Vref+15+ additional 5 knots for tail clearence during flare on the 400?
Searched the FCTM but unable to find reference to extra speed for tail clearance? Someone's personal opinion, maybe? What is a grey area is the Boeing policy of further adding the HW component and gust factors or minimum of five knots on top of Vref. Is that applicable to engine failure on final approach where you select Flap 15 and continue at Vref30/50 plus 15 knots min.