Vortilons

Wing Vortilons

Vortilon construction is detailed in the Roncz Canard plans since they are a mandatory addition to the wings if flying the Roncz Canard.  There was a well-known Cozy accident that resulted from a main wing stall due in large measure to the pilot/builder removing the Vortilons before a test flight.  Clearly these little guys are critical to safety of flight when incorporating a Roncz Canard into the configuration.

Now, as far as classification . . . although these are specified & mandated in the Roncz canard plans (canard = Chapter 10), they clearly go on the main wings (wings = Chapter 19).  So I’m adding them here as noteworthy item, albeit I’ll leave this page “chapter-less.”

18 October 2015 Since I had a little bit of pure epoxy left over from glassing the left canard swoosh tip, I grabbed the BID scrap box and a piece of plastic to make a 4-ply BID sheet, of which I would cut out a Vortilon or two.  I laid the 4 plies of BID into a pre-preg setup and poured all the epoxy into the layup.  After heating up the pre-preg with the heat gun it flowed well enough to wet out all the epoxy.  I then put another plate on top of it and weighed it down with my heavy tool bag (pic below).

Vortilon 4-BID layupWeighing down Vortilon 4-BID layup

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19 October 2015 — Since I had used some leftover epoxy yesterday to make a set of Vortilons, today I wrote it into the work plan to finish the set for both wings.  Here’s the 4-ply BID layup for two more sets of Vortilons.

#2 vortilon layup 6"x 8" 4-ply BID

And here are the initial two that I cut from the glass I laid up yesterday.  These are the largest of the 3 sets of Vortilons.

BL 80.0 Vortilons cut

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Recent Posts

Project Update

Hi Folks,

Ok, about 3 months back into the build.  My next update I’ll probably stop tracking this point.

The canopy is pretty much finished except for the external finishing of the frame, which I’ll do with the rest of the airframe micro finishing.  I do need to dial in the canopy latch handle a bit more, have a lot of ideas from a lot of folks (thanks all!) on how to do that, and am confident it will work fine when completed.

The nose and aft nose/avionics cover install is about a week from being finished, and I have now started my transition to the strake build (Chapter 21).  I will start the strakes while concurrently finishing up the nose using the glass cure cycles of each to work on the other.

I will be out of town for Thanksgiving, which will then transition into a trip out west to visit friends and family, then a few weeks on the build in December.  

That all being said, I hope to be done with the strakes by New Years.

Again, after the strakes the final big airframe assembly will be the winglet/rudder install (Chapter 20).  

 

  1. Chapter 13/21/22/24/26 – Seats, etc. Leave a reply
  2. Chapter 13/21/26 – Industrial Chic Leave a reply
  3. Chapter 26 – Initial Cockpit Paint Leave a reply
  4. Chapter 22/24 – Function over form Leave a reply
  5. Chapter 22/24 – Cockpit prep (cont.) Leave a reply
  6. Chapter 22/24 – Cockpit Paint Prep Leave a reply
  7. Chapter 21/22/24 – Strake openings cut Leave a reply
  8. Chapter 22/24 – GIB area ducts Leave a reply
  9. Chapter 18/22 – Heat duct installed Leave a reply