Flap 40
It's a bit like the many occasions I said to a crew, ' Are you ready immediate ?', ' Yes ' came the reply, with the next arrival plainly in view 4 miles away. Our heroes then take squatter's rights on the runway and the inbound has to go-around, - of course with the takeoff clearance cancelled for the 'helpful' crew.
Not a rant! Only saying!
Back to my bath chair!