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link for "new " trim tab drawing

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taffy0687(at)yahoo.com
Guest

Posted: Fri May 12, 2006 3:50 pm Post subject: link for "new " trim tab drawing

http://www.zenithair.com/zodiac/xl/data/6-t-6.pdf

  List-- above is the link for drawing for the new (larger) trim tab.

  Fritz



		

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clojan(at)sbcglobal.net
Guest

Posted: Mon May 15, 2006 2:04 pm Post subject: link for "new " trim tab drawing

Interesting the Zac has come up with the longer trim tab but does anyone think there would be a problem with just riveting an extension plate to the bottom of the exsisting trim tab? Jack



Big Gee <taffy0687(at)yahoo.com> wrote:  



http://www.zenithair.com/zodiac/xl/data/6-t-6.pdf

List-- above is the link for drawing for the new (larger) trim tab.

Fritz

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gfmjr_20(at)hotmail.com
Guest

Posted: Mon May 15, 2006 2:55 pm Post subject: link for "new " trim tab drawing

Not as elegant, but it should work.  I had mine completed with the small tab 

but decided to change to the larger one.  It is not that difficult to modify 

the elevator to the larger tab if you are thinking about it.



George May

601xl 912s-----at the hanger for assembly

 	  Quote: 	
		  From: Jack Russell <clojan(at)sbcglobal.net>

Reply-To: zenith-list(at)matronics.com

To: zenith-list(at)matronics.com

Subject: Re: link for "new " trim tab drawing

Date: Mon, 15 May 2006 14:58:36 -0700 (PDT)






Interesting the Zac has come up with the longer trim tab but does anyone 

think there would be a problem with just riveting an extension plate to the 

bottom of the exsisting trim tab? Jack



Big Gee <taffy0687(at)yahoo.com> wrote:  

Big Gee



http://www.zenithair.com/zodiac/xl/data/6-t-6.pdf

List-- above is the link for drawing for the new (larger) trim tab.

Fritz

---------------------------------

How low will we go? Check out Yahoo! Messengers low PC-to-Phone call rates.



	


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p.mulwitz(at)worldnet.att
Guest

Posted: Mon May 15, 2006 3:41 pm Post subject: link for "new " trim tab drawing

I think it would be ugly by comparison.   I doubt there would be any 

significant difference in forces needed or applied to the main 

control surface if the surface area is the same.



Paul

XL wings

do not archive



At 02:58 PM 5/15/2006, you wrote:

 	  Quote: 	
		  Interesting the Zac has come up with the longer trim tab but does 

anyone think there would be a problem with just riveting an 

extension plate to the bottom of the exsisting trim tab? Jack

pmaxpmax(at)hotmail.com
Guest

Posted: Wed May 17, 2006 2:53 am Post subject: link for "new " trim tab drawing

This was my solution for the shorter trim tab, but it is still not effective 

enough to fully counteract the pitch of the plane when flaps are deployed.  

This is not a problem in flight, so I don't plan to fix it.  It's not ugly, 

or even noticable.  When my plane was parked at the Zenith booth at 

Sun-n-Fun, none of the 100s of visitors seemed to notice it, or if they did, 

they didn't mention it. Including the Heinz boys who went over it in detail.



Phil Maxson

N601MX

Corvair/XL

Northwest New Jersey



 	  Quote: 	
		   >Interesting the Zac has come up with the longer trim tab but does

 >anyone think there would be a problem with just riveting an

 >extension plate to the bottom of the exsisting trim tab? Jack

clojan(at)sbcglobal.net
Guest

Posted: Wed May 17, 2006 7:04 am Post subject: link for "new " trim tab drawing

Thanks phil: I added about a inch to the tab with a slight down bend. Did a short flight today and it made all the difference. I can fly with the indicator in the netural position now. I still need a lot of up with the flaps. I think I can live with that also. I think once it is painted you won't even notice the tab. jack in los osos ca

Phil Maxson <pmaxpmax(at)hotmail.com> wrote:  

This was my solution for the shorter trim tab, but it is still not effective 

enough to fully counteract the pitch of the plane when flaps are deployed. 

