Hi Lord Spandex Masher,
Might as well bung a couple of 15m spaced lights at the far end of the runway then...after all they are in operation, no?
No - because all the
relevant sections of the runway have to have both the RVR & 15m CL Lighting, so that would include the touch down, mid point & stop end area, no?
172_driver quoted the regulations correctly - they don't specify the number of lights to be counted - only that "A 90 m visual segment is available from the cockpit at the start of the take-off run;"
If your OPS manual tells you to count N lights, then that's what you have to do. Better tell LGW Tower that you'll be taxing >300m forward, stop and count some lights before you start your take off roll though. Since LGW 08R lighting is approved for 125m TO, you'd think that your procedure would specified in the LVO notes, wouldn't you?