Phil Cooke Posted January 31, 2020 Share Posted January 31, 2020 Must be getting close to glass with details like this being added Dirk - great stuff! Is there a little lead in fillet at the extreme L/E of the wing too - I've not familiarised myself with it well enough yet as I'm still a mile off - not having yet built my fus! Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted January 31, 2020 Author Share Posted January 31, 2020 Indeed i have Phil,will post tonight.The ply joiner stands out a lot but i found a way around it Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 31, 2020 Share Posted January 31, 2020 Hoi Dirk, I received a message from my operator today telling me that your 'mms' was undeliverable. I finally managed to locate it via their website... Anyhow, thanks for the nice pic. See you soon... Cheers Chris Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 1, 2020 Author Share Posted February 1, 2020 This is my solution for the fuse-wing transfusion in the front. Making the fillets completely in balsa would give a vulnerable situation ,so i adapted a little piece of hardwood to the wing joiner.Remember the inside of the fillets is already reinforced with glasscloth for strenght.The finishing touch will be done with filler and ultimatly glassed overall Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 2, 2020 Author Share Posted February 2, 2020 With the ply reinforcement plate on the back-side of the wing in place ,the fuse needs a few mm more thickness to fully bury the ply. If you don't do this ,the ply plate would be ''on top''of the wing and give a weird sight. That's my opinion anyway... Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 2, 2020 Author Share Posted February 2, 2020 Last thing tonight is to form a belly-pan under the wing. I took 5 mm balsa to do this and sanded the edges as much as possible in advance. the ply reinforcement will be added later and then covered with balsa . I see a lot of sanding coming my way ! Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 3, 2020 Author Share Posted February 3, 2020 Hi guy's , With the belly parts in place it's time to adapt the ply wing bolt plate. I sanded away the sides untill they were completely under the belly top (in fact the bottom as we are ''inverted''now).Glued it in place with epoxy and drilled the holes for the wing bolts,guided by the holes in the wing. I then covered the ply with balsa and sanded it flush with the rest of the belly and the fuse behind the wing Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 3, 2020 Author Share Posted February 3, 2020 The little gaps will be filled with light weight filler and will all be forgotten when everything is glassed.The underside of the fuse runs in a smooth line now ,from the front to the back Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted February 4, 2020 Share Posted February 4, 2020 very nicely done Dirk, these belly pans are always a labour of love as you approach the end of any build, they seem to take a lot of fettling to create the right result around the load spreader - which you have done here of course! Did you also put the block of wood on the top side of the wing as per the plan (to stop the wing being over tightened? Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 4, 2020 Author Share Posted February 4, 2020 Hi Phil,i didn't do a whole block but just two thick balsa roundels on the wing bolt plate and a thin ply plate on the upper side of the wing , that should do the job me thinksLike this the wing can slide of instead of breaking the fuse sides,in the event of a hard landing Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted February 4, 2020 Share Posted February 4, 2020 Yep! Great thinking, I like it. I'll have to do something slightly different again with the torque rods I've fitted, but I like the balsa roundels... are you painting yours Black, Yellow and Red Quote Link to comment Share on other sites More sharing options...
John H. Rood Posted February 5, 2020 Share Posted February 5, 2020 Just in case anybody besides me was curious, I was going to ask Dirk about what wax and PVA combo he used in his canopy frame molding process -- but seeing his photos I decided to just investigate them myself. So here are product links: Wax and PVA. Edited By John H. Rood on 05/02/2020 18:04:54 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 5, 2020 Author Share Posted February 5, 2020 Good work Clouseau ! HP textiles is my supplyer for everything where moulding is involved . Great products and service delivered to your door. Quote Link to comment Share on other sites More sharing options...
John H. Rood Posted February 6, 2020 Share Posted February 6, 2020 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 Hello again to all , With the wing fitted to the fuse ,the last task on the wing is to make and fit the ailerons.I started them earlyer with the hinges at the top edge but i didn't like it ,and they were a bit banana too so i tossed them. I made a new pair out of triangular stock balsa and rounded off the front side to be hinged in the middle.The hard part is now to make the trailing edge of the wing hollow in order to get the gap between wing and aileron as small as possible. I tried to file a round gutter in a balsa strip but that didn't work out as i wanted.I couldn't get the width correct. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 I then tried a pair of little triangular stock slats glued side by side on the trailing edge of the wing.This time i had more succes !All i needed to do was sand off the sides flush with the wing and sand the ''gutter' round with sandpaper wrapped around a 6mm dowel. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 With the ailerons fitted it's time to drill the holes for the hinges.Got out the dremel with a 2.5mm drill on high speed (for balsa) and drilled them right in the center. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 M Placed the aileron in the wing an marked them where the corresponding holes should come and drilled these too. It's a delicate job as the ailerons are not much thicker than the drill !Controlled the dept with the lenght of the drill. Made all the holes a little conical to get a tight fit. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 6, 2020 Author Share Posted February 6, 2020 There is also need for a little recess in the leading edge of the aileron to allow movement up and down. This is because the hinge line lies in the center of the aileron 's leading edge-curve. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 7, 2020 Author Share Posted February 7, 2020 Aileron management is for tomorrow, time to sleep !. Did anyone noticed a difference in lenght between left and right wing ? I have 2mm ????I mesured thesame on the plan... Hope i can sleep with this .... Quote Link to comment Share on other sites More sharing options...
Andy Meade Posted February 7, 2020 Share Posted February 7, 2020 Lovely pocketed ailerons. Don't forget to leave plenty of clearance for the thickness of your glassing! Strange about the wing length mismatch. Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted February 7, 2020 Share Posted February 7, 2020 yeah nice job!! Where is the difference measured Dirk? Along the sub T/E from root to tip? It's certainly drawn with equal lengths on paper. I guess there is a tolerance stack up with the exact position/angle of the root and tip ribs, the fixed length of T/E stock and the angle of the tip ... along which edge are you measuring and seeing the delta?? Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted February 7, 2020 Share Posted February 7, 2020 I wouldn't lose too much sleep over it Dirk... Quote Link to comment Share on other sites More sharing options...
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