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A trio of triplanes, soon to be a quintet, Pfalz, Fokker, 2 Sopwiths


Marklo

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Mark,

 

I've just noticed that you have rounded the corners of the top wing cutout. On the top wing they are square. The spinner was very like that in shape and size as was fitted to the Morane  N.

 

My preferred wood was always English Lime. This can be found in specialist wood carving circles such as walking stick tops. Bass wood is what the Americans call their variety of Lime wood.

 

Jelutong is to me a bit like a hard Balsa. Sycamore is another carving wood but it can be a bit grainy.

 

John

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I've just noticed that you have rounded the corners of the top wing cutout. On the top wing they are square.


 

Well spotted, in fact I've got the two cutouts slightly wrong. 

 

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The spinner was very like that in shape and size as was fitted to the Morane  N.

Knowing the way these things go it probably was one off a Morane.

 

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My preferred wood was always English Lime. This can be found in specialist wood carving circles such as walking stick tops. Bass wood is what the Americans call their variety of Lime wood.

I must admit I tend to use what's handy, balsa for simpler shapes and deal for more complex things. I'm interested to see what the lime wood is like so I'll wait till it arrives before carving the snark (of course that's assuming I get to the snark before that anyway as I have a lot of projects in at the moment :) )

 

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This is for the Ju87a and it's deal (I think)

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Didn't get near the bench much over the weekend, and when I did I concentrated on the DH4a and repairing it after my cat had made a 4 point landing on it, hmmmm. But the bass wood arrived today. €12 for a 3" x 1" x 12" block (inches btw, I am conversant in both and oddly enough when I did work in Aerospace as it was predominantly american engines so  I worked in inches.). should be good for many mold blanks. Will be interesting to see how it handles. I pretty much have my Snark sections too so I may get to carving and sanding in the next week or so.

 

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I've added the slightly squared profile to give me something to attach the lower wings to. I'll fix it up according to the plans/photos in the carving stages.

Edited by Marklo
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I now have a block of wood (basswood I might add) not entirely unlike a Snark. Plastic center, double sided stickied together so I can split it easily for molding once it's carved.

Edited by Marklo
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Less a blank more a Snark. The basswood definitely carves nicely and has a very close grain, so (notwithstanding Carving errors) may not need any filler to close the grain like the Balsa does. Might even be ready for molding by the weekend, but I may hold off till I get the spinner done (may also go again for a molded cowl for the Pfalz)

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And almost there. Milliput to cover up some overzealous carving and to reshape the very end of the fuselage, which was getting a bit pointy from all the sanding. A bit more sanding and it's there.  I have realized that although I have plans and three  photos a lot of the fuselage contours will be educated guess work, i.e. where I have a picture or a detail  I'll follow it but the underside of the fuselage where it meets the wings will be complete conjecture, so hence the assertion that this will be more of a homage than a 100% scale model. Anyway pleased with how this is going.

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The Snark even more nearly there.  I Think the section above the wings should be more cuirved but otherwise it looks pretty good to me.

 

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Some Pfalz blanks, including a Miliputted (not a verb I know but I like coining new ones or using George bushisms like misunderestimeted :) isnt etymology great (thats etymology not entomology which is bugs not words)) and re sanded cowl mold. (I'll have a go at a mold when #i do the Snark Fuselage.

 

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Can I suggest that when carving a fuselage to section, it's best to leave yourself a "handle" on the blunt end of the blank, Holding this temporary extension makes the whole carving operation much easier. It can also be held in a vice or clamp which leaves both hands free to control the cutting tool. I much prefer a miniature draw knife or spoke-shave. The 'handle is the last thing to be removed. 

 

I also use a 2B pencil to mark the section positions along the spine and bottom so that the template can be placed in the right place every time.

 

In the case of this 'Spitfire' I would have made my blank about twice as long at the spinner end. This is a compilation from the superb book Aircraft in Miniature, by W.O. Doyland.

 

If you mark your centre and datum lines along the extended blank (handle bit included) before you begin, then once you start to shape the fuselage end of the blank you can put a ruler along the visible lines on the handle part and redraw them onto the carved area.

 

John

 

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Added wing roots (very hard to figure out the detail of the wing attachment to the fuselage from the drawings and pictures, these don't contradict any data I have, but by the same token  I don't have any good views of the area, however logically this is what I'd o if I were trying to mate a wooden monocoque fuselage to a spar and rib fabric covered wing and it''s pretty similar to contemporary designs like the Pfalz or the Siemens Shuckert DIV) and made the forward fuselage a bit more cylindrical. Milliput to fill in overzealous carving again. Pretty much ready to be split and molded. I'll do the blank for the spinner first. 