This is not a problem in flight, so I don't plan to fix it. It's not ugly, 

or even noticable. When my plane was parked at the Zenith booth at 

Sun-n-Fun, none of the 100s of visitors seemed to notice it, or if they did, 

they didn't mention it. Including the Heinz boys who went over it in detail.

Phil Maxson

N601MX

Corvair/XL

Northwest New Jersey

 	  Quote: 	
		   >Interesting the Zac has come up with the longer trim tab but does

 >anyone think there would be a problem with just riveting an

 >extension plate to the bottom of the exsisting trim tab? Jack

JAPhillipsGA(at)aol.com
Guest

Posted: Wed May 17, 2006 8:36 am Post subject: link for "new " trim tab drawing

Jack & Phil, I have not experienced this void in pitch control with flaps 

down you mentioned. When flying straight and level do you use any trim. Up or 

down ? Do you neutral the tail trim when setting up to land ? When you say you 

lose pitch control does that mean you can't pitch the plane enough to land rear 

wheels first with the flaps down ? Is this with a center yoke or duel sticks ? 

Power on - power off ? I just have not seen anything like a lack or loss of 

pitch all the way to stalling with and without flaps. Maybe it is not the trim 

tab, but the yoke may somehow be restrictived?  I am puzzled. Maybe the 

incident on your stabilizers are wrong. Best regards, 

Bill of Georgia 

N505WP 601XL-3300 w/dc 63 hours

do not archive

601zv(at)ritternet.com
Guest

Posted: Wed May 17, 2006 9:08 am Post subject: link for "new " trim tab drawing

Weren't they talking about a lack of pitch trim control only, and not lack 

of pitch control, or did I miss something?



---

clojan(at)sbcglobal.net
Guest

Posted: Wed May 17, 2006 9:38 am Post subject: link for "new " trim tab drawing

Bill:  When I had only 10 deg of flaps in I had to have full up trim and I still had to hold quite a bit of back pressure on the yoke.  I thought about changing the angle of the horz stabilizer but I did install it according to plan. The brackets rest on the longeron. I thought about rasing the back backet a bit but the extra trim tab seems to work. It might be creating a bit more drag so I still might change the tail.  Things are still working out on each test flight. Jack



JAPhillipsGA(at)aol.com wrote:  



Jack & Phil, I have not experienced this void in pitch control with flaps 

down you mentioned. When flying straight and level do you use any trim. Up or 

down ? Do you neutral the tail trim when setting up to land ? When you say you 

lose pitch control does that mean you can't pitch the plane enough to land rear 

wheels first with the flaps down ? Is this with a center yoke or duel sticks ? 

Power on - power off ? I just have not seen anything like a lack or loss of 

pitch all the way to stalling with and without flaps. Maybe it is not the trim 

tab, but the yoke may somehow be restrictived? I am puzzled. Maybe the 

incident on your stabilizers are wrong. Best regards, 

Bill of Georgia 

N505WP 601XL-3300 w/dc 63 hours

do not archive

pmaxpmax(at)hotmail.com
Guest

Posted: Wed May 17, 2006 5:38 pm Post subject: link for "new " trim tab drawing

I wasn't describing a loss of pitch control with the flaps deployed, I was 

saying that the old style rudder (not full span of the elevator) doesn't 

have enough authority to fly hands off with full trim.  This has been the 

experience of several builders with early plans/kits.  The plane handles 

beautifully, it just requires more nose up pressure than the smaller trim 

tab can supply.  This is not a problem at all, it's just something to get 

used to.  I have plenty of elevator left to flare and land it on the tail if 

I wish.



While flying straight and level the trim tab is neutral, and I reset it to 

neutral before each take-off.  My plane has the standard center stick.



