Even though I can recognize that some have seen my posts, evidenced by their response (including quotes) ... for example: peekay4's post of 22nd Nov 2014 07:01, referenced an earlier post of mine that had apparently gone missing somewhere in the "land of cyberspace" ... but, never let it be said that I'm not opinionated, so ... once again ...
Originally Posted by flyingchanges
Quote:
The factors that makes up an understanding of airplane landings includes both the airspeed (based on 1.3Vs increased by any wind/gust factor), where the 30% increase in this speed is gradually reduced to “zero” by reaching the threshold, while maintaining the other adjustments
What? Are you suggesting a 30 knot reduction from VAPP at the threshold.
Hello flyingchanges:
NO! NO! NO! NO! MY BAD! MY BAD! A THOUSAND apologies … to all here!!!!!!
When I read your post, I immediately went back to re-read what I thought I had posted … and almost fell out of the chair!!
As I sometimes find myself attempting to address several issues, from several widely different sources, and doing so all at once, cutting and pasting, rewriting some areas of some issues, etc. Generally I come close to keeping all the balls in the air … except for the rare bounce. This was different. I apparently did my cut’n’paste routine and then, like a blind idiot, selected the
remainder for posting on
PPRuNe which omitted all my cut’n’paste efforts! I went back through my notes, hoping to find what I had written, but I guess I dumped all of that as well. So – let me try again.
What I should have said is the following:
One of the significant factors that make up an understanding of airplane landings is the airspeed to be maintained on final approach … and is referred to as “Vapp.” This would be the airspeed to maintain on final, and is calculated from multiplying the stall speed (Vs) by a multiplier of 1.3 (commonly seen as 1.3Vs) and is then increased by the reported wind value
and any gust factor. Once determined, this airspeed is maintained until approaching the runway threshold … where a reduction of that airspeed should begin … so that the airspeed when arriving over the threshold should be 1.3Vs
plus the gusting wind value.
Wake up call acknowledged!