McG 6969 Posted January 17, 2020 Author Share Posted January 17, 2020 Hi John, ... and thanks for your comment and compliment. Luckily I'm 'on parole' and fortunately the guys I need for my progress are out there as well... I'm just hoping that balsa cement is not on the black list for the others and that they will be released in time for the Great Orme. By the way, are you still on that little rock in the Frisco bay or have you been able to go on with your Sabre... ??? Cheers Chris Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 18, 2020 Author Share Posted January 18, 2020 Hi to all, Well, it seems I can claim the 200th post here on the Dog's threat. When I was building up the second fuse half, I forgot to mention that I added a 6mm beech quarter round to join W1 to the former. I don’t really believe it’s necessary, but I thought it wouldn’t harm if the ‘central’ sub-assembly got slightly reinforced. The eagle-eyed among you will have noticed that the snake eyelets in the fuse are ‘gone’… (sorry, Martin & Gordon). As I will be using a carbon tube to the back end for the tailplanes, this might be an attempt to compensate for the weight of my quarter round… The following doesn’t apply to a standard Sabre but the D, K and L versions of the Dog have a totally different cockpit lay-out with a bulkier ejection seat arrangement. So, for a D-type, the top part of F4 has to be modified i.e partially cut away. A transversal piece of spruce gives the former his original rigidity back while a large part of the top section above the spruce will be removed later. Again, the additional weight will get compensated. At the moment, I’m trying to figure out what is still needed ‘inside’ before I go on with the planking. Hakuna matata Chris BRU - BE / CTR Weight Control Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted January 19, 2020 Share Posted January 19, 2020 Hi Cris ,Are you visiting the RC model show in Wavre ,1 -2 february ? Would be nice to meet you ! Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted January 19, 2020 Share Posted January 19, 2020 Good to see more progress Chris. What is your plan regarding the cockpit? Are you going for the pilot bust from shoulders up or full depth with seat & instrument panel, and maybe even pilots boots? Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 19, 2020 Author Share Posted January 19, 2020 Thanks, guys. @ Chris > In fact, it will depend on the time I have left later on. The initial plan is to have the pilot bust down to his 'waist', including the back of his seat and the upper part of the instrument panel. But, that's only the 'projected idea'... @ Dirk > I don't visit a lot of shows normally but indeed it would be nice to meet in Wavre. Are you going Saturday or Sunday? It will also depend if my flu is over by then. Since yesterday I have it quite badly and I had planned some long session at La Grotte for today. Iris is home from work since nearly a week now... so, I guess it must be my turn... Keep an eye on your PM-box, Dirk. I'll send you my contact details. Cheers Chris Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 22, 2020 Author Share Posted January 22, 2020 Hello again, Well, it seemed an eternity since my last progress to the build. I had to go to the pharmacy today and decided to have a short visit at La Grotte. As I’m really not OK yet, so I just did some ‘nearly useless’ stuff like emptying the garbage tins, having some tools and bits back to where they belong, cleaning the ‘Fabrication Department’ and cutting a bunch of strips for further planking… I finally even managed to plank a few more strips to keep the structure symmetric. I just hope to feel better soon… Hakuna matata Chris BRU - BE / CTR Flu Control Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 23, 2020 Author Share Posted January 23, 2020 Hi everybody, Being a few days prisoner at home gave me good opportunity to do some more research regarding the Dog version of the Sabre. One thing that seems ‘prominent’ are two large scoops for the GE 17 turbine together with two NACA inlets at both sides of the fuse. The scoop inlets are symmetrical both sides and can be added later, but the NACA inlets need some carving in the thickness of the fuse and are placed at very different places. I decided to prepare a couple of laminated planks that will be glued inside the fuse to allow the carving that will be around 3mm deep. I covered the fuse with a few strips of Sellotape, placed some planks at the requested strategic places to have the correct local curvature, laminated them together and kept in place with some masking tape. Even Gaston doesn’t understand my intentions very well… I also prepared the two bearers for the servo plate and added two more planks to the fuse. Time to head home - totally exhausted - but at least ‘half a bite’ of progress… Hakuna matata Chris BRU - BE / CTR NACA Control Quote Link to comment Share on other sites More sharing options...
