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Scratchbuilt Canard?

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Brad Strand
Homebuilder or Craftsman
66
Posts
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#1 Posted: 10/27/2009 14:26:17

I really enjoyed this months Sport Aviation article on canard aircraft.  My interest in this unusual design type was a big part of my early fascination with homebuilt aircraft.  While the current canard kits are wonderful aircraft they require an initial investment that is beyond my financial means.  I am wondering why, with the great variety of aircraft available, there seems to be a huge void in the area of scratchbuilt canard aircraft.  Will we ever see another canard design that can be scratchbuilt or is the only alternative to find a set of unused, and no longer supported :-( , vari-eze plans?



Adam Smith
Young Eagles Pilot or VolunteerHomebuilder or Craftsman
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#2 Posted: 10/27/2009 20:07:35

The VariEze still takes some beating.... it just won the fuel efficiency contest at the Copperstate fly-in last weekend, 45 miles per gallon at 207 mph!

If you can't track down some old Rutan plans, you do have the Cozy as a decent plans-built option http://www.aircraftspruce.com/catalog/kitspages/cozy.php

 

 



Reggie Smalls
Homebuilder or Craftsman
126
Posts
49
#3 Posted: 10/27/2009 20:14:57

The Stagger EZ is an interesting project too  - - http://www.wrightaircraft.com/Stagger_EZ/body_stagger_ez.htm



Jon McDonald
Homebuilder or Craftsman
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#4 Posted: 10/28/2009 02:30:51

Actually, the majority of canard builders that I know of are scratch building, rather than kit building.

The most popular is the Cozy MkIV.  It is a 2+2 canard that is a derivative of the Long-ez.  Aircraft spruce bought the rights to the plans, and IIRC, the reported that they sell about 100 every year.  Some folks have made some absolutely awesome variations of the cozy.  Some have replaced the standard 180hp IO-360 with a 260hp IO-540 and added retractable gear.  Top speeds have been reported in th 240kt (276mph) range!

Also, several people are building the Long-ez or derivatives. the long-ez came after the vari-ez and gave better performance in almost all areas.  The Long-ez was the aircraft that Dick Rutan and Mike Melville flew around the world in.

Even though complete long-ez plans have not been sold for over 20 years, there is a new development called the "Open-ez" which is basically a clone of the long-ez.  It is built via combining original long-ez plans that are currently being (legally) sold on CD, with key templates that are available for free on the internet.  Here is an article on another forum that describes the process: Open-ez description 

The scratch build Canard community is alive and VERY VERY strong.goggles



Jon McDonald Building Sonex #1287
Brad Strand
Homebuilder or Craftsman
66
Posts
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#5 Posted: 10/28/2009 07:59:10

This is really interesting information.  I had no idea that the canard building community was so active.  Thanks for pointing me in the right direction.



David Adams
Young Eagles Pilot or VolunteerHomebuilder or Craftsman
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#6 Posted: 10/28/2009 21:14:33

You can find projects to purchase that will often be sold very reasonably.  You could buy a Vari Eze or Long EZ in the "tub" stage and give you a head start.  Just get an experienced builder to help you evaluate the project before purchase.

Other valuable sources of info are the canard Aviators' group on Yahoo - http://groups.yahoo.com/group/canard-avaitors/ and www.ez.org



Dave Adams Long EZ N83DT Race 83
David Adams
Young Eagles Pilot or VolunteerHomebuilder or Craftsman
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#7 Posted: 10/29/2009 07:30:41

I can't seem to edit the bad link that I posted above.  I hope this link works -  http://groups.yahoo.com/group/canard-aviators/



Dave Adams Long EZ N83DT Race 83
Robin Shaw
Vintage Aircraft Association MemberHomebuilder or Craftsman
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0
#8 Posted: 10/29/2009 20:33:46

I am building Pou du Ciel, technically a canard, wood and fabric using a subaru that I got from salvage and overhauled myself.

Using the "Fisher painting process" and VFR equipped, I expect to be flying it by March 2010.

It will come in at under $2,500. complete!



Reggie Smalls
Homebuilder or Craftsman
126
Posts
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#9 Posted: 10/29/2009 20:46:36

Never thought of a Flying Flea as a canard before.   $2,500 complete is a real achievement.  Post some photos when yours is flying.



David Deweese
Young Eagles Pilot or VolunteerHomebuilder or Craftsman
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#10 Posted: 11/3/2009 12:47:30

The little C.P. 150 Onyx is intriguing:

http://www.homebuilt.org/kits/littner/cp150.html

As is the Junqua IBIS:

http://www.junqua-aircraft.com/

If you're really keen on the scent of canards check out http://www.canardzone.com/, they've got an extensive forum with lots of information on the Open-EZ.



Patrick Panzera
Young Eagles Pilot or VolunteerHomebuilder or CraftsmanUltralight EnthusiastAirVenture Volunteer
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#11 Posted: 11/5/2009 18:28:23

Let's not forget the Dragonfly.

