Sandbagger Posted May 18, 2019 Author Share Posted May 18, 2019 Hi all, The leading edge plywood 'saw tooth' fairing is tricky to do, but can be done. Structure drawing of 1/72 scale resized by 160%, then printed, cut out and used as a template on 0.2 mm thick plastic card. The fairing is test fitted and adjusted where necessary then secured in position using thin CA adhesive. Starting on the top of the front wing spar then once set, rolling the wing over the fairing and applying adhesive at the same time., Mike 2 Link to comment Share on other sites More sharing options...
Kev The Modeller Posted May 19, 2019 Share Posted May 19, 2019 Stunning levels of detail Link to comment Share on other sites More sharing options...
Sandbagger Posted May 20, 2019 Author Share Posted May 20, 2019 Hi all, The lower wing is nearing completion. It's been painted with 'Tamiya' base coat then oils for wood effect. Internal wing bracing with turnbuckles added. Leading edge 'transportation 'bump stops' added. Internal double bracing 'zig-zag' tapes installed (instead of the original 'strip wood' struts, which were removed). I still have the trailing edge wire to install (for attaching the wings linen covering). Also the final weathering will need to be added Mike 3 Link to comment Share on other sites More sharing options...
Sandbagger Posted May 21, 2019 Author Share Posted May 21, 2019 Hi all, The lower wing is finished now, with the trailing edge wire fitted and overall 'dumbing down' carried out using 'Alclad' Light Sheen lacquer mixed with 'Tamiya' Smoke (X19). So now it's on to scratch making the undercarriage fairing and axle assembly (not available as a 3D printed part), Mike 3 Link to comment Share on other sites More sharing options...
Sandbagger Posted May 24, 2019 Author Share Posted May 24, 2019 Hi all, The undercarriage fairing assembly is basically built. Made from 0.8 mm and 1.0 mm thick plastic card, 1.2mm, 0.8 mm and 0.5 mm brass rod and tube. The wheels are hand made by 'Steve Robson' out in Australia. It's still to be finalized and painted etc. I'll also need to make the struts as the kit supplied items fit into the kit fairing and therefore are not long enough to attach to the angled support blocks on each side of the exposed axle box ends, Mike 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted May 27, 2019 Author Share Posted May 27, 2019 Hi all, The basic undercarriage assembly is done now. I still have the undercarriage struts to make and attach before I can fit the assembly to the fuselage frames, Mike 4 Link to comment Share on other sites More sharing options...
Sandbagger Posted May 28, 2019 Author Share Posted May 28, 2019 Hi all, The lower wing is now installed, with some slight adjustments to clear the fuselage side frames and to give adequate access to the single wing strut mounting location. Next is the undercarriage, once I've completed making the undercarriage struts from brass tube and rod, Mike 5 Link to comment Share on other sites More sharing options...
Sandbagger Posted May 28, 2019 Author Share Posted May 28, 2019 Hi all, Front undercarriage struts made using 1.4 mm brass tube and 0.5 mm brass rod, soft soldered for strength, Mike 2 Link to comment Share on other sites More sharing options...
Sandbagger Posted May 29, 2019 Author Share Posted May 29, 2019 Hi all, Just a lick of paint on the struts and cross bracing to attach and the undercarriage is done, Mike 5 Link to comment Share on other sites More sharing options...
John Masters Posted May 29, 2019 Share Posted May 29, 2019 Wowzer! Link to comment Share on other sites More sharing options...
Sandbagger Posted May 29, 2019 Author Share Posted May 29, 2019 Hi all, I'm calling the undercarriage assembly done. The wheels are not permanently fitted yet - they'll be the last thing to be fitted. So now onto the upper wing and struts etc, Mike 3 Link to comment Share on other sites More sharing options...
Putty Animal Posted May 30, 2019 Share Posted May 30, 2019 Beautiful craftsmanship. Your work is incredibly inspiring. Link to comment Share on other sites More sharing options...
Marklo Posted May 30, 2019 Share Posted May 30, 2019 Stunning work. The kind of thing I could never accomplish but aspiring towards it makes me better at the hobby. Link to comment Share on other sites More sharing options...
