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Kent's Long-EZ project


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#161 Jon Matcho

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Posted 04 June 2017 - 09:38 AM

Impressive Kent... I'll be sure to come back to these posts if I ever get the urge to do this.  I see a familiar name on that prop balancer PDF attachment -- Patrick Panzera.


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Rebuilding Quickie Tri-Q200 N479E
Building Cozy Mark VI+ (widened rear)
www.canardzone.com/members/JonMatcho (I know, it's broken... for now)


#162 Sammac91

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Posted 04 June 2017 - 09:01 PM

Hi Kent, do you have any more info on your nose retract?
Cheers,
Sam

#163 Kent Ashton

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Posted 06 June 2017 - 09:55 AM

Pilots like barbecue, right?  Back in this post I showed my homemade smoker

http://www.canardzon...roject/?p=59288

 

It worked but took a lot of charcoal and tending.  Since then I bought one of these Akorn Char Grillers.

https://www.chargril...m/kamado-grills

 

Lowes has them on sale for $250 right now, less than half the price of a Big Green Egg and they work just as well.  Load it up with charcoal (I use briquets), it comes up to temperature in about 20 minutes.  You put on your ribs and after some small air adjustments it will hold a temperature for hours while you build parts.  After three hours of smoking you will only use 1/3 to 1/2 of your charcoal.  There are lots Youtube videos.

 

Pic: smoked a chicken here but ribs and brisket are better.

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-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#164 Barry

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Posted 15 June 2017 - 05:58 PM

After getting steered to this thread by Kent,

 

just amazing what Kent and the rest of you can do.



#165 Kent Ashton

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Posted 15 June 2017 - 06:37 PM

The internet is a great resource. You can do things you never would have attempted back in the old days. Thanks to folks like Jon who make it possible.

BTW, Jon, what was your motivation for starting CanardZone? Certainly not money!

-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#166 Jon Matcho

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Posted 19 June 2017 - 07:06 AM

BTW, Jon, what was your motivation for starting CanardZone? Certainly not money!

 
The first incarnation of the Canard Zone was started by Nick Ugolini as an alternative to the email lists, originally attached to Nat Puffer's www.cozyaircraft.com site.  When Aircraft Spruce announced the purchase of Cozy Aircraft from Nat, Nick put out the word that he wanted to transfer ownership of the site so that it would be independent of Aircraft Spruce and would remain a community resource.  Being a full-time Internet guy I submitted my offer to build and host the new site.  Nat and Nick passed the baton and the Canard Zone was officially launched on December 17, 2003 -- 100 years to the day after the Wright Brother's historic first flight!
 
Being a new builder at the time my interest was only to ensure that I would be able to read posts like yours!   :)  My interest now is essentially the same:  to support sharing information, to attract new members, builders, and flyers, and to make the Canard Zone the go-to place and directory of all things relating to experimental canard aircraft.
 
Can't be that hard  ;) ... thanks Kent!

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  • Canard Zone 2004-07-01.png

Jon Matcho :busy:
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Rebuilding Quickie Tri-Q200 N479E
Building Cozy Mark VI+ (widened rear)
www.canardzone.com/members/JonMatcho (I know, it's broken... for now)


#167 Kent Ashton

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Posted 19 June 2017 - 08:36 AM

Ah-ha, a page from 2004 above.  Interesting history.  Hope you have made plans for CanardZone when you go to that big hangar in the sky.  :-)

 

Time flies.  I remember using dial-up internet in Alamogordo, NM in the late 80's, when I had to call Las Cruces for a hook-up and wait for the beeps to settle down.  At that time, the only aviation site available (as I recall) was rec.aviation.homebuilt.  

 

I finally got my Basic Med done and got back in the air Saturday after being grounded for about 9 months. In some ways, not flying is a lot easier than flying.  Bought a newer Ipad Mini and updated my Foreflight subscription.  Renewed the condition inspection.  The Cozy flew just fine.   Now I need to wash the EZ and take a few sale pics.


