Today's Message Index:
----------------------
1. 04:03 AM - VGs (Mike Hoffman)
2. 07:05 AM - Re: VGs (ronlee)
3. 07:11 AM - Re: VGs (Ken Arnold)
4. 08:51 AM - Chat Reminder For "Digesters" (George Race)
5. 08:53 AM - Re: VGs (David L. Orr)
6. 12:13 PM - vg's (Mark Sherman)
7. 12:41 PM - Re: vg's (John Bolding)
8. 02:31 PM - Re: vg's (Tommy Walker)
9. 02:43 PM - Re: vg's (ronlee)
10. 07:11 PM - Re: Re: vg's (Mark Sherman)
11. 07:39 PM - Re: Re: VGs (JG)
Message 1
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Has anyone bought the new aluminum VGs that Zenith now has. What was the cost?
Would they be a better choice than the plastic ones being offered by other vender's
such as Stol Speed?
Mike Hoffman
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=253695#253695
Message 2
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I have had home made ones that I made that look just like the ones Zenith is selling.
I have these on the underside of the elevator on my 701 and they work fine.
I have the plastic vgs on my wings and they too work fine. I have broken
two of the plastic in two years so they certainly aren't as durable as aluminum.
I pressed my original aluminum vgs myself for a Ttitan I sold. I had enough
left to do the elevator on the 701, that is the reason I have them only on the
elevator. It was lots of work to make all those aluminum vgs, that is the reason
I now have a combination of each on my plane. Had the aluminum been available
when I bought the plastic I certainly would have done that instead of plastic
--------
Ron Lee
Tucson, Arizona
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=253709#253709
Message 3
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I did the plastic ones and am very happy with them.
Regards,
Ken
do not archive
----- Original Message -----
From: "Mike Hoffman" <mhoffman9@tampabay.rr.com>
Sent: Sunday, July 19, 2009 7:02 AM
Subject: Zenith701801-List: VGs
> <mhoffman9@tampabay.rr.com>
>
> Has anyone bought the new aluminum VGs that Zenith now has. What was the
> cost? Would they be a better choice than the plastic ones being offered by
> other vender's such as Stol Speed?
>
> Mike Hoffman
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=253695#253695
>
>
>
Message 4
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| Subject: | Chat Reminder For "Digesters" |
Live Chat Room every Monday evening around 8:00 EDT
www.mykitairplane.com <blocked::http://www.mykitairplane.com/>
Click on the Chat Room link on the page.
Need Help Building Your Panel ?
Check out my web page for ideas.
George
Do Not Archive
Message 5
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I beleive they were only 85.00$ the last time I looked on the Zentih page.
-----Original Message-----
>From: Mike Hoffman <mhoffman9@tampabay.rr.com>
>Sent: Jul 19, 2009 4:02 AM
>To: zenith701801-list@matronics.com
>Subject: Zenith701801-List: VGs
>
>
>Has anyone bought the new aluminum VGs that Zenith now has. What was the cost?
Would they be a better choice than the plastic ones being offered by other vender's
such as Stol Speed?
>
>Mike Hoffman
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=253695#253695
>
>
Message 6
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I'm flying the 701 with a Rotax 912ULS with strut fairings, this morning
it was at about 1000 lbs gross weight. Air was about 75 degrees at an
alt of 1000 ft that is a density alt of about 2260 ft. On the ground
density alt was 1100.
I have just installed the plastic vg's (yesterday) from StolSpeed and
spent some time this morning doing some testing. If I had not painted
my plane yet the aluminum ones would get some serious consideration.
The plastic ones take some time to put the adhesive on and then line
them up on the elevator, total install time was about four hours. They
don't conform to the radius of the elevator all that well, so we sill
see how long they stay on.
I tend to come in on short final with no power, flaps or no flaps. 15
degree flaps take a little more practice with no power. The vg's did
most certainly give me more elevator authority.
On a power off stall the vg's seem to make the approach to the non stall
much smoother. My CFI was amazed at the power off stall, no dropping of
the nose, full aft elevator with a slight buffeting. Just sinks at 900
fpm. Full power stall is about the same except a much higher AOA and
about 200 fpm sink rate. And a 5mph ground speed on the GPS.
