Originally Posted by
Musician
Since there's a TDZ marker every 150m, that means each 25 ft more above the threshold means touching down one marker further along.
In what kind of situation would you decide that on the go?
I imagine that when you prepare the approach, comparing LDA to LDR, you'd think about what margin you have, as in "I have 300m I don't need, so it's still ok if I come in 50 ft high" or something like that?
or do your company SOP define margins for "hot and high" which mandate a go-around if you exceed them?
I already said it’s just a hint to help think about how much the landing distance increases when the aircraft is higher than the normal threshold crossing height.
For example, suppose before the approach you calculate a landing distance of 2000 m, while the runway length is 2250 m or 2300 m — if you come in on the normal path, that’s no problem.But say that day you cross the threshold at 100 ft (when you’re over the threshold and the RA shows or calls out “100”). Should you still land? And what if the runway were 4000 m instead — your decision might be different.
If it is OK ,land- If it’s not,GA. You can either decide in advance how much you can exceed during the briefing, or just think about it when you’re over the threshold—either way, it’s the same principle I mentioned.
Without that kind of hint, how would you know how much the landing distance would increase?It’s probably not related to company policy — it’s just a hint, not an SOP.
Note: The runway length we actually land on might not have the same margin as in the preflight planning.It’s not always plenty of length available — for example, you might have to divert to any airport, and factors such as aircraft condition, weather, runway surface, and other elements could increase the landing distance to the point where there’s almost no margin left.
Yes, speed is important, but the person who started the thread has already mentioned that.I’m just giving another hint. If you have other hints, you can share them with him.
I say again it's a hint not an SOP.