I'm bumping the F-18 on the deck of a Carrier at 700ft/min and they tell me that I can only do that because she has a strong undercarriage for that purpose. And you can really see that this undercarriage has a lot of work to do there.
If you say that those 700 are ok on the big planes, than I'm doing too soft landings there since ages. I'm aiming for anything well lower than 500ft/min so far and sometimes didn't succeed, leading to a big bump.
Since I'm a Sissy, this must be intended.
But you see me wondering now. Are my values for touching down (<500) wrong and where did I get them?
I'll browse some forums now, maybe some docs too.
Don't see that as questioning your knowledge and experience, Lou. My memory tells me that anything above 600ft/min causes
on fellow forum members faces when speaking about airliner landings.
We are talking about the moment just before touchdown, right? The moment where the wheels "kiss" the ground then.
As you saw, I've agreed with Jürgen that the current Autoland of the 757/767 doesn't flare (enough) to avoid a really firm landing.
I think that we're discussing a misunderstanding here, that's why I'm asking so "safely".
Remember, I'm not a real Pilot and a Sim "Sissy" too
, but I think that 1000ft/min at touchdown will very much lead to such things.
http://www.youtube.com/watch?v=8Pk1N6GzeOoHere's the crash report regarding this video (
http://www.airdisaster.com/reports/ntsb/AAR82-02.pdf).
Reading the descend rates there
at touchdown, we're near 1000ft/min and you may want to look at that video again.
Seems like the FAA says that the aircraft must
be able to take a 600ft/min landing, just in case. So even 700ft/min would be well above this limit and I think that they've grounded the always "hard landing" Concorde (so to say that she has a capable undercarriage, eating up most of the bump) after a 800+ft/min one for inspections to be made.