Steve Houghton Posted January 23, 2020 Share Posted January 23, 2020 Hi Chris, Your work is impressively neat and tidy, and inspirational to the rest of us. Thanks for your comments on mine - will respond later on. Quote Link to comment Share on other sites More sharing options...
John H. Rood Posted January 23, 2020 Share Posted January 23, 2020 Chris, glad to hear you are on the road to recovery from that miserable flu bug. And who knows, the good chaps of the British Royal Air Force might even help out an errant Belgian get back in the fray. Heavens maybe even a bloomin' YANK, perchance!!! Edited By John H. Rood on 23/01/2020 22:49:51 Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted January 23, 2020 Share Posted January 23, 2020 Hi Chris ,Soon we'll be counting rivets i guess My list of '' details to do'' just got longer ... Great work ! Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 24, 2020 Author Share Posted January 24, 2020 Thanks for commenting, gents. You’re mostly welcome, Steve. I guess that’s the idea of MB blogs. I just hope I won’t need your RAF Recovery Set at the Great Orme, John. That is if I ever get ready for it… No rivets for me, Dirk. Maybe just a few panel lines if you can teach us how to draw them… The F-86s have mainly flush rivets and at 1:10 they would be under 1mm. No idea how to manage to reproduce them, I’m afraid… Cheers Chris Quote Link to comment Share on other sites More sharing options...
David Sack Posted January 24, 2020 Share Posted January 24, 2020 I found this article for the 'rivet counters' while I was searching for how to finish fibreglass. I think its worth a look - https://www.modelairplanenews.com/create-a-perfect-fiberglass-finish-part-3/ Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 24, 2020 Author Share Posted January 24, 2020 Thanks David, The ironing tip suggestion seems like a great idea, but then it seems like a lot of methodical work. I have no idea if I will have time left for that though... Duly noted anyhow. Cheers Chris Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 25, 2020 Author Share Posted January 25, 2020 Hello again gents, Before going on with too much planking, I thought it was time to build the servo plate so I glued in the bearers. One of them is ‘L’ shaped and was butted to F5 while the second is a duo of two spruce planks laminated together and glued to former F6. These are the first of the ‘NACA planks’ to get fixed inside the fuse against F7. … then I just went on with some more… planking. Is this really supposed to be ‘therapeutic’??? … Hakuna matata Chris BRU - BE / CTR Thera Control Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 26, 2020 Author Share Posted January 26, 2020 Hi to all, I had a little progress at La Grotte. The servo plate got made up and attached to its bearers. Like Martin, I’m using Turnigy 9018MG servos as he is quite happy with them. Well, in fact a single one for the elevator as I’ve had ‘problems’ with the planned rudder. As I wrote before, the Dog’s vertical tailplane is VERY different to the standard Sabre one. Not only is it about 40mm taller at 1:10, the rudder is of course longer but more important a lot smaller in his ‘chord’ dimension. This means that the rudder hinge axis just crosses the center of the elevator bellcrank. So, I had two choices: increasing the rudder chord a lot to bring it front of the bellcrank - but why then a scale Dog tail end - or keeping the rudder scale but not functional. I’m going for the latter at the moment, but the jury is still out there and things might change as I have space enough on the servo plate… Here’s the second NACA-doubler glued in next to the servo plate. … too much ‘pondering’ or maybe just getting lazy but only two planks added to the fuselage this session… Hakuna matata Chris BRU - BE / CTR Rudder Chord Control Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted January 26, 2020 Share Posted January 26, 2020 No problem giving yourself a little time to ponder... Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 27, 2020 Author Share Posted January 27, 2020 Thank you , Phil. The jury is still out regarding the rudder, but I might stick to a scale-ish looking tail as that will be enough of a challenge for me. Thanks also for your suggestion of laminating 2 x 6mm planks for the wing tips instead of using Blue Foam. I guess that's all the difference of being a Master in front of the classroom or a 'dreaming' pupil at the back of it... ... 4 fuse planks today - apart from the 'pondering' - as I need to have the front part of the fuse planked before I can start with the 'radome nose' build up. I'm mainly working at the dorsal part of the fuse as I need to keep the belly part 'open' till the elevator bellcrank is sorted... Hakuna matata Chris BRU - BE / CTR Pondering Control Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 28, 2020 Author Share Posted January 28, 2020 Hello, There are others things in life than only balsa planking… … one of them is gluing Blue Foam. I attached the earlier prepared bits and left them to dry while cutting the next load. The main problem I have is that my sheet is only 25mm thick and I have to puzzle it together… Not a problem at first sight, but being basically a great contact adhesive, UHU Por is very rubbery and almost impossible to sand. So, the message I got (a tiny bit) earlier in my apprentice days is to use Por for foam to foam joints at the inside and to use Superphatic at the edges of the foam or for joining it to wood. Hakuna matata Chris BRU - BE / CTR Sanding Control Quote Link to comment Share on other sites More sharing options...
