Guernsey Posted October 19, 2014 Share Posted October 19, 2014 OK Sloper, now that we have all commented on your good news, how much progress have you made on the aircraft since you told us your good news??? Full details with photos of the progress and you with a big smile required asap. Pushy Alan. 3 Link to comment Share on other sites More sharing options...
Garry Morgan Posted October 20, 2014 Share Posted October 20, 2014 Great news, scare the crap out of you when they tell news like that. Enjoy life. Link to comment Share on other sites More sharing options...
Sloper Posted October 20, 2014 Author Share Posted October 20, 2014 Finished a chev engine rebuild. Extending the decking and a new carport. Painting the sons Gemini. Dusted the Couger. regards bruce Link to comment Share on other sites More sharing options...
Sloper Posted October 20, 2014 Author Share Posted October 20, 2014 Oh and l forgot. l have to convert my GFPT to RPL regards Bruce Link to comment Share on other sites More sharing options...
bexrbetter Posted October 20, 2014 Share Posted October 20, 2014 Dusted the Couger. Awesome! Won't be long now then! Link to comment Share on other sites More sharing options...
eightyknots Posted October 20, 2014 Share Posted October 20, 2014 Finished a chev engine rebuild.Extending the decking and a new carport. Painting the sons Gemini. Dusted the Couger. regards bruce I hope the Cougar will be "done and dusted" soon . Link to comment Share on other sites More sharing options...
Jeff Wallis Posted January 13, 2015 Share Posted January 13, 2015 Would like some more progressive. Pics please Link to comment Share on other sites More sharing options...
Sloper Posted May 31, 2015 Author Share Posted May 31, 2015 Goodaye all Broke my golden rule today. One project at a time. Purchased a Genuine LJ GTR Torana, its in bits but the bodywork is done. New double carport built, l will be shuffling a few cars around to put the Couger fuselage in the carport while l get a start on the wings. The Couger take's priority. l will collect a few missing bits on the GTR in the meantime. Bonnet, boot lid and front seats, would be interested in any bits and pieces. regards Bruce 1 Link to comment Share on other sites More sharing options...
DGL Fox Posted May 31, 2015 Share Posted May 31, 2015 Here you go Bruce...saw this on Gumtree...the cluster set look a bit old worn but if you get them cheap enough you might may able to restore them..I see he has some other things for a Torana as well...good luck with it mate.. http://www.gumtree.com.au/s-ad/marsden/other-automotive/lc-lj-torana-gtr-xu1-cluster-290-ono-/1079132831 David Link to comment Share on other sites More sharing options...
bexrbetter Posted May 31, 2015 Share Posted May 31, 2015 Purchased a Genuine LJ GTR Torana, its in bits but the bodywork is done. Wow rare car, of 1400 made there is only 1800 left! True story, courtesy RACQ. the Couger fuselage in the carport while l get a start on the wings. May I make a suggestion for your wings from my own experience, be back later today, I'll draw it up in 3D for you. . Link to comment Share on other sites More sharing options...
bexrbetter Posted May 31, 2015 Share Posted May 31, 2015 After I did my wing spars, in hindsight I believe I could have made my life a lot easier, more accurate and added strength to the assembly with just a simple change. I found lining up of the angle on the spar sheet a bit of a pain and I wasn't completely satisfied with the result and believe that the simple addition of a little extra width with 90 degree folds is a very suitable solution and easy to accomplish - do need to get to a sheetmetal shop to do the folds for you though. The result will be a much straighter spar and better looking wing as well as an increase in strength, not to mention a much easier process as the new folds serve as an alignment jig. I hope the pictures will be enough explanation, the additional material is red in colour ... Link to comment Share on other sites More sharing options...
graham brown Posted May 31, 2015 Share Posted May 31, 2015 That's interesting. Which way was it not straight? The only thing I noticed doing the spar was that the rivets expanded one side of the angle and not the other which gave it a slight sweep back/forward. Only about 10mm though. Link to comment Share on other sites More sharing options...
bexrbetter Posted May 31, 2015 Share Posted May 31, 2015 That's interesting. Which way was it not straight? Not straight enough for my dead eye and just a lot of work to get it straight - relative to if you had that folded edge there acting as a jig. It's just a thought/suggestion, and the way that I would do it if ever again. Please be aware that is in now way a comment on the current design or build method, merely an alternative technique. Here's another method for doing all those holes literally anywhere on the build including curved surfaces, go buy some perforated aluminium sheet with 3mm holes and cut some strips off it (if you can't actually buy an offcut), drill a hole in each end relative to your workpiece, pop a rivet/cleco in each end and drill out all your holes at your selected intervals (I use a nikko pen to mark my holes first). Remove and clean up, rivet away. No measuring, line scribing or centre punching required, super even spacings and super straight is the result. Just a photoshop to give you the idea, of course the idea here is bent over a curved surface .... 1 1 Link to comment Share on other sites More sharing options...