Although it's not technically an "orphaned" design, it functions that way with a VERY supportive e-mail list that can answer all your questions, in almost real-time. It's a wealth of resources such as partially complete projected (by far the best bang for anyone's buck) as well as unused plans, parts, engines, etc. 

 http://groups.yahoo.com/group/Dragonflylist/

http://www.eaa.org/experimenter/articles/2009-07_womb.asp

Pat



Michael Rochek
1
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0
#12 Posted: 11/9/2009 20:17:13

Hi Brad,

You have options avialable for a scratch built canard project.  While Rutan stopped selling plans to the vari eze / long ez / defiant back in 1985, plans still turn up for premium prices. 

If you just can't find the plans, you might try to purchase a copy of the plans from one of the thousands of builders out there.  Most builders will not let there plans go, but might allow you to make a copy of their plans for a fee.  Templets for the wings and Ronz canard should be easy to obtain from one of the past canard builders.  

The e-racer might be another option for you.  The e-racer mark ll is a side by side full retract version of the long eze with a lycoming located at the aft end. Many e-racer plan sets were sold with fewer built.  The designer may not support the E-racer at this time, but plans are out there and turn up for sale now and then.

Also, Aircraft Spruce still sells cozy mark 4 plans, but does not support this aircraft. 

With so many canard builders out there, you should be able to get all the support you need to build correctly and fly safely. Perhaps the support you need will be found in one of your local EAA chapters.

Good luck.

Mike   



Hans Zwakenberg
Homebuilder or Craftsman
2
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#13 Posted: 11/11/2009 01:28:30

Hi Group,

 

the Junqua RJ.03 IBIS was mentioned a few posts back.  I'm building one and this is my Junqua IBIS project site .

Even if Jean Claude Junqua decided to stop marketing into the US, he will support existing plan/license owners, US-based builders too.

So if you are interested in this little VW-powered canard, taking over a stopped project is no problem.  License transfer is easy (and free), and as long as you keep JC posted on how to reach you he will send you (infrequent) updates as well.

Feel free to contact me with any questions, you'll find my email address  on my project site.

 cheers,

Hans



Jim Hann
Vintage Aircraft Association MemberHomebuilder or CraftsmanAirVenture Volunteer
125
Posts
41
#14 Posted: 11/13/2009 22:57:33

Brad,

One or two other resources for canards, I'm not sure they were mentioned.  First is the Canard-Aviators group on Yahoo, lots of very experienced canard pilots and builders.  Second is the Cozy List on Google Groups, you can find more information at Marc Zeitlin's www.cozybuilders.org.  I have been a member of both, and I own several sets of canard plans, and I possess all of the required documents to create an Open-EZ too.

Arguably, the Rutan aircraft may be better supported now than in their heyday.  Not by Burt, Mike, et al but by the open communication between builders on the internet, much more expansive and far-reaching than a quarterly newsletter.

BTW, both groups welcome ANY canard builder, not just Rutan and/or derivatives of his designs.

Jim
Cozy III #455
Cozy IV #970
Vari-Viggen #???
Open-EZ #JH1
etc.



http://sites.google.com/site/jimscavaliersa1025/ http://picasaweb.google.com/CozyCanard http://sites.google.com/site/cavalieraircraft/
Spencer Gould
Homebuilder or Craftsman
32
Posts
1
#15 Posted: 11/18/2009 21:30:56

 

I’ve been following the EZ aircraft for about 18 years now and helped build a Velocity. can anyone tell me what a Ronz canard is? I am assuming it’s a new canard airfoil that takes care of the Cl drop when you fly into rain?

 

Spencer

 



Jim Hann
Vintage Aircraft Association MemberHomebuilder or CraftsmanAirVenture Volunteer
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#16 Posted: 11/18/2009 22:49:26 Modified: 11/18/2009 22:54:49

Spencer,

You are correct.  Google John Roncz (note the spelling).  The official designation is the Roncz 1145MS IIRC.  I own the plans for both US versions of the Cozy.  I also have the high performance rudder plans and the Vance Atkinson adapted plans for the Roncz on a Cozy III.  Mike Melvill put himself in harm's way to flight test airfoils to improve on the GU, since it didn't tolerate builder variances very well.  Some folks had a mild pitch up in rain but many had a very pronounced pitch down (loss of canard lift).

Jim

 



http://sites.google.com/site/jimscavaliersa1025/ http://picasaweb.google.com/CozyCanard http://sites.google.com/site/cavalieraircraft/
William  Melvin
1
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0
#17 Posted: 12/3/2009 21:22:39

Brad,

I have a set of Vari Eze plans for sale if you are interested.  william584@centurytel.net or bmelvin@transstates.net.

Bill



Jeff Fisher
Homebuilder or Craftsman
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0
#18 Posted: 3/9/2010 20:08:49

Hi Spencer,

you are correct. The Ronz canard has no drop in the rain.

Jeff



Lincoln Ross
53
Posts
5
#19 Posted: 3/12/2010 22:05:02

 I knew it was bad. I didn't know it was this bad:

 

 
dragonflycanardpolartemp.JPG

Ok, that probably makes it look even worse than it is. At least if you've got lots of power. The max lift is still Cl of 1.2  If the airplane weighs 900 lbs (total guess) and at canard Cl of 1 it's going, say, 70mph (total guess), your prop is 70 percent efficient, and your canard takes 60 percent of the load (total guess), then you're burning an extra 7 hp if the prop is dirty. That's a VW powered plane, right? (caveat: my math isn't always absolutely perfect, though I suspect it's pretty close here)