Hi all. .. .My engine failed this morning after I landed on the sand at low tide. So was I unlucky that the engine failed or lucky that it happened when it did? (OK it was only a toy aeroplane before you go looking at CNN). .. .I’m having a funny day so please excuse this RANT. .. .Wings only stall because of excessive AOA which has nothing to do with speed. The factors that can affect stall speed are almost endless and all have to be in human pilots minds. I doubt 10 would scratch the surface given the humans I know.. .. .All autopilots avoid the stall by using AOA not speed . .. .Even stall warning systems do not use bl**dy speed to warn humans about the stall. . . . .And nor do stick pushers have any connection with speed.. .. .Is it not time we humans got with it?. .. .Sorry.