Danny Fenton Posted October 11, 2014 Author Share Posted October 11, 2014 Sorry David, I had forgotten about those, good ones too I have added the link in Chris's photo Reference "sticky" thread. Cheers Danny Edited By Danny Fenton on 11/10/2014 17:07:17 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 11, 2014 Share Posted October 11, 2014 Thanks all, I managed to miss those albums somehow John Quote Link to comment Share on other sites More sharing options...
A.A. Barry Posted October 12, 2014 Share Posted October 12, 2014 Guys, can someone help me out here,, the wire elevator horn... is there a shop around that still sell these items, I know I could make one, but so much nicer commercially made ????? Thanks Barry Quote Link to comment Share on other sites More sharing options...
Terry Walters Posted October 12, 2014 Share Posted October 12, 2014 Barry - there are stockists but they appear to be all OOS! Somewhere on the threads - one of the Chippites said he had spoken to Flair and some will be made in the near future. I had already ordered some from Balsamart - Blackburn and they expect them in a 'couple of weeks' Apparently Flair would sell direct when the new batch is made. Be aware tho' that they are not silver soldered only soft soldered. Our Guru Danny tested his to 8.5lbs before it gave. In the meantime I made my own and it seems very strong. The considered opinion is that although soft soldered may be OK silver soldered is best. Terry Quote Link to comment Share on other sites More sharing options...
A.A. Barry Posted October 12, 2014 Share Posted October 12, 2014 Ummm Thx Terry, it seams as tho they are a thing of the past, looks like I'll have to make one... Barry Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 12, 2014 Share Posted October 12, 2014 Bit closer up Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted October 12, 2014 Author Share Posted October 12, 2014 The problem is John the shapes of the aileron and flap are different so it is not just a case of cutting the shroud. If you get a shot from underneath you will see that the wing trailing edge would need relieving considerably to accomodate the larger flaps. I think I will just accept it as it is and move on. I have the parts for the Jerry Bates Chipmunk to build at 1/4 scale, one day. Perhaps I can sort out the problems with that one 1/4 scale version next year then chaps Cheers Danny Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 12, 2014 Share Posted October 12, 2014 Any wiggle room to add to the trailing edge where aileron fits ? or am I talking rubbish John Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted October 13, 2014 Author Share Posted October 13, 2014 Hi John, revisiting this as a few seem to want to try and address this error, there is some wriggle room. We may be able to leave a little more meat on the flap leading edge and cut the shroud back slightly. I propose I have a play when i come to the ailerons/flaps. Whatever we do the wings will be basically the same. But please we may be losing sight of what we are trying to achieve. This wont be an F4C model, the plan is not good enough for that. Most people wanted a model that will be good, with some nice detail. This will be that don't worry about the inaccuracies (Hark at me, I am losing sleep over them ) If you look closely the rib count in the wings are wrong, as are the number of ribs in the aileron. So to the elevators. So please don't turn this into a full blown scale model, there lies madness. If you want to have a pop at F4C then that's great, I do to, but cut your teeth on this one first We want 20 flying Chipmunks, not 20 unfinished projects...... Okay sorry rant over Cheers Danny Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted October 13, 2014 Author Share Posted October 13, 2014 These are from Trevor's link and are excellent. Cheers Danny Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted October 13, 2014 Share Posted October 13, 2014 For what it's worth I agree with Danny's last post here entirely. Any scale model is a compromise between on the one hand - what can be built, what will actually fly at our scale and just how much trouble we want to go to - but on the other hand we want a perfect reproduction of the full size. It's a shame, in a way, that I'm going to lag some way behind on this one (due to circumstances, rather than intent). If you could see me building the wing you'd see that I wouldn't loose a moments sleep about the step in the aileron/flap shroud. To change this would either be a bit of a fudge, or would require wider flaps or narrower ailerons and a step in the T/E. Too much to change IMHO. To my mind, we're building the Bryant Chipmunk, and that doesn't have the step... Quote Link to comment Share on other sites More sharing options...
Martyn K Posted October 13, 2014 Share Posted October 13, 2014 +1 for common sense, I was also starting to get worried about this.. Danny's comments above have now consigned my model to stand off scale plus detail... - cockpit detail etc. I was worried how I was going to make a functional elevator tab and if I could get a micro servo built into the tailplane.. Quote Link to comment Share on other sites More sharing options...
