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Twins - Vyse during landing (Read 795 times)
Oct 23rd, 2012 at 10:02am

Gregorio   Offline
Colonel
Sao Paulo, Brazil

Gender: male
Posts: 40
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Hi All.

Hope someone can shed some light onto this. While training my twin flight techniques (I generally use the Carenado King Air) and on final approach, I keep airspeed above Vyse (the blue line) until I cross the runway threshold, but my touch down ends up happening a bit farther then I'd like because of the additional speed I have to bleed off until it does not want to float above the runway. It seems that I should start decelarating to below Vyse (but still above Vmca) before reaching the thresold and when I am assured of reaching the runway.

Question is, what is the best procedure in this case? Should I keep Vyse until I am above the runway or so or should I decelerate once I am positive I can make the distance to the runway? I tried to find some text specific to this aspect of flyng but to be sincere they did not convince me entirely. And this is one important part.

Thanks in advance!
 
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Reply #1 - Oct 23rd, 2012 at 6:10pm

DaveSims   Offline
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Clear Lake, Iowa

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I'm not a real twin pilot, but I've always heard from those who are maintain blue line until the runway is assured.
 
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Reply #2 - Oct 23rd, 2012 at 7:50pm

-Crossfire-   Offline
Colonel
Northern Canada

Gender: male
Posts: 954
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I maintain blue line or above until the runway is assured.  But you have to decarease your speed so you're at your ref speed over the threshold.  Otherwise, you'll float much further than you want to.  Going into short strips, I'll ref at 90 knots (Piper Navajo), while blue line is 107.  So for about the last 500 feet or so until landing, I'll be below blue line.

Cheers  Cool
 

...
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Reply #3 - Oct 24th, 2012 at 6:24am

Gregorio   Offline
Colonel
Sao Paulo, Brazil

Gender: male
Posts: 40
*****
 
Awesome! Thanks! That does answer my question! I'll start by aiming to decelerate to Vref in those final 500 feet to the runway and work from there.

Thanks again!!!  Smiley
 
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