-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#168 Jon Matcho

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Posted 19 June 2017 - 10:30 AM

Hope you have made plans for CanardZone when you go to that big hangar in the sky.  :-)


Woah there, slow down. I'm in my prime! :) Yes, turnover of the Canard Zone is actually covered in my will (for whatever reason this has been criticized elsewhere) where I maintain a list of potentially interested parties that would be presented with the option to run the site. I don't actually expect it to get that far before I figure out a way to transition into community-based management.
 

At that time, the only aviation site available (as I recall) was rec.aviation.homebuilt.


Wow, blast from the past.  Still alive, but on life support:  https://groups.googl...ation.homebuilt
 

I finally got my Basic Med done and got back in the air Saturday after being grounded for about 9 months. In some ways, not flying is a lot easier than flying.  Bought a newer Ipad Mini and updated my Foreflight subscription.  Renewed the condition inspection.  The Cozy flew just fine.   Now I need to wash the EZ and take a few sale pics.

 
Congratulations, well done. Now you're in your prime too!

Jon Matcho :busy:
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Rebuilding Quickie Tri-Q200 N479E
Building Cozy Mark VI+ (widened rear)
www.canardzone.com/members/JonMatcho (I know, it's broken... for now)


#169 Kent Ashton

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Posted 26 June 2017 - 02:49 PM

Finally got a chance to test the new prop and was pleased with it.  It seemed to run smooth with no noticeable vibration.

 

The engine does not overspeed on takeoff and climb.  At 8500 msl, 7 deg C, 2650 RPM. leaned to peak power I was seeing 136-140 KIAS (157-162 KTAS) on my uncalibrated ASI.  This is roughly 10 knots faster than my old underpitched prop and comparable to my friend Mark's Hertzler prop which he allowed me to test.   The main thing is that I didn't have to baby the engine to keep it from overspeeding.

 

I shall call her an "Ashton Blue Blade".  :-)

 

 

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  • IMG_0335.jpg

-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#170 Voidhawk9

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Posted 26 June 2017 - 02:52 PM

Sound good, and looks great. :)


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#171 Jon Matcho

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Posted 27 June 2017 - 06:02 AM

Wow, that is impressive Kent.  Is there a test phase you need to go through with the new prop?


Jon Matcho :busy:
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Rebuilding Quickie Tri-Q200 N479E
Building Cozy Mark VI+ (widened rear)
www.canardzone.com/members/JonMatcho (I know, it's broken... for now)


#172 Kent Ashton

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Posted 27 June 2017 - 07:50 AM

Is there a test phase you need to go through with the new prop?

 

Ha!  Thanks for reminding me, I was getting ready to put an ad in Barnstormers.

 

Yes, a new prop is generally considered a "major change" that requires putting the aircraft back into Phase I.  See Part 21.93(a)

https://www.gpo.gov/...l1-sec21-93.xml

 

5 hours per my Operating Limitations.  Some O.L.s may require more.  Dang, I'll just have to go fly this week.  :-)


-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#173 Barry

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Posted 29 June 2017 - 10:53 AM

That is phenomenal Kent.

 

I think, beside the skill to build, it requires a lot of confidence to test your own prop...


Edited by Barry, 29 June 2017 - 10:54 AM.


#174 Kent Ashton

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Posted 01 July 2017 - 11:46 AM

Covers:  I have made several and enjoy the process.  I use one of the lighter grades of Sunbrella for the main cover and make an inner liner over the canopy out of fabric similar to this flannel fabric from Noah.    http://wiki.shoppero...t_Vehicle_Cover

 

I stick the inner cover to the main cover with three velcro patches.  When I stored my Cozy III outdoors, I made a full cover (pic).  Yeah, that was a little anal.  :-)  Below is a traveling cover for the EZ.

 

I start by taping paper to the canopy to make a paper pattern and cut the pattern as shown in the pic--this is my Cozy IV pattern.  Then it's a matter of sewing the canopy sections together, put it on the airplane and adding more fabric.  Fit, cut, sew, repeat many times.  You need an industrial machine for this.  A "walking foot" machine is best.  I started with an old craigslist Singer industrial machine but it sewed at lightning speed--too fast.

