Craig Thomas Posted January 11, 2016 Author Share Posted January 11, 2016 This is the little beauty that will be powering the ballerina. It's a Saito 56. Can't wait to fire her up. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted January 11, 2016 Share Posted January 11, 2016 Build's looking good Craig, I see you've bought a little gem to pull it around John Quote Link to comment Share on other sites More sharing options...
AVC Posted January 11, 2016 Share Posted January 11, 2016 Nice powerplant Craig! Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 11, 2016 Author Share Posted January 11, 2016 I'm hoping the plane will be built well enough to warrant the engine. 😕😕 Quote Link to comment Share on other sites More sharing options...
AVC Posted January 11, 2016 Share Posted January 11, 2016 Of course you will! Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 11, 2016 Author Share Posted January 11, 2016 Tomorrow I'm going to start on the wing tip. , then raise the lower sheet and add the leading edge strips. Is it better to leave the wing half pinned to the table whilst raising the lower sheeting or lift the wing and turn it over? And do I add the leading edge strips first or after sticking the sheeting. Quote Link to comment Share on other sites More sharing options...
AVC Posted January 11, 2016 Share Posted January 11, 2016 Hi Craig.I left mine pinned to the table while lifting the lower sheet, and added the LE afterward, following Peter Miller's method.But this is the first time I do it this way. Normally I would unpin, add the LE strip (and sand to shape), turn it upside down, and glue the lower shetting, turn it again and glue the upper one.I like PM's method and I would advise you to follow. I will do it in the future Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 11, 2016 Share Posted January 11, 2016 The tip does not need to be made and certainly NOT fitted until the wing is complete. I am sure that your model will be great. New builders tend to build far better than many older builders. Many of us often work on the old addage "A good covering job will hide a bad building job. Nothing hides a bad covering job." Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 11, 2016 Author Share Posted January 11, 2016 Posted by Peter Miller on 11/01/2016 18:35:38: Many of us often work on the old addage "A good covering job will hide a bad building job. Nothing hides a bad covering job." Ha Ha. Trouble is that covering seems to be a black art too. There a lot to learn. 🤓🤓 So leave the wing tips until untill the wing is complete. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted January 11, 2016 Share Posted January 11, 2016 Posted by Peter Miller on 11/01/2016 18:35:38: The tip does not need to be made and certainly NOT fitted until the wing is complete. I am sure that your model will be great. New builders tend to build far better than many older builders. Many of us often work on the old addage "A good covering job will hide a bad building job. Nothing hides a bad covering job." Set up in corner of field, fly far away Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 12, 2016 Author Share Posted January 12, 2016 Another lesson learned. Be a little sparing with the glue. Up early this morning so decided to go and glue lower sheeting. I've noticed that when I epoxy'd the ply strip in to the ribs I dripped epoxy on the sheet so when I've raised the sheeting it won't sit flush to the ribs. Think I'm going to need some filler. Think I'm going to need a lot of filler by the end of the build. 🤔🤔🤔 Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted January 12, 2016 Share Posted January 12, 2016 Posted by john stones 1 on 11/01/2016 19:15:31: Posted by Peter Miller on 11/01/2016 18:35:38: The tip does not need to be made and certainly NOT fitted until the wing is complete. I am sure that your model will be great. New builders tend to build far better than many older builders. Many of us often work on the old addage "A good covering job will hide a bad building job. Nothing hides a bad covering job." Set up in corner of field, fly far away And fly fast! Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted January 12, 2016 Share Posted January 12, 2016 In my experience most beginners use too much glue. It seems intuitive that more glue will give a stronger joint - it very rarely true! A bit of glue - in the right place! - is far more effective. And a lot lighter! Glue (especially epoxy) is heavy. BEB Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 12, 2016 Author Share Posted January 12, 2016 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 12, 2016 Author Share Posted January 12, 2016 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 12, 2016 Author Share Posted January 12, 2016 Because I'm building in the garage with no heating it is taking an eternity for the glue to dry. I'm just about ready to add the top LE sheet. Whilst the glues drying I've sorted the aileron housing. Just a piece of ply with a servo sized whole cut out the middle. Should work fine. Quote Link to comment Share on other sites More sharing options...
kc Posted January 12, 2016 Share Posted January 12, 2016 Take the building board indoors when you finish for the day! Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 12, 2016 Author Share Posted January 12, 2016 I can't KC. The board is nearly 6 foot. The Mrs would go mad. But fear not. Another lesson I've learned is to only build on a board small enough to be mobile. I can turn it round then as well. Seems to be taking ages this half wing. I think the second half will go together much faster though as I know what I'm doing. "Sort of" Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 12, 2016 Author Share Posted January 12, 2016 Can anyone please tell me how the ply plate for the wing fixing is done? I understand that the ply plate glues to the bottom of the ribs. Then the plan says infill with sheet, how high do I fill? To the top of the ribs? Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 12, 2016 Share Posted January 12, 2016 The 1/8"ply plate with the blind nuts is glued up inside the fuselage . IT is set in about 1/4 to 3/8" and should be parallel wit the bottom of the wing. Then the balsa is added to build it up flush with the fuselage sided. It is not attached to the wing at all except by the bolts which hold the wing on. The basla adds a lot of gluing area and also allow the shape to match the wing surface There is 1/16" ply plate glued to the bottom of the wing to prevent the bolts from pulling through the wing. Quote Link to comment Share on other sites More sharing options...
kc Posted January 13, 2016 Share Posted January 13, 2016 I think the wing centre section is sheeted with 1/16 balsa top and bottom and the ply plate goes onto the balsa to save the wingbolt heads pulling through. ( the ply is not glued direct to the ribs but to the sheeting This means the sheeting is held under the wing bolts too) To save the wing bolts crushing the wing there it is made solid with balsa under the sheeting. Also under the wing bolt plate is made solid with balsa. Locating the place to put the holes for wing bolts is normally done by putting bolts in from the top of the captive nuts until they just protrude to touch the wing sheeting, bolt ends then have bootpolish or something so they leave a mark. Some use a nylon bolt sharpened in a pencil sharpener instead. That leaves an indentatio if its sharp.. Of course make sure the wing is square and dowel fully home into F2 before making these marks. If the captive nut plate is not parallel with wing underside then the bolts might come out at a different place to the planned holes. Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 13, 2016 Author Share Posted January 13, 2016 Thanks KC. excellent description. I' Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 13, 2016 Share Posted January 13, 2016 Yes, I forgot the solid infill in the wing where the bolts go but it is detailed on the plan. I have two nylon wing bolts with the heads cut off. These have been sharpened in a pencil sharpener to points. screw them into the blind nuts. Fit the wing, line it up ans press down. Holes marked. Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 13, 2016 Author Share Posted January 13, 2016 Not sure if I've done something wrong here? I've started the second half of the wing today and have got as far as gluing the ribs in. But the noticed that the end rib seems to come up short? I've checked the other half of the wing and that's the same. The ribs are the exact same size as on the plan? It seems like the rib is a little too short for the wing tip? Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted January 13, 2016 Author Share Posted January 13, 2016 No no. I've just used my brand and figured it out myself. The rib comes up short because I've got the trailing edge still to fit. DOH. .......... Quote Link to comment Share on other sites More sharing options...
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