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mppalmer(at)aol.com
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 Posted: Mon Sep 23, 2013 7:29 am Post subject: VG's |
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I put VG's on the bottom of the horizontal stabilizer, about six inches (plus or minus) ahead of the hinge line to keep airflow attached while flaring and landing. You see same on Aero Commanders, IIRC. I wrote about it in one of the early newsletters.
BTW, I notice that I do not get any bugs on the horizontal stabilizer from a line tangent to the fuselage to the root of the stab. I gotta conclude the air is stagnant there. And that's quite a lot of air. (GII fuselage with a GI stabilizer.)
I keep thinking about putting HUGE VG's along with side of the fuselage, where it diverges at the flap, to keep the airflow attached, as they did on the Seawind.
But we're talking 3 inch VG's, which look dangerous for getting in and out of the plane.
Mike Palmer <><
[quote][b]
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cynamonb
Joined: 22 Sep 2013
Posts: 9
Location: Ft Lauderdale, Fl
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| Posted: Mon Sep 23, 2013 9:31 am Post subject: VG's |
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I used to have a Glasair 1 RG with VG's on the bottom of the horizontal stabilizer as well. I can't tell you if they made any difference as I never had the opportunity to fly the aircraft without them, I bought it that way. I can tell you that I remember thinking that I was able to keep the nose wheel off the runway until the airplane was barely moving.
In a message dated 9/23/2013 1:23:13 P.M. Eastern Daylight Time, mppalmer(at)aol.com writes:
| Quote: | I put VG's on the bottom of the horizontal stabilizer, about six inches (plus or minus) ahead of the hinge line to keep airflow attached while flaring and landing. You see same on Aero Commanders, IIRC. I wrote about it in one of the early newsletters.
BTW, I notice that I do not get any bugs on the horizontal stabilizer from a line tangent to the fuselage to the root of the stab. I gotta conclude the air is stagnant there. And that's quite a lot of air. (GII fuselage with a GI stabilizer.)
I keep thinking about putting HUGE VG's along with side of the fuselage, where it diverges at the flap, to keep the airflow attached, as they did on the Seawind.
But we're talking 3 inch VG's, which look dangerous for getting in and out of the plane.
Mike Palmer <><
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[quote][b]
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snaproll(at)whidbey.com
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| Posted: Mon Sep 23, 2013 3:07 pm Post subject: VG's |
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I have VGs on the vert and horiz stab as well. Small rudder still so I was looking for some more control. It did work. Building the larger rudder now but will leave the VGs there. Thanks for all of the comments. Any experience is appreciated!
Bob
From: owner-glasair-list-server(at)matronics.com [mailto:owner-glasair-list-server(at)matronics.com] On Behalf Of CYNAMONB(at)aol.com
Sent: Monday, September 23, 2013 10:32 AM
To: glasair-list(at)matronics.com
Subject: Re: Re: VG's
I used to have a Glasair 1 RG with VG's on the bottom of the horizontal stabilizer as well. I can't tell you if they made any difference as I never had the opportunity to fly the aircraft without them, I bought it that way. I can tell you that I remember thinking that I was able to keep the nose wheel off the runway until the airplane was barely moving.
In a message dated 9/23/2013 1:23:13 P.M. Eastern Daylight Time, mppalmer(at)aol.com (mppalmer(at)aol.com) writes:
| Quote: |
I put VG's on the bottom of the horizontal stabilizer, about six inches (plus or minus) ahead of the hinge line to keep airflow attached while flaring and landing. You see same on Aero Commanders, IIRC. I wrote about it in one of the early newsletters.
BTW, I notice that I do not get any bugs on the horizontal stabilizer from a line tangent to the fuselage to the root of the stab. I gotta conclude the air is stagnant there. And that's quite a lot of air. (GII fuselage with a GI stabilizer.)
I keep thinking about putting HUGE VG's along with side of the fuselage, where it diverges at the flap, to keep the airflow attached, as they did on the Seawind.
But we're talking 3 inch VG's, which look dangerous for getting in and out of the plane.
Mike Palmer <><
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01234567890123
[quote][b]
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bwbeaird(at)gmail.com
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| Posted: Mon Sep 23, 2013 4:18 pm Post subject: VG's |
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Mike,
My Glasair has GII fuselage and GI stab also. I'm happy with it's performance over all, but I'd always like to reduce stall speed further... Did you see real performance improvements after adding the VG's to your stab? I will look up your newsletter article.
Brian Beaird
RGII N240DB
On Mon, Sep 23, 2013 at 10:28 AM, <mppalmer(at)aol.com (mppalmer(at)aol.com)> wrote:
[quote]I put VG's on the bottom of the horizontal stabilizer, about six inches (plus or minus) ahead of the hinge line to keep airflow attached while flaring and landing. You see same on Aero Commanders, IIRC. I wrote about it in one of the early newsletters.
BTW, I notice that I do not get any bugs on the horizontal stabilizer from a line tangent to the fuselage to the root of the stab. I gotta conclude the air is stagnant there. And that's quite a lot of air. (GII fuselage with a GI stabilizer.)
I keep thinking about putting HUGE VG's along with side of the fuselage, where it diverges at the flap, to keep the airflow attached, as they did on the Seawind.
But we're talking 3 inch VG's, which look dangerous for getting in and out of the plane.
Mike Palmer <><
| Quote: |
target="_blank">http://www.matronics.com/Navigator?Glasair-List
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