Tim Ballinger Posted March 5, 2017 Author Share Posted March 5, 2017 Then again having just looked at skywriters stringer density that might make tha bit too much of a challenge. Tim Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 5, 2017 Author Share Posted March 5, 2017 So with A Lucas dummy tail and a lot of dust and shavings... And the I couldn't resist a look see. Quite pleased. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted March 5, 2017 Share Posted March 5, 2017 Looks great, you're right to be pleased, i see there's a curve on the stringers ? if so my cutting's not as bad as i thought John Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted March 5, 2017 Share Posted March 5, 2017 Wow, this starts to look really good. Do not forget to replace the dummy before covering. Shrink film excerts enough force when shrinking to break off your fairings. Lucas There may not be so much mass in this build, but the three of use achieve its goal nicely... Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 5, 2017 Author Share Posted March 5, 2017 John , what dimension are you looking at. Certainly there is a curve along each stringer along the length of the fus. Laterally, the only one which is actually curved Is the lower stringer on the starboard side. I fat fingered the last attachment on F9 and did not notice until it was set. The rest are pretty straight laterally when you put a ruler along but she definitely has a curve along the back. Must look at some others to see if I am unique. I need to think about the wings now so will have to go back and reread all your wing building logs to see what tips I can pick up. Am I right that you have changed the aileron design ? Tim Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted March 5, 2017 Share Posted March 5, 2017 Yes along the length, i was misreading my plan and thought i'd cut mine wrong. Yes i've gone for inset ailerons because i cut em myself, and thought i'd be different. John Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 5, 2017 Author Share Posted March 5, 2017 Thanks Lucas. Dummy tail back in already. Now talking about covering. I have a few questions. Firstly the glass and epoxy covering on the front fus of the original. Was that so that detailing was easier to apply (rivets etc) or is there a durability or strength factor that I am missing? Secondly , solarfilm was the only shrink game in town when I last covered a model(other than patching attic damage to my impala wings that is and even that was with 40yr old solarfilm), now there seems to be a plethora of types . I know I may get several different answers and that is fine but what do you all recommend? Tim Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted March 5, 2017 Share Posted March 5, 2017 Hobby King film..good price, very strong, lots of colours. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted March 5, 2017 Share Posted March 5, 2017 Glassing would add strength, Lindsay added panel lines n rivets as you've said, maybe it's easier around the cabane area also ? John Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted March 6, 2017 Share Posted March 6, 2017 I have used Oracover and Hobby King. Hobby King is both easier to apply and more durable. Do not use anything else anymore. Glassing add strenght but you do not need it. 6mm balsa is enough. I am going to glass but that is only because I want to try a new technique (have never glassed a fuse before) and want to start doing panel lines, nails etc. If you just want to fly cover the nose with film and you are good to go much faster (and cheaper, since glass means hi-build primer and paint). Regards, Lucas Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted March 6, 2017 Share Posted March 6, 2017 Hi Tim, If you don't really need full strength reinforcement for the front fuselage as Lucas wrote, you can use hard floor varnish (Ronseal Diamond) instead of epoxy for your glass cloth. It is about 35% lighter than epoxy and a lot easier to work with as it is water-based. When your glassing application is dry, you can fill the cloth wave with a few thin layers of varnish - with sanding in between - and you only need a little of primer on top for a smooth finish. Great job you're doing, by the way. Cheers Chris Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 6, 2017 Author Share Posted March 6, 2017 Thanks all, HK film seems to get your votes for the shrink side. Still undecided about the glass cloth front. I remember covering with nylon and dope and it was right pain . Chris's tip of using water based varnish sounds good if I go that route but it only seems worthwhile if I want to spend time detailing. Can't even decide on a colour scheme ATM. Tim Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 6, 2017 Author Share Posted March 6, 2017 Couldn't decide on anything but the sun came out so I went for a fly. Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 8, 2017 Author Share Posted March 8, 2017 Started on the lower wings. I think aesthetically since the wing is a flat bottom I prefer a flat bottom to the tips as well. Seems easy enough to take all the chamfer out on the top side. I plan to shorten the aileron by 6mm so as to provide a good te join.. Tim Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted March 8, 2017 Share Posted March 8, 2017 tim, if you have not yet glued the tip you may consider fixing the end near the TE like this: The triangular piece has a large glue area and is much stronger this way than just butt jointed to the TE. I made it from 3mm scrap balsa. Cheers, Lucas Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 8, 2017 Author Share Posted March 8, 2017 Like minds there Lucas . That's pretty much what I had in mind, plus a 6 mm the other side of the rib too. I think I shall make the actual tip thicker too by adding some strip. Tim Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 9, 2017 Author Share Posted March 9, 2017 Here is how I eventually did the tip. Perhaps 6mm wood was overkill but it feels really solid (and very flat underneath). Now for the starboard tip. Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 12, 2017 Author Share Posted March 12, 2017 Lower wing pretty complete save shaping LE , sanding tips and general sanding. Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 12, 2017 Author Share Posted March 12, 2017 Wing bolts in place. Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 12, 2017 Author Share Posted March 12, 2017 And before a glass of wine, another bit of bench flying ! Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 12, 2017 Share Posted March 12, 2017 Very nice Tim.... D.D. Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 12, 2017 Author Share Posted March 12, 2017 Thank you Dwain, always good to get encouragement. Tim Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted March 12, 2017 Share Posted March 12, 2017 Leading the pack now Tim!. What is the hole in the center for? just for getting the servo wires out? Have you already decided about the colour scheme? Cheers, Lucas Quote Link to comment Share on other sites More sharing options...
Martin Dance 1 Posted March 12, 2017 Share Posted March 12, 2017 That's looking very neat Tim. As for colour scheme I had pretty well settled on orange and white, slight snag other than Oracover and solarfilm white is not be had in Toughlon or Easycoat. so much for the thought that people aren't building! My progress has slowed, sanded the tail group and hinged elevators and rudder and sorted out the closed loop for the rudder and the tube for the elevator, all a bit tight at the rear! Weather is improving so the allotment gets priority next week. Quote Link to comment Share on other sites More sharing options...
Tim Ballinger Posted March 12, 2017 Author Share Posted March 12, 2017 Old habits I think Lucas; it always used to be a hole for the aileron servo which then used pushrods and bell cranks to drive the ailerons. So now rather than just a hole i still leave a box. Might sheet it might not. Just enjoying myself really. I have looked at a few biplane colour schemes and I am leaning to a version of the iconic Great Lakes two tone fan across the wings if you know what i mean. Probably red and blue. You not a fan of the HK film then Martin? Tim Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.