The Ultra Light Aircraft Association (in australia) guys did a mod to the standard Turbulent that increased the spar strength and added a second mainspar support.
Cockpit is still the restricted size that suits a 5 ft tall Roger Druine though.
the plans were available from the "australian plans holder" for the cost of printing off the dyeline prints. from memory Gordon in melbourne was the guy.
When The SAAA changed structure to chapters and "experimental" they seemed to forget all about the old system of plans holders, which is sad really.
anyway in the interests of keeping the knowledge here are links to images of the australian turbulent plans.
falconar in canada used to sell copies of turbulent plans, maybe they still do.
their plans had no dihedral dimensions on them and in conjunction with a mate in the USA we gave falconar the missing details.
AT-01 the 3 view and specifications. none of the contact details on the page are valid now.
http://i1274.photobucket.com/albums/...ps75edd179.jpg
AT-02 covering and control runs
http://i1274.photobucket.com/albums/...psc3fef60c.jpg
AT-03 wing
http://i1274.photobucket.com/albums/...ps11d0a8c9.jpg
AT-04 strengthening details
http://i1274.photobucket.com/albums/...ps6f894208.jpg
AT-04-2 stronger wing spar
http://i1274.photobucket.com/albums/...ps3550c980.jpg
AT-05 wing ribs
http://i1274.photobucket.com/albums/...ps5c82d25e.jpg
AT-06 ailerons
http://i1274.photobucket.com/albums/...ps352472c4.jpg
AT-07 fuselage
http://i1274.photobucket.com/albums/...pse823e9f7.jpg
AT-08 fuselage details
http://i1274.photobucket.com/albums/...pse30564cb.jpg
AT-09 fuselage frames
http://i1274.photobucket.com/albums/...ps5f292a51.jpg
AT-10 fuselage turtledeck
http://i1274.photobucket.com/albums/...ps6982ee88.jpg
AT-11 rudder and elevator
http://i1274.photobucket.com/albums/...psa2e3ef34.jpg
AT-12 engine and instruments
http://i1274.photobucket.com/albums/...ps8809a1d9.jpg
AT-13 is a double sized drawing of the undercarriage so there is a left side, right side and overall shot.
http://i1274.photobucket.com/albums/...pseb45d814.jpg
http://i1274.photobucket.com/albums/...ps8e42584c.jpg
http://i1274.photobucket.com/albums/...ps25128738.jpg
AT-14 undercarriage parts
http://i1274.photobucket.com/albums/...ps1330988d.jpg
AT-15 more undercarriage parts
http://i1274.photobucket.com/albums/...ps6a2089c2.jpg
AT-16 tailwheel
http://i1274.photobucket.com/albums/...ps69659e84.jpg
AT-17 pedals
http://i1274.photobucket.com/albums/...ps4bdde47e.jpg
AT-18 control column and seat.
http://i1274.photobucket.com/albums/...ps8ad0204b.jpg
AT-19 control brackets etc.
http://i1274.photobucket.com/albums/...ps42db3188.jpg
AT-20 misc fittings
http://i1274.photobucket.com/albums/...ps4410b09b.jpg
I believe the images posted are good enough to build from.
I ended up doing my build from a computer screen with the images enlarged to show the detail I was working on.
DONT MIX THE PLANS.
either build from the french plans or build from the australian plans.