Originally Posted by
Jonty
Don’t kid yourself Mr Hacker, there won’t have been even one occasion where you will have hit 50ft over the numbers. But keep telling yourself otherwise if it makes you feel better.
On the type discussed
+ when pilot is over the numbers
+ the gear is crossing the threshold
= the RA which pilots reference is 31. Auto-call is
THIRTY.
Flying to PAPI commonly located at 400 or 450 mtrs past threshold will result in a higher profile that gives the pilot the wrongly desired
FIFTY auto-call over the numbers.
Assuming at his ILS home base he flies aligned with the instruments down to 100 feet, going for the big-airplane forward PAPIs will result in 2° profile. If that gets ingrained...
... it a sign of a healthy gut that being 20' (+66%) higher than required with a 2 deg profile feels wrong on a runway like the one discussed.
Some people would push halfway down (because there is actual room) and feel they turned the odds. Some people just arrive on the correct profile to begin with and the crossing height is the same.
These guys got it wrong. I suppose because of not having a clear and defined plan, rendering the PM pretty much powerless. Truth be told, there were still margins from something requiring an official investigation.