Also did an engine off approach (prop stops on a Rotax 912) to a full
stop landing, wanted to see if the glide ratio was any different than
with the engine at idol and prop turning. I did not do a four direction
glide to compensate for any wind, this morning I could not detect any
wind. It sank at a higher rate than with the prop turning. This is
contrary to what I have been told. The only thing I can think is that
at idol the prop on a Rotax 912 is turning enough that it helps with the
glide. There was a considerably steeper nose down attitude with the
prop stopped than with it turning at the same air speed.
I also did my first off airport landing and take off this morning. Used
a local hay field, it looked smooth but sure felt rough when I landed.
I used 15 degree flaps on take off and that make things lighter on take
off and much smoother. I probably have to much air in the tires. How
much pressure are some of you using to smooth out the rough fields? I
have the tube type tires and don't want to spin the tires on the rim.
Eight more hours to fly off my 40.
Mark S.
Message 7
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Found the same thing to be true on an RV about 10 yrs ago, mine was NOT
a planned event however, sunk a LOT faster than with the engine at idle
LO&SLO John
----- Original Message -----
From: Mark Sherman
To: Zenith701801-list
Sent: Sunday, July 19, 2009 2:12 PM
Subject: Zenith701801-List: vg's
Also did an engine off approach (prop stops on a Rotax 912) to a full
stop landing, wanted to see if the glide ratio was any different than
with the engine at idol and prop turning. I did not do a four direction
glide to compensate for any wind, this morning I could not detect any
wind. It sank at a higher rate than with the prop turning. This is
contrary to what I have been told.
The only thing I can think is that at idol the prop on a Rotax 912 is
turning enough that it helps with the glide. There was a considerably
steeper nose down attitude with the prop stopped than with it turning at
the same air speed.
Mark S.
Message 8
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Hi,
Did you put the VG's on both the wings and elevator, or just the elevator?
Thanks for the report!
Tommy Walker in Alabama
Do Not Archive
--------
Tommy Walker
N8701 - Anniston, AL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=253774#253774
Message 9
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I keep just enough air in my 701 tires so they don't sag much. It is about 10 pounds
or less. I don't have tubes in mine though.
I have heard of people running short screws through the rim into the bead of the
tire to keep them from rotating on the rim. I think this is common practice
on ATV machines that run real low pressure. I have never done this as I don't
have that trouble. Now I must say they may have slipped without me knowing it
and didn't lose any air.
--------
Ron Lee
Tucson, Arizona
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=253776#253776
Message 10
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Tommy.
Just on the elevator, I still have the slats on.
Mark S.
----- Original Message -----
From: "Tommy Walker" <twalker@cableone.net>
Sent: Sunday, July 19, 2009 2:30 PM
Subject: Zenith701801-List: Re: vg's
> <twalker@cableone.net>
>
> Hi,
>
> Did you put the VG's on both the wings and elevator, or just the elevator?
>
> Thanks for the report!
>
> Tommy Walker in Alabama
> Do Not Archive
>
> --------
> Tommy Walker
> N8701 - Anniston, AL
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=253774#253774
>
>
>
Message 11
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Ron,
You got the earliest Stolspeed VGs. Since then they've been
considerably strengthened. I'll send you replacements, no charge. Anyone
else with the early Stolspeed VGs that have broken, let me know and I'll
replace them with the newer ones, no charge.
JG
On Mon, Jul 20, 2009 at 12:05 AM, ronlee <rlee468@comcast.net> wrote:
>
> I have had home made ones that I made that look just like the ones Zenith
> is selling. I have these on the underside of the elevator on my 701 and they
> work fine. I have the plastic vgs on my wings and they too work fine. I have
> broken two of the plastic in two years so they certainly aren't as durable
> as aluminum. I pressed my original aluminum vgs myself for a Ttitan I sold.
> I had enough left to do the elevator on the 701, that is the reason I have
> them only on the elevator. It was lots of work to make all those aluminum
> vgs, that is the reason I now have a combination of each on my plane. Had
> the aluminum been available when I bought the plastic I certainly would have
> done that instead of plastic
>
> --------
> Ron Lee
> Tucson, Arizona
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=253709#253709
>
>
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