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

Hey Guys,

Currently working to knock out the strakes (Chapter 21).  The plan is to get the bottom skins on and then flip the bird to glass those bottom strake skins.

However, prior to flipping the bird I will take a few days to finish up the nose and aft nose/avionics cover install.  

Then, once the plane is upside down to finish the bottom of the strakes, I plan on knocking out a whole slew of things while it’s inverted: including bottom strake-to-bottom wing intersection finishing, hell hole cover, belly RAM air scoop, main gear leg-to-fuselage interface, firewall trim and lower cowling install.  Yes, I expect this bird to be inverted for about a month before it gets flipped back upright to close out the strakes with the top skin install.

At that point it will be on to the winglet/rudder install (Chapter 20).  Then engine and upper cowling install, finish and prime/paint.

 

  1. Chapter 21/22 – Daily strake layup Leave a reply
  2. Chapter 21 – Left strake top skin Leave a reply
  3. Chapter 21/22 – Strake top skins Leave a reply
  4. Chapter 21/22 – Some strake stuff Leave a reply
  5. Chapter 21 – Ribs & baffles, Oh my! Leave a reply
  6. Chapter 21 – Right strake leading edge Leave a reply
  7. Chapter 21/22 – Left strake opening Leave a reply
  8. Chapter 21/22 – More strakey stuff Leave a reply
  9. Chapter 18/21 – Left strake verticals Leave a reply