Peter Miller Posted August 8, 2023 Author Share Posted August 8, 2023 I am glad that you liked it. I recently bought(!!!!???) the Sarik kit and converted it to electric. Hopefully that will be in RCM&E. The weather is diabolical. I have a glider kit(!!!) ready to test fly. If only the rain would lay off for a few days they could harvest the field right in front of my house and I could step out side in the early morning and test fly it. Picture shot from my bedroom window at about 10pm. last year Quote Link to comment Share on other sites More sharing options...
kc Posted August 8, 2023 Share Posted August 8, 2023 The weather in Essex is forecast to be dry with only 5 or 6 MPH winds tomorrow and Thursday. Much the same for Suffolk too --- so a good flying chance for those who can fly midweek........... I must charge some batteries up today...... Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 8, 2023 Author Share Posted August 8, 2023 Some us are thinking of tomorrow morning about 11 am 1 Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted September 29, 2023 Share Posted September 29, 2023 Peter, did you use a 3s or 4s lipo with the 3541-1070 4Max motor and what prop size did you settle on ? I am a very slow builder (getting the time to do it rather than actually building slowly) I have Oodalally on the building board at the moment and have cut all the parts myself from your original plan from RCME. I have always intended to go electric for this model and am grateful for the electric update and confirmation that the 3541/1070 motor provides good performance, as in previous pages of this thread some of the builders have used a wide variety of motors, some of them being very powerful and possibly an overkill. I will try to post some pics of my build but cant guarantee I will find the time. Dave Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted September 29, 2023 Author Share Posted September 29, 2023 Hi Dave I am using the 4-Max recommended set up. 3547 1070. 12X 6 high performance wood and 3300 3S battery. It works well. Have fun, it is great on electric power. probably slight;y better then the i.c set up but it is a looooong time since I flew the i.c version Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted September 29, 2023 Share Posted September 29, 2023 Cheers Peter , it will be a while until I fly her but I do enjoy the building, even if it takes me a lot longer than most people. 😀 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted September 30, 2023 Author Share Posted September 30, 2023 9 hours ago, LHR Dave said: Cheers Peter , it will be a while until I fly her but I do enjoy the building, even if it takes me a lot longer than most people. 😀 I like builders!!! As regards to taking longer I would also give you my favourite quotation from the late great Bill Winter's Purple Plan: "So long as you glue one piece of wood to your model every day it will get finished" I build fast because I have been doing it for a very, very long time and I certainly do not achieve the degree of perfection that others do. At least my models fly well...usually! Quote Link to comment Share on other sites More sharing options...
Petrogli Posted October 9, 2023 Share Posted October 9, 2023 Hi all, I finally got my Oodalally finished and ready for the maiden flight on the balmy October heatwave over the weekend. One of my club mates did the honours and commented that it flies like its on rails. I've since had several successful flights and have to say that it flies beautifully and is the perfect follow on from my trainer that I had very much outgrown. I went electric with the recommended set up from George at 4-Max and have no complaints at all with the performance. I'm looking forward to getting this out again and doing some formation flying with another club mate who owns Peter's original Ballerina. Thanks, Neil 4 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 9, 2023 Author Share Posted October 9, 2023 Hi Neil, I am so glad that you have had some good flying with Oodalally and are enjoying it. It is a nice model which I why I built a second one with the electric conversion. You have done a very nice of the building and covering. I wish you many happy hours of flying with her. Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 12, 2023 Share Posted October 12, 2023 Hi Peter I have a question about the wing trailing edge spar. Apologies if this question has already been raised else where in this thread. The plan states that the rear spar is made from 1/4 sheet and not 1/4 square is this correct?. Also the plan shows that the rear spar is chamfered both top and bottom but this can't be achieved on the bottom edge as it needs to be glued directly onto the trailing edge cap strip. I hope this makes sense. Dave Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 12, 2023 Author Share Posted October 12, 2023 The trailing edge spar will be fractionally larger than 1/4 Sq due to the taper of the TE. But in fact 1/4Sq could be used. I know that because I just built the SARIK version of the parts. In fact up until then they had not included the 1/4 sq TE. I have now advised them of that fact. To be honest when I built that Sarik kit I didn't realise the discrepancy that the original instructions said that and I just used 1/4 square and never noticed any problem...This may say something about my building🤔 Actually that drawing shows that the bottom is square or at 90 degrees to the vertical sides. If you happen to have some 1/4 sheet you can strip off some slightly wider sections and shape to match the ribs as shown. Alternatively you can either add a strip of 1/16 to the top of 1/4 sq. but that is being fiddly. The final solution would be to use 1/4" square and a bit of sanding and fractional thinning of the aileron. I hope this helps. Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 12, 2023 Share Posted October 12, 2023 Cheers Peter I like to make things as easy as possible, so if it works will just use some 1/4 square. Thanks for your help and I know I keep promising will try to add some pics of the build where I can. Dave Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 12, 2023 Author Share Posted October 12, 2023 Hi Dave I am a strong believer in the KISS principle. have fun and enjoy. Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 12, 2023 Share Posted October 12, 2023 While I was in the moment, here are the pics of my fuselage frames. I have made them from 1/8 lite ply and have made them lighter whilst keeping good strength. I believe they will be stronger than just using balsa and although I have not been able to weigh them the weight difference should be minimal. 1 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 12, 2023 Author Share Posted October 12, 2023 They look impressive. Should be fine. Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 12, 2023 Share Posted October 12, 2023 I was thinking of doing similar to the tail h stab and v stab but still using 1/4 balsa to elevate some tail weight. Thoughts ? Quote Link to comment Share on other sites More sharing options...
