EarlyBird Posted December 11, 2020 Share Posted December 11, 2020 Received today impressed by the plans on three sheets including both wing halves. But then became a bit confused. It looks to me like it is a triplane Any ideas? Cheers Steve Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted December 11, 2020 Share Posted December 11, 2020 Steve The devil is in the detail You will notice that there is a horizontal line across the drawing denoting that the top half is for a different model, you just need the lower section.. Someone has done a bi-plane version of Peters designs, but fee free to do a tri-plane version of the Ohmen….really fancy a tri-plane....I wonder what Peter would say? PS The drawing comes from a double free plan and to save paper both models used three sheets. Edited By Chris Walby on 11/12/2020 11:27:13 Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted December 11, 2020 Author Share Posted December 11, 2020 Vic Smeed Coquette thanks Chris all is now explained. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted December 11, 2020 Share Posted December 11, 2020 Now that is a thopught, a Biplane Ohmen. I have just finished my Team Minimax and needed a new project to build over Christmas. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted December 11, 2020 Share Posted December 11, 2020 Please, Peter don't! I have enough of your models on my list already (one in progress and all the wood etc ready for the next) and I love biplanes. Geoff Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted December 11, 2020 Share Posted December 11, 2020 May be you are right. I will find something else. Quote Link to comment Share on other sites More sharing options...
Graham Davies 3 Posted December 11, 2020 Share Posted December 11, 2020 I'm already thinking of an Ohmen triplane! How about an elliptical wing bipe or trip based on Peggy sue or Harmony? That would look great! Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted December 11, 2020 Share Posted December 11, 2020 Posted by Graham Davies 3 on 11/12/2020 12:59:18: I'm already thinking of an Ohmen triplane! How about an elliptical wing bipe or trip based on Peggy sue or Harmony? That would look great! Ypou are welcome...just don't look at ME!!! Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 17, 2021 Author Share Posted August 17, 2021 This was going to be for last years winter build so I had better get on with it and stop looking at the very tempting Sarik marketing I keep receiving. Last night I unpacked the parcel and started the tedious job of popping out the laser cut parts. Now I have started I will have to continue. More to come. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 17, 2021 Share Posted August 17, 2021 I shall watch with interest. Quote Link to comment Share on other sites More sharing options...
martin collins 1 Posted August 17, 2021 Share Posted August 17, 2021 `Last night I unpacked the parcel and started the tedious job of popping out the laser cut parts.` Not half as tedious as actually having to cut them all out on an old print wood model!!! Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted August 17, 2021 Share Posted August 17, 2021 Even less tedious than copying them from a plan, transferring them to wood and cutting them out. (but before we go too far down the line of the 4 Yorkshiremen sketch, at least we have scroll saws and Permagrit to ease the task these days and don’t have to rely on one of Dad’s old razor blades any more!) All the more rewarding when your creation takes to the air. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 17, 2021 Share Posted August 17, 2021 Wth the OHmen (parallel chord wing) One plywood template and zip round with a scalpel and the job is done in 10 minutes 1 Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 20, 2021 Author Share Posted August 20, 2021 Parts are all separated and stacked ready. I have seen advice that by starting on the wing then the 1/32 fuselage doubler can be used as a gauge for shaping the leading edge. I am going to give it a try. There's no rush as this is my winter build.? Quote Link to comment Share on other sites More sharing options...
kc Posted August 20, 2021 Share Posted August 20, 2021 (edited) If you are cutting out the parts yourself with a bit of care the offcut from the fuselage doubler can be used for a wing rib template! The rib template is always slightly thinner to allow for sheeting so some sanding is possible ( on designs with capstrips anyway ) Edited August 20, 2021 by kc Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 20, 2021 Share Posted August 20, 2021 Just stick the rib from the plan onto the ply off cut. and that will give the correct rib shape Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 20, 2021 Author Share Posted August 20, 2021 Starting with the wing ribs. Fit the top and bottom spars using off cuts, this also removes that charred dust. Lightly sand the grouped ribs, again to remove the charred wood. Removing the laser burnt wood is a good idea as the glue works better and the wing will not fall apart on the first heavy landing. Next? Set up the building board ready for the serious work to begin. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 20, 2021 Author Share Posted August 20, 2021 On we go. Bottom LE sheeting pinned in place then bottom spar cut to length glued and pinned. TE bottom sheeting cut to length and width pinned in place. TE spar cut to length and test fitted using ribs to set the distance as the plan and parts do not always match, in this case perfect. It's always good to check the fit. Next cut the shear webs and I could cut and glue the bottom rib caps. ? Then glue the ribs. I will decide tomorrow. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 22, 2021 Author Share Posted August 22, 2021 All the parts for the wing made and test fitted. One rib is way out, but don't worry as nothing is glued. Glue the ribs in and don't forget the paper tube, again! Leave R1, glue the rest, insert tube, then glue R1. That's what I will do, if I remember. ? Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 22, 2021 Share Posted August 22, 2021 I see that they cut the holes for the tubes in all the ribs except R-1 Makes sense really Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 22, 2021 Author Share Posted August 22, 2021 1 minute ago, Peter Miller said: I see that they cut the holes for the tubes in all the ribs except R-1 Makes sense really Oh yes if I forget then I can feed the tube from the tip end. That's very clever of them. Quote Link to comment Share on other sites More sharing options...
kc Posted August 22, 2021 Share Posted August 22, 2021 The trick ( Peter's idea I think ) to get the paper tubes in is wrap the paper loosely around a pencil and poke into the holes then let it unwrap itself, then glue. Worked for me and it's worth repeating in case anybody has not heard of the idea. Once the paper tube has been glued in I find it worthwhile to insert a thin string ( using a tiny weight and gravity ) to enable the servo lead to be pulled in after covering. 1 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 22, 2021 Share Posted August 22, 2021 That is the way that I do it!! Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted August 22, 2021 Author Share Posted August 22, 2021 It worked ? ? Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted August 22, 2021 Share Posted August 22, 2021 Of Course!!! Quote Link to comment Share on other sites More sharing options...
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