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Thanks - Appreciate differences in VG discussion now!

 
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jbhart(at)onlyinternet.ne
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PostPosted: Tue Jun 30, 2009 10:29 am    Post subject: Thanks - Appreciate differences in VG discussion now! Reply with quote

John,

Just returned from a mid-day flight in the FireFly. Had to land in a 18 mph
gusting cross wind. Didn't do too bad of a job of it.

One of the good things about VG's is that they do make your ailerons more
effective, and so it is easier to side slip into the wind and to stay on the
runway centerline. When you are at cruise altitude and flying through
turbulent air, the VG enhanced aileron effectiveness helps one cope with out
having to boot in rudder to keep picking up a wing.

If you are having trouble getting down in cross winds, then you need more
practice. Practicing with or without VG's will produce the same result, a
better pilot. But VG's will make your plane a little more roll and side slip
responsive.

As for lighter aircraft landing at lower speeds, it is not a problem if you
keep flying it until you get it down.

There are few days here without wind.

Jack B. Hart FF004
Winchester, IN


At 04:51 AM 6/30/09 -0700, you wrote:
Quote:


As much as I chance to add fuel to this fire....

The light finally came on for me regarding the countless threads and strong differences re VG's. I think I'm starting to grasp the different points of view on this subject and the reasons for them.

To me, VG's have a place and advantages in light to no wind flying with not a lot of crosswind component. I think it is accurate to say that most of the strongest VG proponents have stated they are light wind condition flyers, for the most part. In smooth conditions, real slow is good.

The other side, tends to fly long XC's in strong winds at times.

I used to be a light wind flyer and enjoyed it. The experiences of the MV-Oregon flight really challenged me. One of the problems I had was getting the plane to quite flying in gusting conditions while trying to land. The "four landings" at Vernon, TX got my attention. I got exactly sync'd with the gust and touchdown four times ie four bounces. The fellow in the FBO comment was, " I thought you were going to land in the next county!". I couldn't get the plane to quite flying. VG's probably would have made the problem worse in those conditions. In my plane and my with my experience, strong crosswinds challenge rudder authority first as I slow to land. VG's could slow you down even more and challenge that rudder authority even more.

So now I have a better understanding of the strong differences in opinions regarding VG's and there applications. I also have a new respect for the folks with strong opinions and their differences based on the type of flying they prefer.

For me, I'm an aspiring XC flyer. I enjoy the long flights and especially the company of fellow Kolb flyers. Seeing this great country from 1000 AGL and below is a goal that I have set for myself. You have to be ready for strong wind conditions to do that or you will be sitting at an FBO more than you are flying. Or worse, you could find the end of a long leg with higher than forecasted wind conditions. For that reason, VG's might not be the best option for me and the type of flying that I want to do.

So now I agree with both sides. It is just that we might be talking about two different approaches to flying conditions and the requirements that those conditions require. Maybe as I age and slow down, I might be satisfied laps around the patch or just local flights. Then I might decide to check the VG's out.



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Dana



Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

PostPosted: Wed Jul 01, 2009 8:20 am    Post subject: Thanks - Appreciate differences in VG discussion now! Reply with quote

At 10:42 AM 7/1/2009, robcannon wrote:

Quote:
It would be interesting to know what the difference in sink rate is (at
stall) with and without vg's.

I'd be even more interested in knowing what effect VG's have, if any, on
glide angle.

-Dana
--
Duelling is legal in Paraguay as long as both parties are registered
blood donors.


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by0ung(at)brigham.net
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PostPosted: Wed Jul 01, 2009 9:40 am    Post subject: Thanks - Appreciate differences in VG discussion now! Reply with quote

Quote:
It would be interesting to know what the difference in sink rate is (at
stall) with and without vg's.

Quote:
>>>>>>>>>>>>>>>>>>>

It just seems to me, when I was much younger, that I learned, or at least
was told that at the point of stall. The wing quits flying and starts
falling out of the sky. Now if we are talking sink rate after the wing has
stalled,,, or in other words, the sink rate during the falling out of the
sky portion of flight. Maybe at that point we are referring to the
parachute effect of the wing. Seems to me that it is safer to fly the
plane within an inch or two of the ground, instead of riding a falling leaf
out of the sky. Or better yet, fly to the ground and do a wheel landing.
That way putting the entire flight under my control instead of putting
gravity in the pilot seat... if we are always flying on the edge,,, sooner
or later gravity will win. If you enjoy riding the falling leaf,, best get
some spin training.

Boyd


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