jeff2wings Posted January 8, 2014 Share Posted January 8, 2014 This is a build of the original 52” span Barnstormer that Bodo designed back in ’69-’70 for single channel operation (he did a column under the name of button man at the time) needless to say I will have a few more functions than that ,might even go “full house” with it. This will not be a full piece by piece blog as others are already doing so ,but will concentrate on the mods to make it a bit more up to date ,mostly dealing with the tail surfaces and construction of the fuselage and if I add ailerons ,the wing .So ,let’s get to it. sides are cut from 3/32 ,a left and right of course 3/32 sheet doubler added cross grain sides shortened for larger rudder Edited By jeff2wings on 08/01/2014 21:31:44 Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 8, 2014 Share Posted January 8, 2014 good so far. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 8, 2014 Author Share Posted January 8, 2014 The good old days it must be ,it's in black&white Quote Link to comment Share on other sites More sharing options...
Nigel Day Posted January 9, 2014 Share Posted January 9, 2014 Thanks in advance Jeff. I'll be watching to pick up tips. Quote Link to comment Share on other sites More sharing options...
kc Posted January 9, 2014 Share Posted January 9, 2014 Jeff, I am wondering whether you have shortened the fuselage enough to increase the rudder to a useful size. Maybe relocate the vertical a bit? I mention this because it's been said before that Boddo didnt have a large enough rudder on other designs anyway. One of the problems with building this size of Barnstormer is making the dural cabane struts which presumably are smaller than the 63 inch ( 63 inch are avail from DB Sport )Unless you are making a piano wire cabane where do you get the 3/32 dural strip or do you have a source for ready bent struts?Edited By kc on 09/01/2014 12:01:03 Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 9, 2014 Author Share Posted January 9, 2014 KC , the fully extended rudder will be around 30% of the fin area and should be more than sufficient for a model this size , although saying that I have added an extra 1/2" to the rudder and elevators on the 63 & 72 . Not much done today ,made F3 & F4 and strut mounting blocks, and struts from 5/8 x1/8 ali gluing in progress Edited By jeff2wings on 09/01/2014 22:18:28 Quote Link to comment Share on other sites More sharing options...
kc Posted January 10, 2014 Share Posted January 10, 2014 Well Jeff the cabane strut looks just right. I think lots of people would be interested to know exactly how you make them accurately with both sides equal. It looks as though you marked the drawing with diagonal lines presumably you measured this distance.. Could you explain more......did you make jig or just bend them in the vice? Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 12, 2014 Author Share Posted January 12, 2014 Well not much of interest at the mo ,fuselage going together same as the 63, tail surfaces made but I have an idea with regards to the wing , I was thinking of adding ailerons ,but just for interest I will build the standard wing /wing section and then a wing with ailerons and a symmetrical section , I think it might be interesting to compare the general handling and aerobatic performance of the two . This will require the wing struts to be removable as they will need to be different lengths for the differing AoI , I will need to make a second set so I will show how to form them for others interest Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 12, 2014 Share Posted January 12, 2014 looking lovely at the moment young man. Quote Link to comment Share on other sites More sharing options...
Nigel Day Posted January 13, 2014 Share Posted January 13, 2014 Thanks Jeff, very helpful. Quote Link to comment Share on other sites More sharing options...
jolliffee Posted January 15, 2014 Share Posted January 15, 2014 Hi Jeff, Is electric power, just wondering Quote Link to comment Share on other sites More sharing options...
kc Posted January 16, 2014 Share Posted January 16, 2014 I will be interested to see how you bend the struts accurately.It seems to me you could make do with only 1 set of struts for different wing incidence / dihedral by increasing the packing under the wing i.e. gluing a thin sliver of ply into the wing at the wing bolt area on one wing. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 18, 2014 Author Share Posted January 18, 2014 Is it electr*c ! cough ,splutter ! the very idea .Seriously though it would make a good e.p. model at this size but I will be using a OS Max 15 ,Enya 19 ,possibly a OS 20 FS or even a AM 25 !? with the rear sheeting added time to start on the front end, starting with the u/c plate in 1/8 ply that is doubled up with a full width piece F2 going in ,I've added some 1/8 sheet to butt it up to and rest the tank floor on this time I've gone for snakes to make the bits at the back flap Wrap the snake outers with masking tape to aide gluing opps ! forgot that one ,still don't think it's going any where Edited By jeff2wings on 18/01/2014 18:58:42 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted January 18, 2014 Share Posted January 18, 2014 tape a bit on now Jeff they'll not notice like the doubled u/c ply, do it myself Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 18, 2014 Author Share Posted January 18, 2014 With the lack of interest in this thread I don't think too many people will know about it ! LOL Quote Link to comment Share on other sites More sharing options...
Martian Posted January 18, 2014 Share Posted January 18, 2014 it was meant to be like that looking good Jeff Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 18, 2014 Share Posted January 18, 2014 well done sir, looking great so far. Quote Link to comment Share on other sites More sharing options...
Glenn Stratton Posted January 18, 2014 Share Posted January 18, 2014 I'm watching & enjoying your post also Jeff, so please keep on blogging away! Looking forward to seeing the finished model. Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted January 18, 2014 Share Posted January 18, 2014 I like the three wing idea - it will be interesting to see how they compare. Nice work Jeff. BEB Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted January 18, 2014 Share Posted January 18, 2014 Still following along Jeff, lovely build, I am enjoying watching Cheers Danny Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted January 18, 2014 Share Posted January 18, 2014 This is a nice handy size for the Barnstormer, can't see you going far wrong with it. I look forward to seeing the end result. Good one Jeff. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 19, 2014 Author Share Posted January 19, 2014 Thanks for the words of encouragement chaps ,truth is I’m not very computer friendly and I find it hard going doing a detailed build blog as time spent at this infernal machine is (valuable ) time lost in the workshop . Anyway , last bit today found some 5/8 block so glued that in with a slot at the back to let the oil out , and if I use the AM 25 there will be a fair bit of that . rear deck found some 1/16 x 1/4 hardwood strip for the stringers Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted January 19, 2014 Share Posted January 19, 2014 nice job. i had to raid the scrap bin for all the bits for mine. Quote Link to comment Share on other sites More sharing options...
Nigel Day Posted January 19, 2014 Share Posted January 19, 2014 Thanks for the info and for taking the time Jeff. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted January 19, 2014 Author Share Posted January 19, 2014 I expect like me Tony ,you have a box of useful scrap bits ,although these days I limit my time looking for that bit I can use or you can end up wasting too much time So ,I think I should detail how I go about the rear decking ,you can see I made F5 from 3 mm liteply and added some 1/4 in front of the tail plane then pinned the 1/8 spine in place ,then added the blank formers ( from the famous scrap box ) and glued in place.Then cut to shape buy eye so they are under size aprox 1/8" then it's a case of marking the run of the stringers and cutting the slots, it's a bit easier this way than trying to cut them using the ones shown on the drawings due to" local variations " I'm adding the dorsal fairing this time using a length of molded L/E I found 1/8 "under side sheet added and F1 nose block part shaped Quote Link to comment Share on other sites More sharing options...
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