 

This pattern making technique is similar to making "flexible shape patterns" used in the process of English-wheeling auto panels.  There are some good Youtubes on it.  Good to know if you every want to duplicate a three-dimensional curved surface.  http://cyclesource.c...wsblog/?p=27979 

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-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#175 Kent Ashton

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Posted 03 July 2017 - 10:28 AM

Nose lift motors:  The Wright and Wilhelmson nose lifts use Thomsen Electrak PPA motors.  pp 22-23 here

http://www.thomsonli...uators_cten.pdf

 

Wright's design used the whole Thomson shebang.  Wilhelmson developed a lighter ball-screw design that was more compact.  It seems that there were two versions of the motor floating around, an 18:1 ratio and a 58:1 ratio.  The 18:1 ratio runs up and down faster but doesn't have as much mechanical advantage (leverage) as the 58:1 ratio which moves slower.  This I learned the hard way by ordering a Thomson part and having to buy a second motor.   You can find them on ebay sometimes.  The ratio is shown on a sticker on the motor.

 

In addition, the same motors come with or without a manual drive shaft sticking out of the top of the motor.  I learned this one the hard way too.  :-(   But I managed to swap some parts and get a 58:1 ratio and the manual option.  For now, I'm not connecting the manual option on the Cozy.  It seems unlikely I would encounter a failure where the mechanism would not extend.

 

They are often called "slide out" motors because they're used to operate the slide-out rooms on recreational vehicles.

 

BTW, the Wilhemson schematic looks rather complex.  My buddy recommended this relay which is very simple to wire-in and seems to work fine

http://www.elecdirec...CFdgKgQodAp0CgA

 

On the EZ, I just use the 'ol plans crank.  I can see no need for electric gear there.  The Cozy was starting to hurt my back.


Edited by Kent Ashton, 03 July 2017 - 10:32 AM.

-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#176 Kent Ashton

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Posted 03 August 2017 - 10:23 AM

Here's an idea for adjustable rudder pedals.  You can flip them for shorter or taller pilots or just center them for the perfectly-proportioned.  I just made some 5" long for a potential Andre-the-Giant buyer.  I can flip them for a dwarf pilot.  Covering all the bases.  :-)

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Edited by Kent Ashton, 03 August 2017 - 10:25 AM.

-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#177 Andrew Anunson

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Posted 10 August 2017 - 02:48 PM

 

I start by taping paper to the canopy to make a paper pattern and cut the pattern as shown in the pic--this is my Cozy IV pattern.  

How much do you charge to make a Cozy MKIV Cover?


Andrew Anunson
I work underground and I play in the sky... no problem

#178 Kent Ashton

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Posted 11 August 2017 - 07:15 AM

Sorry Andrew, i only work for fun. You can buy them however. The info might be on Marc's site. "Dorothy". Can't recall the last name

-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#179 Kent Ashton

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Posted 19 August 2017 - 04:51 AM

I've been talking to prospective buyers about the H2AD or "76 Series" engine on my EZ.  I would not recommend building with an H2AD because there are several things that have to be changed to use the engine in an EZ but in some ways, it's an improvement over the regular O-320s.  "The Rest of the Story" by Bill Marvel and Bill Scott explains the initial problems with the 76-series engine and why the H2AD doesn't have the same valve-wear problems as the regular O-320s.   This is a good read for anybody who owns a Lycoming.

https://web.archive....arvel/tbo3.html

 

From my reading, valves, cams and lifters are the weak areas of the Lycs.  It's about time to do the "valve wobble check" (SB 388C) on my Cozy O-360 which detects the valve-stem wear they are talking about in the article.

https://www.lycoming...ulletin-no-388c

 

You can see one of the tools being used to measure valve wobble in this thread.  Recommended at 400 hour intervals, BTW.

http://www.vansairfo...t=152293&page=2

 

ValveWobbleTool4.jpg


Edited by Kent Ashton, 19 August 2017 - 05:08 AM.

-Kent
Cozy IV N13AM-650 hrs, Long-EZ-55 hrs


#180 Barry

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Posted 19 August 2017 - 02:13 PM

Interesting stuff, thanks for the link.






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