McG 6969 Posted February 12, 2022 Share Posted February 12, 2022 Great to see you still at your 'baby'... and great help from Lana it seems... Keep your mojo, young man. Chris Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted February 12, 2022 Author Share Posted February 12, 2022 Finally i can start making the wings ! For me , the most important parts of the airframe ! Got the wing moulds from under the dust and gave them a good clean-up . I removed all the sharp edges not to damage the vacuum bag. As you can see , the shape of the moulds on the backside , is too complicate to keep the vacuum bag free from damage. For this reason i made foam blocks to fill the space between the reinforcements. The blocks are made from 2K liquid foam (PU-foam)and cut to mesure after. At this time i also taped some magnets in place to hold down the airex later For more vacuum bag protection , sharp edges are taped. The moulds are now ready to be waxed and protected with pva demoulding film. Stay tuned the next days , it will be interesting ! 8 1 Quote Link to comment Share on other sites More sharing options...
alan p Posted February 13, 2022 Share Posted February 13, 2022 Good to see you still have the mojo and the workforce has increased? Quote Link to comment Share on other sites More sharing options...
Murat Kece 1 Posted March 15, 2022 Share Posted March 15, 2022 How's is it going Dick? Looking forward to an update! Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted April 13, 2022 Author Share Posted April 13, 2022 Hi guy's ! Sorry for not posting anything for a month , but i was really , really busy ! I put the fouga build on hold for some 2 or 3 weeks to take part on the 48 h build with the PSSA gang. It was a total succes and flew very well last weekend on the Orme in Wales ! Thanks Phil Cooke for the foto's ! To think it was just an insulation sheet 3 weeks ago !! The airframe was built in about 48 h but the finishing took just as much time i think...For the ones who do not recognize the model , it's a F2H-2 Navy Banshee from the fifties ! That's all behind us now so i can return to the shop and go on with the fouga wings ! After painting the moulds for the wing shells and ailerons and flaps , everything is ready to start laminating. see you in a couple of day's !! 11 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted April 13, 2022 Share Posted April 13, 2022 48 hours to produce that quality of model. The mind boggles. 1 Quote Link to comment Share on other sites More sharing options...
alan p Posted April 13, 2022 Share Posted April 13, 2022 If I produced that in 48weeks I would be well pleased, in 48 hours I am Gob smacked brilliant. 1 Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted April 13, 2022 Share Posted April 13, 2022 I could not stay awake that long. At best I could only manage two hours a day with work commitments, so that would take me 24 days . Steve 2 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted April 15, 2022 Author Share Posted April 15, 2022 Hi all ! The third wing shell is in the bag !! One more to go...tomorrow 4 1 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 10, 2022 Author Share Posted May 10, 2022 Hi all ! The wing shells are done now as are the twelve , yes twelve shells for ailerons and flaps ! Next thing to do is to make the internal construction to support the wing tube , retracts , servos , hinges... To support a wing tube , we need ...a wing tube ! I made it myself arround the wing joiner tube , the same way i made the rudder tubes. First , you wrap a layer of plastic arround the joiner to prevent the tube sticking to the joiner. Next comes a glass cloth tube over the plastic , then all you have to do is to bring on the resin and soak the fabric , done. To get the"sock" nice arround the the joiner , jou have to pull it straight and let dry. Next days (weeks) i'll be cutting wood to make ribs and reinforcments Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 10, 2022 Author Share Posted May 10, 2022 So , wingribs ! How can you make wingribs for a moulded wing ?!?! There's no way you can mesure it with normal tools . You could close up the two shells , glue them together and cut the wing up in pieces at the location where you want a rib but that's to much work lost. To transfer the inside shape of a rib to wood or paper , i use a special comb , often used to transfer cutting lines on floor tiles It prooves to be very accurate and ideal for the job. You can only transfer one side at a time (upper and lower shell )and the bring the two lines together on paper. This is now done for every rib i want (10pieces) The paper ribs are then cut out and glued onto the wood. I used poplar ply 4mm wich is light but not as strong as birch ply. Birch is very hard to get here and the price is going trough the roof !! The wood is then cut with my old (1997) bandsaw The rbs cut this way fit extreme well with very little sanding needed ! After the fit , i made the holes for the tube and prepaired a spar for the outer part of the wing. wheather this is all strong enough , i have to guess and would be happy with comment of any kind ! Tomorrow i'll prepaire the space for the wing air brakes aileron servo , and wing tip tube. I hope these ribs will fit the second wing so i don't have to go through all this again !That will prove that the wings are symetric to one another ! 8 Quote Link to comment Share on other sites More sharing options...