dirk tinck Posted January 28, 2020 Share Posted January 28, 2020 Hi Chris,I'm using cement to glue foam blocks that need sanding.The foam cement that is used to glue the fairings between wall and ceiling,moluren as we call them,sands like butter !! BTW ,I made you a canope frame this evening,so it will be dry and ready to cut by the weekend.I will have it with me at Wavre if our meet is still on the agenda ? Greetz , Dirk. Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 29, 2020 Author Share Posted January 29, 2020 Thanks for the tip, Dirk. That 'ceiling mouldings' foam cement must be available in DIY-stores, then. I'll get some during my next visit to Brico;. Yep, our Wavre meeting is still very much on my agenda. I'll be at the townhall Sunday in between 10 & 10.30am. Thanks in advance for the 'frame' and please, don't trim it too close as the Dog canopy is a bit different than the standard one. If you can, just a marker line showing the outline of your trimmed Vortex canopy should be great. Thanks again & cheers Chris Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 29, 2020 Author Share Posted January 29, 2020 Hi again, I went on with my foam construction including the smaller nose blocks. I’m still using the Por/Superphatic method but of course I will try Dirk’s cement tip next time. A bit of shaving down with the razor saw first, followed with thin slices removed with a hot Nichrome wire. I may have been a tiny bit too ‘aggressive’ at some spots, but nothing that a smear of lightweight filler can’t handle… The shark mouth has been roughly sculpted internally to prepare for the later (filler?) sanding. I realize it looks quite ‘agricultural’ at the moment, but I hope to give it a better look once sanded down a bit… Hakuna matata Chris BRU - BE / CTR Mouth Control Quote Link to comment Share on other sites More sharing options...
Iris Vlieghe Posted January 30, 2020 Share Posted January 30, 2020 Shark mouth? Oh dear, that sounds scary! Keep on building Chris, you are doing great. Hakuna (and all the rest) Iris BRU - BE / CTR Cheer Control Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 31, 2020 Author Share Posted January 31, 2020 Thanks, Lady. ... and no worries, if you have a close look, it has a big mouth but no teeth. A bit like the "Barking dogs don't bite" expression... Cheers Chris Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 31, 2020 Author Share Posted January 31, 2020 To ‘any living soul still watching’, The more I have some balsa planks being glued together, the more the F-86 seems ‘enormous’. Of course, I should finally be realizing now that I’m building the ‘Dog’-version… The D, K or L versions are indeed ‘bulkier’ or ‘fatter’. My 1:10 fuselage for example is 20mm longer and around 6mm larger behind the cockpit area down to the tail at 4mm thicker at F10. The more planks I ad, the worse it becomes. Now I can’t compare with the fuse of a standard Sabre as designed by Martin and Gordon but I’m slowly getting a bit worried… As the majority of the Mass Builders seem to be on 'stand-by', there aren’t that many pictures of completed F-86 fuselages to find in the MB blogs on the forum, but mine starts to look like the natural product of a pregnant U-boot and an A-400… It might also be the Arch of Noah with a ‘heavy’ problem of obesity though, but why nickname it ‘Dog’ then instead of ‘Whale’… ??? Hakuna matata Chris BRU - BE / CTR Obesitas Control Edited By McG 6969 on 31/01/2020 20:33:46 Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted February 1, 2020 Share Posted February 1, 2020 The Sabre fuselage is quite sleek Chris so I wouldn't worry about it getting a little "fat" Maybe it's called a Dog because it has a wet nose? Keep going, we're nearly half way there! Quote Link to comment Share on other sites More sharing options...
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