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Old 10th April 2011 | 20:58
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From: Thionville
Vfto vx vy verc

Good day Budies,

Can someone help me to clarify some V speeds definitions ?
After reviewing ATPL knowledges while quicking around in FBOs especially speeds in performance chapter, i am a little bit confused about certain Vspeeds definitions.
Vx : best angle of climb
Vy : Best ROC

In the AFM, hawker 125 proline, i am trying to find those speeds. I guess VX and VY are closely linked to VFTO and VERC. I would need some clarifications about that... it s like i have a stone in my shoes !

Thanks budies
Freefly3333 is offline  
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Old 10th April 2011 | 21:16
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From: The No Transgression Zone
I covered that topic pretty thoroughly here---I don't want to re-explain all that stuff too much ---if you read my replies to this thread and still have questions I'll give it another try...I'm still undergoing therapy for this topic...

http://www.pprune.org/professional-p...rformance.html
Pugilistic Animus is offline  
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Old 10th April 2011 | 22:56
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From: fort sheridan, il
I think you might have a computer simulator or something.

many jets just don't use the Vx, Vy speeds for anything in routine operations.

now, instead of spending money on a computer, go down to a nice FBO that offers flying lessons, and take 3 or 4. Then when your money runs out, read a book called, :stick and rudder.
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Old 11th April 2011 | 06:50
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Joined: Mar 2002
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From: Seat 1A
On the 146, Vfto was "flaps to zero" speed ie min clean , 15° AOB, and Verc was "en route climb", being min manoeuvring speed ie > 15° AOB. I don't recall if the decode for the abbreviations were real or just made-up.

Vx and Vy have recently been discussed here:

http://www.pprune.org/tech-log/44555...mercial-c.html

Sevenstrokeroll, there's no such thing as a stupid question...
Capn Bloggs is offline  
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