Hangarqueen Posted May 11, 2022 Share Posted May 11, 2022 Wow, great stuff. As (yet another) Belgian, I've been looking for a good Fouga RC model for a while now, and I'm amazed that I haven't found this thread earlier. I might have overlooked this info, but what will you power it with? Last time I saw the real thing, was in 2019, "Liberation Days" at Deurne Airport (EBAW). I'll be following this one! Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 11, 2022 Author Share Posted May 11, 2022 Hi H ! It will be powered with a single Schubeler 128mm fan on 12 or 14 s Quote Link to comment Share on other sites More sharing options...
Hangarqueen Posted May 11, 2022 Share Posted May 11, 2022 I just found the info on the previous page, sorry for overlooking that.... I'll be very curious to the final weight. Phaedra Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 11, 2022 Author Share Posted May 11, 2022 Yes , the weight, allways the enemy! I will be happy with anything under 12kg . With the motor now in the fan i will have arround 10kg of thrust. I saw the fouga of Jörg Rehm on YouTube weighing in at 17kg with 30cm more span and it fly's perfect. Hé has the stronger motor in thesame fan but then the ampèrage goes through the roof !!(200 amps) Quote Link to comment Share on other sites More sharing options...
Hangarqueen Posted May 11, 2022 Share Posted May 11, 2022 Well, as the Fouga has its roots as a glider, 10kg of thrust should be enough at 12kg AUW. Are you planning on implementing scale speedbrakes? I've seen some very nice examples 3D printed in other builds, even though they might not be very effective. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 11, 2022 Author Share Posted May 11, 2022 The speed brakes are on the to do list and the room for them is prepaired . However it's possible i will add them after the first flights .Do you have a link for the 3D printed ones?Thanks ! Dirk. Quote Link to comment Share on other sites More sharing options...
Hangarqueen Posted May 11, 2022 Share Posted May 11, 2022 The designer showed them on this German forum thread about the RBC kits Fouga: https://www.rc-network.de/threads/rbc-kits-fouga-magister.11869447/page-3 I think this guy will provide you with the STL files on simple request (I know he did for other builders of the same kit) Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 12, 2022 Author Share Posted May 12, 2022 Checked out the speedbrakes for the rbc kit and it looks very nice but my span is 2m 70 so too small...I'll try to find a 3D enthousiast to enlarge them Thanks for the info ! Meanwhile prepped the speedbrakes-bay and the aileron servo tray 1 Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted May 12, 2022 Share Posted May 12, 2022 No need for a 3D specialist as the STL can be re-scaled in the slicing software! Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted May 24, 2022 Author Share Posted May 24, 2022 Hi all ! Thanks for the tip Ron ! Not much progress it seems but i'm going as fast as i can... This rib-fitting-reinforcing-designing the wing interior takes forever ! Most of it is now ready to copy as i want to keep the originals for the next wings. Most of the parts are interlocking wich means i made most of the parts twice !First without tabs to check the fit and then WITH the tabs ! Here's the result so far : Still left to do is the routing of the servo cables , add sheer webs , anti rotation pins and others... Stay tuned if you're not bored yet !? 7 Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted May 25, 2022 Share Posted May 25, 2022 Mesmerised, definitely not bored! 1 Quote Link to comment Share on other sites More sharing options...
Graham Davies 3 Posted May 25, 2022 Share Posted May 25, 2022 This is the most incredible workmanship. A fascinating build Dirk; truly inspiring. Graham 1 Quote Link to comment Share on other sites More sharing options...
Murat Kece 1 Posted May 25, 2022 Share Posted May 25, 2022 Excellent and masterful Dirk.. Awaiting the final product with anticipation.. Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted July 1, 2022 Author Share Posted July 1, 2022 Hi all ! Another month has passed and the wing shells are about to being closed ! Sinds the last post i installed the wiring for servos , lighting , and retracts. This wing is ready to be closed after i dry-fitted the top shell (out of the mould). Before glueing the two halves together , i prepaired the second wing , thesame way , and made copies of all the parts needed for future wings. The second wing (R) I used some tape to protect the wiring from epoxy when closing the shells. The last test , to see if the ribs dont touch the top shell , or the gap between ribs and shell isn't too big (to much glue ),is done by placing a small plasticine ball between ribs and shell ,before dry fitting the top shell (in the mould ). After closing ,bolting together, and seperating the moulds again ,you can see how much the plasticine ball is crushed. In this case , the ball is reduced to aprox. 1mm , just fine !! This is done in several spots , just to be sure . Touching ribs make the wing surface bumpy ! Too much glue is ballast !! That's all for today , tomorrow is closing time !! 5 Quote Link to comment Share on other sites More sharing options...
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