Sandbagger Posted June 1, 2019 Author Share Posted June 1, 2019 Hi all, The upper wing has been assembled and the plywood 'saw tooth' fairing added, Mike 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 2, 2019 Author Share Posted June 2, 2019 Ok - I need help if there is anyone out there who can explain how the interaction of the aileron control cables works, as I can't find any details of this. This I know: 1. At the forward end of the control column torque tube is a staggered double bell-crank. Twin aileron control cables are attached to each end of the bell-crank and are routed diagonally across each other to exit through the top of the opposite fuselage side. 2. The twin cables enter the underside of the upper wing, close to the inboard wing strut mounting. 3. The cables are routed around twin pulleys fitted to the rear face of the wing front spar. 4. The cables are the routed outboard to another pair of pulleys, fitted on the spar opposite the aileron control horns. My problem is that photographs show what I assume are the left inboard pulleys with the two fuselage cables routed around them. One cable is routed outboard I assume to the aileron pulleys. The other is routed in the opposite direction across the wing centre section to presumably the opposite aileron. However there appears to be a third cable routed horizontally across the top of the twin pulleys and running through a tubular cable housing. This would seem to suggest that the third cable is interconnected between the two ailerons in some way? So basically, how were the aileron cables routed across the upper wing and to and from the cockpit bell-crank??? I'm close to completing the skeletal Fokker D.VII and would want to fudge these cables using guesswork, Mike 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 3, 2019 Author Share Posted June 3, 2019 Hi all, I was shown a diagram of the Fokker DR.1, which had similar controls. The only photos I had were of the left wing pulleys so I assumed the right side pulleys were the same - wrong. The control cables for the aileron top control horns cross in the wing centre section - I assumed they didn't which is why I couldn't figure out their interaction. It all makes sense now. I can move on to finish the build now, Mike Link to comment Share on other sites More sharing options...
Sandbagger Posted June 4, 2019 Author Share Posted June 4, 2019 Hi all, The upper wing is nearly there. I just have the ailerons and their control cables and associated pulleys to add, plus the trailing edge wire. After that it'll be fitting the wing and struts, engine exhaust and propeller, wheels and aileron control cables connected - then that'll be it, Mike 2 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 5, 2019 Author Share Posted June 5, 2019 Hi all, The aileron outer control cable pulleys are fitted. Made from photo-etch set intended for the Sopwith Triplane and modified to suit the Fokker D.VII pulleys. The control lines are loosely routed for now. Next are the inboard pulleys, Mike 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 7, 2019 Author Share Posted June 7, 2019 (edited) Hi all, The inner aileron pulleys and the inner wing control lines are done as well as the trailing edge support wire. Once I've added the control cable turnbuckles it'll be time to tackle fitting of the upper wing, Mike Edited June 7, 2019 by Sandbagger 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 7, 2019 Author Share Posted June 7, 2019 Hi all, The aileron control cable exterior turnbuckles now fitted. Next step - fit the upper wing, Mike 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 9, 2019 Author Share Posted June 9, 2019 Hi all, Nearly there!! Upper wing and wing support struts fitted. Wheels fitted. Twin aileron control cables (upper wing to cockpit) connected with turnbuckles. Propeller finished. I just need to fit the exhaust and propeller and that's it. Mike 3 Link to comment Share on other sites More sharing options...
Brandy Posted June 9, 2019 Share Posted June 9, 2019 Absolutely gorgeous. Fantastic work, and thanks for the info on the aileron control wires, I had no idea they were double wires. Ian Link to comment Share on other sites More sharing options...
Sandbagger Posted June 9, 2019 Author Share Posted June 9, 2019 Yes it seems twin aileron control cables were used on the Fokker DR.1, D.VII and the D.VIII. Probably on other Fokker aircraft as well. I think it was Fokker specific, but I could be wrong, Mike 1 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 9, 2019 Author Share Posted June 9, 2019 Hi all, Last bits fitted. Propeller, exhaust, pilot's foot step and the two rear fuselage rear lift handles. Just the display case and base to complete this build, but that shouldn't take long to sort out, Mike 3 Link to comment Share on other sites More sharing options...
Sandbagger Posted June 10, 2019 Author Share Posted June 10, 2019 Hi all, The model is now complete and posted up in the 'Ready for Inspection' page. Very many thanks for your generous comments and support during this build, Mike Link to comment Share on other sites More sharing options...
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