to full flaps as they go off the end. Is this an artefact of nozzle position or something else? Or are my eyes deceiving me? Timing looks like it's critical.
And, only semi-seriously, [thinking of energies, PE and KE] would the ramp on RN ships be equally effective if it was at the back of the ship to give a boost to the take-off roll?
Maybe one at each end?