Nigel Day Posted October 13, 2014 Share Posted October 13, 2014 Thanks Danny, thanks Chris. You've said this at various points over the past 6 months but it's easy to forget it when we get down to individual build sections. It's a good idea to remember the original aim and the option for people to do as much or as little detail as they want, every now and again. I remember the words of a previous boss (no, not SWMBO), "When you're up to your (backside) in alligators, it's easy to forget that you came in to drain the swamp" Quote Link to comment Share on other sites More sharing options...
David P Williams Posted October 13, 2014 Share Posted October 13, 2014 I'm still wrestling with the SLEC/Apache Chipmunk kit build. It's so far from scale in so many areas that I'm now just using it as a practice test bed for scale building and finishing techniques, things I haven't done before like stitching and rib tapes and rivets etc. I was originally annoyed that I wouldn't have the time to join in this mass build, but given the discrepancies you're all finding with the DB plans, I'm actually pleased that I didn't park the SLEC one and switch to this. I will build as scale a Chipmunk as I can some time in the future as it's an aircraft that is very dear to me but, as ever, other projects are vying for attention. I'll continue to follow all these builds with great interest (and admiration). Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 13, 2014 Share Posted October 13, 2014 Well the plan hasn't confused me yet, but those posts have I don't recall faulting the plan, I just responded to other posts John Quote Link to comment Share on other sites More sharing options...
Andy Muckley Posted October 16, 2014 Share Posted October 16, 2014 Hi all just a quick post about the cockpit parts some of us ordered from Dylan at lasercraft , do we know when we will get them ? Not that i need them yet only just thinking about the wings for the weekend, cheer's all Quote Link to comment Share on other sites More sharing options...
Terry Walters Posted October 16, 2014 Share Posted October 16, 2014 Andy have look here. Dylan is poorly at the moment. Terry Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 19, 2014 Share Posted October 19, 2014 I am after a few thoughts..opinions on a few things First the u/c, it worries me a bit, our grass field will find a weakness even with silky smooth landings like mine I feel it's better to add a little strength now, than have to repair later and add even more weight. How ? I don't know yet till I start it. Second, how much flap movement will I need on this ? Third, and I might be talking rubbish here but have those who bought a ready made elevator horn (joiner) checked that it won't clash with the rudder one (is it long enough) John Quote Link to comment Share on other sites More sharing options...
Nev Posted October 19, 2014 Share Posted October 19, 2014 Hi John, I'm a it worried about the u/c too. I keep thinking if I bend the leg, the wing structure isn't going to be strong enough to straighten it in situ, so it will have to be cut out straightend and put back again ! But having seen Danny's build and realise how light the structure is I'm not sure beefing it up is a good idea, I'm sill trying to decide. Quote Link to comment Share on other sites More sharing options...
Nev Posted October 19, 2014 Share Posted October 19, 2014 If I do beef it up and I'm no expert, what I thought is. Go up a wire size to 6 swag, assuming I can bend it, I'm not using oleo's. Use 1/2 x 1/2 bearers but try and cut a channel along one edge so the u/c wire occupies the same space. The tin clips will be fine to hold it in place I think the inboard rib and ply sandwich is strong enough but do the same for the outer rib back to the main spar. And that's about it, if I do it and as I say I'm still in too minds. Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted October 19, 2014 Share Posted October 19, 2014 I would suggest, Nev, that the wire size is chosen to give a spring action as the wire twists. Going up a wire size may make it rigid and just transfer landing shocks to the far end of the wire? Quote Link to comment Share on other sites More sharing options...
Nev Posted October 19, 2014 Share Posted October 19, 2014 I agree Chris, which is why I'm in two minds. When I first looked at the plan I thought, stronger wire. I have been known to bend 8 gauge, although it was more of a crash than a landing. The more I see of the builds goin on though, the more I think, leave it alone and stay with the plan. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 19, 2014 Share Posted October 19, 2014 Happy enough with the wire gauge it's the leading edge bit that's bugging me, I may add some triangular or light glass bandage where rib joins John Quote Link to comment Share on other sites More sharing options...
David P Williams Posted October 20, 2014 Share Posted October 20, 2014 John - I'm pretty sure the flap settings on the full size Chipmunk are 30deg and 60deg. The 30deg setting is used for take off as well as landing. Quote Link to comment Share on other sites More sharing options...
Silver Wolf Posted October 20, 2014 Share Posted October 20, 2014 Gent's Just happen to have the pilots notes and according to the pilot's notes the flaps have three positions. Up (fully forward), 15 degrees (mid) and 30 degrees(fully back). It also appears that the use of the flaps was not mandatory, "without the use of flaps, the approach is long and flat and very little power, if any, is required." SW Quote Link to comment Share on other sites More sharing options...
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