Tony Bennett Posted December 8, 2016 Share Posted December 8, 2016 Thought i would start a new project to while away the time between paint coats on the Ensign. So i started drawing up the plans for this little known aircraft. they only made one and it was a side by side seating biplane trainer. So i started the fuselage last night. I still need to build the centre section out of ply as it will be taking all the loads from the wings and u/c. then i will join all the parts together, and sheet the sides with 3mm Depron. I will be adding Depron stringers on top of the skin to simulate the full size when covered. Tony B Quote Link to comment Share on other sites More sharing options...
Martyn K Posted December 9, 2016 Share Posted December 9, 2016 How big Tony? Martyn Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 9, 2016 Author Share Posted December 9, 2016 80" span sir. Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 10, 2016 Author Share Posted December 10, 2016 we plod on slowly. centre section under construction. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 10, 2016 Author Share Posted December 10, 2016 looking for pictures of the Salmson AC.7 7-cylinder air cooled radial, 95 hp. can't find anything on the web. Quote Link to comment Share on other sites More sharing options...
cymaz Posted December 10, 2016 Share Posted December 10, 2016 What about here ?? These people might help? Edited By cymaz on 10/12/2016 22:15:53 Quote Link to comment Share on other sites More sharing options...
Caveman Posted December 10, 2016 Share Posted December 10, 2016 Tony, found this photo of G-AALP showing the AC.7 engine, but not very good definition. GDB Quote Link to comment Share on other sites More sharing options...
Caveman Posted December 10, 2016 Share Posted December 10, 2016 Tony, also found this pdf about Slamson engines. The main text is about the AD.9, but towards the end mentions the AC.5, AC.7 and AC.9 and suggests that the AC types have interchangeable cylinders, so, it's probable that the appearance of these engines is very similar save the number of cylinders. If you can find a photo of any of these engines then you should have a good idea what they look like. GDB Quote Link to comment Share on other sites More sharing options...
reg shaw Posted December 10, 2016 Share Posted December 10, 2016 Thats a nice looking aeroplane, is that 1/4 scale at 80"?? Depron sheeted or fabric covered depron? Ian. Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 11, 2016 Author Share Posted December 11, 2016 1/4 scale sir. depron sheet with depron stringers on the outside then covered with fabric. Thanks for all the links to the engine. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 11, 2016 Author Share Posted December 11, 2016 The wings will be interesting as it is all open structure, nothing like my normal method of building wings in depron. plus working rigging. eeeeeeeeeeeeep. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 17, 2016 Author Share Posted December 17, 2016 Still doing little bits to this between jobs on the Ensign. Making up the dummy engine at the moment. Fiddly but fun to do. Tony B Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted December 17, 2016 Share Posted December 17, 2016 Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted December 18, 2016 Share Posted December 18, 2016 I'm speechless, but should know better by now! I got it in my head a while ago that it should be possible to build a conventional open structure wing with Depron if you pay suitable attention to the structure, particularly the composite balsa approach with the spars and leading/trailing edges. You can even get away with tissue/nylon/silk and dope if you prime the Depron first with something suitable to protect it from solvent attack, or so it appears from the Chipmunk tailplane and fin/rudder. I need tp make a wing and try that idea out. Perhaps you will do that anyway?! Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 18, 2016 Author Share Posted December 18, 2016 my plan is to have balsa spars with depron ribs. then balsa leading and trailing edges. cover with tissue and polyc. aluminium tube wing joiners and balsa root ribs. the fittings for the working rigging will be fun, i might have to revisit one of Mr Hoopers biplane builds to steal a few ideas. but it will be fun trying. Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted December 18, 2016 Share Posted December 18, 2016 Sounds like a good 'un. Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 18, 2016 Author Share Posted December 18, 2016 still working on the engine at the moment between coats of paint on the ensign. i need to spray it all black next and then pick out the sliver parts. then i can add the spark plugs and exhaust collector ring. we plod on Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 20, 2016 Author Share Posted December 20, 2016 plodding on with the dummy engine. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 26, 2017 Author Share Posted January 26, 2017 been practicing with the 3D design for the last 2 weeks and felt i was ready to print out the instrument panel. Quote Link to comment Share on other sites More sharing options...
cymaz Posted January 26, 2017 Share Posted January 26, 2017 Cool...somewhere to put maps and sarnies Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 26, 2017 Author Share Posted January 26, 2017 the description in flight magazine mentions the two cubby holes for gloves and maps. so there they are. as there are no pictures anywhere that i can find of the instrument panel, this is all conjecture as to how it was laid out. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 27, 2017 Author Share Posted January 27, 2017 well the printed part will go in here on a depron backing plate. seats and controls next i think. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 31, 2017 Author Share Posted January 31, 2017 Fin, Rudder and tailplane under construction. The fin and rudder are 90% Depron with Balsa leading edges and hinge posts. The tailplane has Balsa spars, leading and trailing edges with Depron ribs and cap strips. I 3D printed a control horn and built it into the rudder and will be using a snake to control it when completed. you have been watching. Tony B Edited By Tony Bennett on 31/01/2017 17:08:53 Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted February 4, 2017 Author Share Posted February 4, 2017 where we are at the moment. Tailplane and elevator built fin and rudder built. top of the fuselage sheeted and stringered. we plod on. Tony B Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted February 5, 2017 Author Share Posted February 5, 2017 thought i would play with the 3D printer and start making a new 7 cylinder radial for the model. first cylinder and head printed out, 6 more to go and then the crank case to design. Thank you for watching Tony B. Quote Link to comment Share on other sites More sharing options...
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