 

I must admit the carved basswood does feel silky smooth and won't need any grain filling before molding.

 

The carving of  this one was pretty much handled as per the diagram but I used a shape gauge to check the sections not individual cutouts. Overall I think I found the method used for the Pfalz a bit easier albeit less skillful.  When next I do this I'll probably go for something in between the 2 methods.

 

I definitely could have done with a spokeshave or a very small woodplane. I did use a surform for roughing out the blank but it didn't work as well as I'd have liked.

Edited by Marklo
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  • 2 weeks later...

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This arrived in the post a Siemeiens Halske for the Pfalz. Scratchbuilding  radial engines isn't my idea of fun...

 

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And we have three Snark center section blanks. Profile sanded and ready for skinning. The lower one will be cut in two while the middle and top will have substantial cutouts. I'm using the wing profile of the Pup as A) I don't have that detail for the Snark and  I'm assuming that most Sopwiths of the era had the same wing profile.  I'm also going to assume that the cutouts are square cut ribs and not shorter chord ones, again this is similar to the PUP construction, 

 

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Now skinned. Just to confuse you all the middle one is the lower one which will be cut in two and very little will actually be used. The top one will be cut laterally hence the square trailing edge and the middle one will have a substantial cutout made.

 

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On a semi related note I came across this at the weekekn, the Austin Osprey, it competed with the Snipe for an RAF contract and didn't get past prototype stage, but I think it's a great looking plane, so this may become a quintet yet (or maybe an endless Triplane build, there.s still the Sopwith, the Albatross and many others out there, hmmm )

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  • 1 month later...

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Progress on the Snark (Mostly) Molded the fuselage and it went really well. Then realized that I had made the wings exactly one rib too narrow and that the chord is probably a millimeter or two too narrow,  hence the buff bits, which are where I checked how well the wing additions are blended into the original and the strips of card glued on tho the trailing edges which will be made good with milliput and copious sanding.

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And then disaster struck, not only were my wings too short they're too narrow, so here's the end result with an extra rib and extended trailing edges all milliputed up and ready for sanding, 

 

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Just to console myself I started on the Spinner/Cowl (I'm going to model 4070 which had a bullet nose with a very Albatros like spinner) here it is filled and ready for sanding, before trimming and making cutouts for the engine cylinders and the prop blades. This went well ::) 

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The Snark gets a nose.  Just needs some propeller blades and (probably) some better looking cylinder heads, the one I'm currently using is a Jupiter from the Smer Bulldog, or rather a collection  of unrecognizable blobs, but it's useful for cutting the cowling. Have to see what else the spares box holds....

Edited by Marklo
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Snark wings fixed and given a rough coat of Khaki Drab ( I find that undercoating with this followed by a top coat of AK PC10 gives a good finish, otherwise the AK paint takes many many coats)

 

I also started transforming the Smer engine from amorphous blob into recognizable ABC Dragonfly (hopefully)  photos to follow...

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  • 1 month later...
  • 2 months later...

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Now that I've (mostly) finished the Interwar trio and the Horsa this and the Snark will probably be my main builds. Cowling cut out. Needs a rub down but not too bad at all.

 

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Trimmed the fuselage shells started adding bulkheads and cut out (roughly) the cockpit opening. the Masking tape was used to transfer the outline from the plan.

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Some slightly less blank wing blanks and some bulkheads. Ready for skinning in 10 thou sheet ( i have sanded them quit a bit since I took the photo) . I'm trying to keep these thin,  The end result should be around 2.5mm at the thickest point which would be around  a scale 60mm.

 

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Some interior detailing, formers, stringers and a seat. Undercoated in Desert yellow, before I break out the oils. Just needs seat belts, pedals, a stick and some instrument faces. Should be ready to zip it up at the weekend.

 

Edited by Marklo
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  • 5 weeks later...

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Zipped up but I realized I had made the rear fuselage a bit shallow, still after some Milliput and copious sanding, looking good.

 

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Started assembling my Siamens Halske.  It's a tiny bit wider than the interior of the cowling so some fitting will be required.

 

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The Pfalz gains legs, or at least a   tail, some wing roots and wings. Need to add some roots for the mid wings before I permanently attach them. 

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