Phil Maxson

601XL/Corvair

Northwest New Jersey

 	  Quote: 	
		  From: JAPhillipsGA(at)aol.com

Subject: Re: link for "new " trim tab drawing

Date: Wed, 17 May 2006 12:30:27 EDT






Jack & Phil, I have not experienced this void in pitch control with flaps

down you mentioned. When flying straight and level do you use any trim. Up 

or

down ? Do you neutral the tail trim when setting up to land ? When you say 

you

lose pitch control does that mean you can't pitch the plane enough to land 

rear

wheels first with the flaps down ? Is this with a center yoke or duel 

sticks ?

Power on - power off ? I just have not seen anything like a lack or loss of

pitch all the way to stalling with and without flaps. Maybe it is not the 

trim

tab, but the yoke may somehow be restrictived?  I am puzzled. Maybe the

incident on your stabilizers are wrong. Best regards,

Bill of Georgia

N505WP 601XL-3300 w/dc 63 hours

JAPhillipsGA(at)aol.com
Guest

Posted: Wed May 17, 2006 7:37 pm Post subject: link for "new " trim tab drawing

Jack, my knowledge of what makes "it" go up and down is very limited, 

especially when "it" doesn't seem to be doing what "it" should. Have you called Nick 

and Roger at ZAC with this ?  When flying I have a touch of down trim when 

near max load and even less when flying alone. I neutral both aileron and 

elevator trims just prior to base and land without or with full flaps and pitch 

control all the way to stall on it's tail. I think I even scraped the rear tie down 

loop last summer and recovered to set it on the mains with gentle pitch 

control. I wish I had an answer, maybe calling the "brain trust" at ZAC can offer a 

solution. Best regards, Bill of Georgia

clojan(at)sbcglobal.net
Guest

Posted: Thu May 18, 2006 9:36 am Post subject: link for "new " trim tab drawing

Thanks Bill: After flying this morning I think the Extra 1" I added to the trim is working fine for the trim now. This trim difference may have something to do with the  difference in our empty cg's.  Mine is 311 empty and I think I may be a little aft of what others have been reporting.  Now that I think about it a aft cg would make it easier to flare on landing so forget what I said. Anyway, it is working ok now and now I have a little oil leak on the oil pump of the Jab. This will be an easy fix and I will be confident with leaving the pattern now. The heat issue seems to be ok also.  Today I saw 145mph with full power. I think I will easily get 130 cruise with no wheel pants. Jack in Fresno and Los osos ca

  do not archive



JAPhillipsGA(at)aol.com wrote:

  



Jack, my knowledge of what makes "it" go up and down is very limited, 

especially when "it" doesn't seem to be doing what "it" should. Have you called Nick 

and Roger at ZAC with this ? When flying I have a touch of down trim when 

near max load and even less when flying alone. I neutral both aileron and 

elevator trims just prior to base and land without or with full flaps and pitch 

control all the way to stall on it's tail. I think I even scraped the rear tie down 

loop last summer and recovered to set it on the mains with gentle pitch 

control. I wish I had an answer, maybe calling the "brain trust" at ZAC can offer a 

solution. Best regards, Bill of Georgia

JAPhillipsGA(at)aol.com
Guest

Posted: Thu May 18, 2006 2:03 pm Post subject: link for "new " trim tab drawing

Jack, great to hear your progress ! I to flew this morning. Had business in 

Waycross about 160 miles south east and instead of driving for hours and hours 

I touched down after flying about an hour 10. Had a little tail wind. First 

real productive thing I have accomplished in three years of building and a year 

of flying. About a thousand more and I break even. Ha. Coming back the weather 

turned harsh and landed with a wicked cross wind, 20 gusting to 25 kts. She 

was frisky, but the Big Pilot in the Sky helped me get her down. Thanks to CH (at) 

Zac for that extra strong landing gear. It will take a bump. Best regards, 

Bill of Georgia

do not archive

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