Should an additional 3kt of tailwind alone result in an overrun? Hopefully landing performance was calculated with the maximum tailwind of perhaps 10kts. If there was an additional 3kts during the landing, whilst this is outside of the a/c performance limitation, any excess energy would be contained by the performance safety factor wouldn't it?
Just to throw it on he table for a bar-room chat. Purely the over-run question.
A/C has -10kts AFM limit. Company has some airfields with -15kts approval. So a/c is capable of landing in -15kts; aerodynamically.
B737 landing F40 LDR < LDA by a good margin.
SE F15 landing. Vref15 = Vref40 +20.
TE flaps up landing. Vref = Vref40 + 40.
All flaps up landing Vref = Vref40+55.
The LDR is then factored = 1.3. The LDA is long enough for all these scenarios with good BA. Thus the runway is long enough to have a touchdown GS similar to a very strong tailwind.
Can you land F40 A/C in normal condition.
1. practically,
2. safely,
3. legally?
I'm only asking it against the idea that a 3-5 kts extra tailwind requires GA or even diversion. It is the written limitation that casts doubt and that addresses No. 3, but what about No. 1?
Limits can be very limiting. Just a light discussion.