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JetPilot
Joined: 10 Jan 2006
Posts: 1246
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 Posted: Sun Jan 20, 2008 8:59 pm Post subject: Here is what VG's did to my airspeed. |
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Ok, you all saw what VG's did to my runways  Now, on the serious side, here is a picture I took of my MK III Xtra panel with the VG's on the plane. I had two people, my wife and I, and this picture was taken at idle power, level flight just before the stall break, I dont remember if I had one notch of flaps in or clean on this one, it does not seem to make much difference in the stall speeds. You can see engine RPM of 2200, and a 100 FPM sink rate, and if you look outside, you can see the plane is still level, and under control. I did no pitch ups, or any wild things to make the airspeed go down suddenly, speed is also reading on the GPS which has a bit of a lag. This stall was from level flight, slow speed reduction, power off. The instrument readings speak for themselves.
I'm not trying to talk anyone that does not want VG's into getting them, but this is good information for people that may be considering them and are wondering what the effect on performance might be.
Mike
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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!
Kolb MK-III Xtra, 912-S |
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JetPilot
Joined: 10 Jan 2006
Posts: 1246
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| Posted: Sun Jan 20, 2008 9:04 pm Post subject: Re: Here is what VG's did to my airspeed. |
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One Correction, I was at 3500 RPM to maintain level flight just barely above the stall break with the 912-S ... I was at 2200 feet if you are familiar with the EIS readout.
Mike
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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!
Kolb MK-III Xtra, 912-S |
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MKIIIX040
Joined: 31 Mar 2006
Posts: 123
Location: Millinocket, Maine
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| Posted: Mon Jan 21, 2008 9:43 am Post subject: Here is what VG's did to my airspeed. |
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You seem to be mistaking your altitude with RPM which reads 3500.
Jp wrote
" You can see engine RPM of 2200, and a 100 FPM sink rate, and if you look outside, you can see the plane is still level, and under control. I did "
Vic
do not archive
[quote][b]
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MKIIIX040
912UL |
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JetPilot
Joined: 10 Jan 2006
Posts: 1246
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| Posted: Wed Jan 23, 2008 12:29 pm Post subject: Re: Here is what VG's did to my airspeed. |
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| MKIIIX040 wrote: | You seem to be mistaking your altitude with RPM which reads 3500.
Vic
do not archive
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That is correct,
I corrected those items in my second post. Engine Speed was 3500 RPM, and Altitude was 2200. I noticed that just after I hit the submit button on the first post, but it was to late...
Mike
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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!
Kolb MK-III Xtra, 912-S |
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John Williamson
Joined: 10 Jan 2006
Posts: 146
Location: Arlington, TX
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| Posted: Wed Jan 23, 2008 12:37 pm Post subject: Re: Here is what VG's did to my airspeed. |
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Hi All,
Did you know that when you make a mistake in a post, that you can edit that post to fix it instead of making another post.
do not archive
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John Williamson
Arlington, TX
Kolbra, 912ULS, 1640 hours
http://home.tx.rr.com/kolbrapilot |
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rlaird
Joined: 10 Jan 2006
Posts: 373
Location: Houston
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| Posted: Wed Jan 23, 2008 12:47 pm Post subject: Here is what VG's did to my airspeed. |
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Not if you're using email to make posts.
On 1/23/08, John Williamson <kolbrapilot1(at)tx.rr.com> wrote:
| Quote: |
Hi All,
Did you know that when you make a mistake in a post, that you can edit that post to fix it instead of making another post.
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do not archive
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_________________
~~~~~~~~~~~~~~~~~~~
Robert Laird
formerly: MkIIIc w/ 912ULS & Gyrobee
current: Autogyro Cavalon w/ 914ULS
Houston, TX area
http://www.Texas-Flyer.com |
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JetPilot
Joined: 10 Jan 2006
Posts: 1246
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| Posted: Wed Jan 23, 2008 2:54 pm Post subject: Re: Here is what VG's did to my airspeed. |
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Yep, on other boards I just edit my post if I make a mistake or miiistyyype something  But a lot of people here use the email, and once I hit the submit button, there is no taking it back 
Mike
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kolb-List |
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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!
Kolb MK-III Xtra, 912-S |
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