Bob Bertram Posted November 3, 2020 Share Posted November 3, 2020 Will take some photos in the next couple of days and post them. It will be electric powered, most of the fuselage is done except for the snakes and servo fitting. Wings are more or less complete. Have made a stand off motor mount using the original firewall and the battery is behind the firewall. May have to sort something out regarding CoG etc. I have made a mold out of blue foam for a fibreglass cowling but it needs a bit of fettling. Have recently acquired a shabby Veron RF5 which has longer wings than the original kit. (Ihave a thing about Fourniers!) I was considering turning it into a slope soarer but there are not too many slopes here in Suffolk! Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 4, 2020 Author Share Posted November 4, 2020 So far so good. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted November 4, 2020 Share Posted November 4, 2020 That looks excellent. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 5, 2020 Author Share Posted November 5, 2020 Thanks Peter. Glued along the spine. The tape was for bending the damp sheet on the second side and here it is ready for glue. Which will happen after my second coffee. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Bob Bertram Posted November 5, 2020 Share Posted November 5, 2020 Looking very neat Steve. Finally got mine out of the rafters so here are some pics. One showing the mold for the cowling. Another of the story so far and one of the motor mount which will probably be changed from bolts/tubing to threaded rod/lock nuts to make any adjustments easier. Oh dear, I've managed to make a faux pas and can't delete the picture above! Quote Link to comment Share on other sites More sharing options...
Fun Flyer Posted November 5, 2020 Share Posted November 5, 2020 That looks terrific Bob. Welcome to the club! Having done so much work it would be a shame not to finish it. You've done the difficult bits. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 5, 2020 Author Share Posted November 5, 2020 I agree with FF and we are at the same stage Bob. Deck covered. After a bit of sanding I noticed this nice bit of detail. The grain matches. That would be a shame to cover it up. Tail surfaces next and I am wondering how to to lighten the load. The rudder is especially heavy. My thoughts are either open frame or built up on a 1/16" balsa sheet. There again I could drill large holes or taper them down or both. Any ideas? Cheers Steve Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted November 5, 2020 Share Posted November 5, 2020 Either will work OK Quote Link to comment Share on other sites More sharing options...
Bob Bertram Posted November 6, 2020 Share Posted November 6, 2020 Thanks. Now going through the plans and build article plus Peter's thread on here. Maybe some movement soon. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 6, 2020 Author Share Posted November 6, 2020 That's good news Bob. I am looking at the tail surfaces that are 1/4" medium balsa. My thoughts are to go for a built up structure using 1/2" x 1/4" frame with 1/4" x 1/4" struts. I have worked out that on the fin this will reduce the area by 40%. If I had a set of scales I could convert that to grams. Making assumptions on the type and density of balsa this equates to three grams. Hmm . Over all maybe 30 grams. On the tail and 100 grams on the nose. Hmm more . Obviously I am guessing but I like open framed structures and I like to experiment, as it adds interest. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Bob Bertram Posted November 6, 2020 Share Posted November 6, 2020 Sounds good Steve, every little helps. I was thinking of going the same route. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 7, 2020 Author Share Posted November 7, 2020 Thanks Bob, I will take that as a joint decision and get on with it. Cheers Steve Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 7, 2020 Author Share Posted November 7, 2020 A start on the fin. All from the scrap box. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Fun Flyer Posted November 7, 2020 Share Posted November 7, 2020 I think I'll have to start over. Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 7, 2020 Author Share Posted November 7, 2020 FF that is sad news The fin did not look very good, using scrap made it look tatty. I gave it a bit of sanding and the ugly duckling turned into a swan. I started on the rudder. That's enough for today. Cheers Steve Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 8, 2020 Author Share Posted November 8, 2020 Continuing with the rudder this morning. Just waiting for the glue to dry before I turn it into a swan with the aid of sandpaper, I hope. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Fun Flyer Posted November 8, 2020 Share Posted November 8, 2020 Looking good. It would be interesting to weigh the solid and built up versions of the fin and tailplane just to see what the weight difference is. Quote Link to comment Share on other sites More sharing options...
Trevor Posted November 8, 2020 Share Posted November 8, 2020 I almost always replace solid tail surfaces with built up ones. Sometimes, rather than pursuing weight saving as a primary objective, I instead permit myself the luxury of using harder (so probably heavier) wood where appropriate, particularly on leading edges which so easily pick up dings and dents. Quote Link to comment Share on other sites More sharing options...
Bob Bertram Posted November 8, 2020 Share Posted November 8, 2020 Very nice Steve. As a matter of interest, what servos are people using in their RF4? I was thinking of using Tower Pro MG90S as I have a few lying around. Cheers Bob Edited By Bob Bertram on 08/11/2020 16:47:02 Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 8, 2020 Author Share Posted November 8, 2020 Thanks Bob, I bought 4-Max 4M 100 AMG 022 for the wings. I had two HS 81MG servos lying around and used them for elevator and rudder. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted November 8, 2020 Share Posted November 8, 2020 Back when it was designed I was using Hitec311s Now I would use metal geared micro servos. Quote Link to comment Share on other sites More sharing options...
Fun Flyer Posted November 8, 2020 Share Posted November 8, 2020 I used standard servos on the rudder and elevator and the metal geared from 4-Max for the ailerons. Quote Link to comment Share on other sites More sharing options...
Bob Bertram Posted November 9, 2020 Share Posted November 9, 2020 Thanks all, I will check out all the specs. FF, which colour scheme did you use. I like the original factory colours. Cheers Bob Quote Link to comment Share on other sites More sharing options...
EarlyBird Posted November 9, 2020 Author Share Posted November 9, 2020 Rudder! Tailplane next. Cheers Steve Quote Link to comment Share on other sites More sharing options...
Fun Flyer Posted November 9, 2020 Share Posted November 9, 2020 Posted by Bob Bertram on 09/11/2020 08:33:28: Thanks all, I will check out all the specs. FF, which colour scheme did you use. I like the original factory colours. Cheers Bob This is the plan Bob, but I've only got as far as the cowl. Quote Link to comment Share on other sites More sharing options...
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