pylon500 Posted May 31, 2015 Share Posted May 31, 2015 Hey Bex, Not sure how thick the web sheets are (0.032"?), but folding a sheet that long will probably bow anyway, unless you can get it done in a very heavy/strong, vertical press brake. The bowing in the normal construction (without flanges) is a function of setting the rivets. In the act of riveting, you always try to have the rivet head on the thinner side (if materials of uneven thickness), and try to get the rivets 'down' as quickly as possible (bigger hammer, heavier gun), this will minimise stretching of the thinner material which can cause bowing. Also, when setting rivets, avoid starting at one end and riveting along in a line, you'll end up with a banana !! Along something like the spar, I would set a rivet about every foot or so, then go back and put one in between each, then probably do it again before going along and filling all other rivets. The important thing is to be able to set each rivet with as close to the same pressure/force as all others. The best sign of this is all the tails being identical. The Metal Basher. 1 1 Link to comment Share on other sites More sharing options...
bexrbetter Posted May 31, 2015 Share Posted May 31, 2015 Hey Bex,Not sure how thick the web sheets are (0.032"?), but folding a sheet that long will probably bow anyway, unless you can get it done in a very heavy/strong, vertical press brake. . Yuh, as I mentioned, get to a sheetmetal shop. Yes, 0.8mm and just over a 2.5M length fold. Link to comment Share on other sites More sharing options...
graham brown Posted May 31, 2015 Share Posted May 31, 2015 Here's another method for doing all those holes literally anywhere on the build including curved surfaces, go buy some perforated aluminium sheet with 3mm holes and cut some strips off it (if you can't actually buy an offcut), drill a hole in each end relative to your workpiece, pop a rivet/cleco in each end and drill out all your holes at your selected intervals (I use a nikko pen to mark my holes first). Remove and clean up, rivet away. Yes I made lots of these type of jigs too. Mine are mostly straight. I didn't make a curved one, good idea! Link to comment Share on other sites More sharing options...
bexrbetter Posted June 1, 2015 Share Posted June 1, 2015 Yes I made lots of these type of jigs too. Mine are mostly straight. I didn't make a curved one, good idea! Mine aren't curved, merely some 1 meter long by 50mm wide (roughly) by 2mm thick, 40% perforated aluminium offcuts that are flexible enough to be used in most situations. Great thing about the typical perforated pattern is it allows you to do perfect double rows and other offset or fancy patterns as required ... 3 2 Link to comment Share on other sites More sharing options...
kgwilson Posted June 1, 2015 Share Posted June 1, 2015 The spar did end up with a curve in it when I made mine as per Garrys plan but it wasn't too bad. The solid rivets do stretch the material which is why you don't just start from one end & install them in line. As Garry said as soon as you fold the D-box over the spar and pull the whole assembly tight with ropes or in my case with ratchet straps (1 on each rib) it straightens out so well that I could not detect any deviation sighting straight down the spar. Worked for me. Link to comment Share on other sites More sharing options...
Garry Morgan Posted June 2, 2015 Share Posted June 2, 2015 Thats Right Kev. It only makes work for your self for something doesn't matter. A straight edge wont work as the riveting will have some stretch in it and you cant avoid some bending. when the D box sheet it pulled on it is all removed ???????????? If holes are not straight so what, it wont effect anything. If building an aircraft was so important and require so much skill most would crash. Link to comment Share on other sites More sharing options...
bexrbetter Posted June 2, 2015 Share Posted June 2, 2015 The spar did end up with a curve in it when I made mine as per Garrys plan but it wasn't too bad. I am not talking about the curve in that plane, which is as suggested, insignificant, I am referring to the upper and lower wing surfaces as in standing at the wing tip and looking along the surface towards the wing root, the "waviness" that's why the folds I suggested above, to obtain a straighter edge/flatter surface ... 1 Link to comment Share on other sites More sharing options...
graham brown Posted June 2, 2015 Share Posted June 2, 2015 I found the ribs sticking up above the spar needed filing off. Sikaflex in the ones that were too low. Jigs/spaces were needed where the ribs were going to go to get the spar to have the right height at that point. A folded web would make it easier. Link to comment Share on other sites More sharing options...
bexrbetter Posted October 10, 2019 Share Posted October 10, 2019 Sloper, what happened to this project Mate? Link to comment Share on other sites More sharing options...
Raytol Posted October 23, 2019 Share Posted October 23, 2019 Is Sloper ( Mark) still on his Cougar project? Link to comment Share on other sites More sharing options...
turboplanner Posted October 23, 2019 Share Posted October 23, 2019 See post #161, and a few following posts. Unfortunately cancer can be very unpredictable, and one of the byproducts can be that in some stages you have to forget daily affairs and focus on keeping on. 1 Link to comment Share on other sites More sharing options...
Raytol Posted October 23, 2019 Share Posted October 23, 2019 Thanks Turbo, Anyone know how he is getting on? Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now