Stopways only apply to the accelerate - stop case. They are not included in the LDA.

Grass is OK for a stopway when the aircraft for which it is intended can use grass and it is maintained to the required standard.

i.e. in general a grass stopway would for example be OK for say a Kingair (certified to operate from grass) but not for a citation (prohibited from operating from grass).

I would caution against using the unfactored flight manual data for landing in anything other than a "Land Immediately" situation - eg uncontained fire, smoke in the cockpit or similar. In these situations the high probability of an over-run is easily balanced by the urgent requirement to get back on the ground.

Any other reason for return or diversion could not justify the high risk of an over-run and therefore appropriate factors including those applicable to overspeed at the threshold need to be applied.

Regards,

DFC

Really? I thought they were used for "aircraft on landing roll-out, taxi and departure" :confused:

Really? I thought they were used for "aircraft on landing roll-out, taxi and departure" http://images.ibsrv.net/ibsrv/res/sr...s/confused.gif

Probably you are confused with a Displaced threshold:ok:

Which can is "a sort of" stopway, right?

Thanks for the reply.