Graham Davies 3 Posted October 12, 2023 Share Posted October 12, 2023 Just now, LHR Dave said: I was thinking of doing similar to the tail h stab and v stab but still using 1/4 balsa to elevate some tail weight. Thoughts ? Be careful Dave, liteply is not particularly strong. Being a plywood, a percentage of the grain is always 'the wrong way'. Given the likely weight saving, I think I'd either stick to the plan method, or do a full build up. Last thing you want is a tailplane folding! Graham Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 12, 2023 Author Share Posted October 12, 2023 I certainly would not change the tailplane and elevators. I have used built up tail surfaces on some models but they are too weak in the event of a tumble. My new Oodalally broke the standard tailplane which it landed out in a weed covered field. It was very soft wood but was solid sheet. Quote Link to comment Share on other sites More sharing options...
kc Posted October 12, 2023 Share Posted October 12, 2023 The liteply formers look like a lot more work than balsa! The biggest 2 appear to have 'short grain' just where one might grab the fuselage and squeeze it when handling. Maybe the grain on those would be better 90 degrees other way round? ( I mean the grain in the ply outer layer ) As they have been made both the formers and balsa sides have the grain the same way, instead of opposite as on the plan. ( fuselage sides grain fore and aft while formers have grain vertical on most plans ) Nothing to resist fingers squeezing fusealge sides inwards! Sorry to be critical of your nice workmanship but it's better to say now than when it's too late & built right into the plane! I also wonder whether they will allow 'snakes' to be supported or sufficient clearance for pushrods if those are prefered........ Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 13, 2023 Share Posted October 13, 2023 All points of view welcome as many eyes are better than just mine . I still have the original frames that I have made from balsa. The good thing is that as I don't get much time to build I tend to gather bits I have made along the way without commiting to glue. I will reevaluate as I go but think you could be right. I enjoy building and probably think I was being too clever making the frames as I did. Anyway I am still building up the wing so will be a fare while until I get onto the fuse. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 13, 2023 Author Share Posted October 13, 2023 There are a lot of sayings which I always follow "KISS" = Keep it simple, stupid. Simplicate and add lightness. What isn't there can't go wrong. But people like to try different ideas and sometimes they come up with things that no one has ever thought of. A classic example. How many people shape trailing edges from a strip of balsa cut from the sheet? Many years ago I edited the gadget pages in AMI. A chap sent in the idea of shaping the T.E. and then cutting it off the sheet. Obvious isn't it!!! And yet four members of the club who had been modelling since the 50 and one who was modelling before the war had never thought of doing it that way. We had all cut the strip and then wrestled with shaping it. I wonder how many others had never thought of doing that way. That chap won the prize that month!! 1 Quote Link to comment Share on other sites More sharing options...
Nigel R Posted October 13, 2023 Share Posted October 13, 2023 I'd agree with kc, the formers look too weak to me. And cutting holes in things is generally (a) a lot of work, and (b) not worth it. Formers can be made from four short strips of balsa, two upright, two across - you get the grain going in the right directions that way. Plus they can be knocked up from scraps. The shaped top deck formers I'd just cut from sheet wood. Keep it simple, is a good mantra. Don't gold plate it! Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 13, 2023 Share Posted October 13, 2023 Peter, I am having a moment! I have found some of the original balsa frames I made a long time ago but can't find F5,6,7. As it 2as long ago I can't remember hiw I made F5 and 6 as they are taller than the width of a 4" sheet of balsa. Please enlighten me. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 13, 2023 Author Share Posted October 13, 2023 The grain should go vertically up the long dimension. If you like you can glue 1/4" wide strips across the former to add stiffness Quote Link to comment Share on other sites More sharing options...
LHR Dave Posted October 13, 2023 Share Posted October 13, 2023 The plan showed it going across thats why I was confused Quote Link to comment Share on other sites More sharing options...
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