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F-86A Sabre Montana Air National Guard

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dirk tinck05/04/2020 14:40:23
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590 forum posts
822 photos

Hi Harry , the canope frame was send friday . A few day's later than the plan due to restrictions here .

Harry Twist06/04/2020 23:03:34
356 forum posts
270 photos

Hi All, I thought it was time for an update of my build blog!

Firstly, Dirk thanks for the canopy frame, I look forward to receiving it, its great to add scale details where possible on the build.

So, I have virtually finished the wing - both halves joined, leading and trailing edges added, torque rods in, and wingtips added. Just need the aileron robart hinge locations cutting in, The wing is almost sanded to final shape, some further careful sanding should see it pretty much done with the exception of the belly pan area.

With regards to the fuselage, I've shaped and added the uniquely Sabre nose piece, I did need to add a spacer to get a good transition from fuselage to nose, but that was an easy fix. Once the nose is fitted, the fuselage finally starts to look like that of an aircraft!

In addition I've begun to tackle the tail area, starting with the tailplane horn, then onto shaping the side cheeks (which I had some fun with in trying to get a good fuselage fit!). Finally I have reprofiled the jet exhaust area to adjust the curve profile ( like Phil C has done) and begun the blending process to acquire the desired tail area shape.

Next jobs involve continuing to work up the tail area, fin and the all moving tailplanes.

Best regards to all.

Pictures to share....

Ice hockey mask or Sabre nose?

img_20200326_152746008_hdr.jpg

Tailplane horn/ pushrod mechanism

img_20200402_153033856.jpg

Nose in situ

img_20200406_220325857.jpg

Tail area in process

img_20200406_220350859.jpg

Wing nearly complete.

img_20200406_220458759.jpg

Steve McLaren07/04/2020 21:25:15
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248 forum posts
257 photos

You seem to have a good shape on that nose Harry. I'm not happy with mine yet. It looks OK from some angles but not from others. Might need to get he filler out again!

I'm struggling with the tail shape too. It doesn't seem to be circular enough or tall enough at the rear to get that ramped bit right under the tailplane fairings and above the jet pipe. Or is that just my build?

Phil Cooke07/04/2020 23:01:05
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2551 forum posts
1796 photos

Mines not fully round either Steve - not tall enough to be fully round somehow, not possible whilst keeping a constant wall thickness on the fus around the exhaust.

Harry Twist08/04/2020 22:43:56
356 forum posts
270 photos

Hi Steve, yes I've found the tail area a little tricky to shape! There's one detailed image of the tail area on the plastique fantastique website - F86 walkround which I studied for a long time. Here are three shots I took as I carved the tail away. its not finished yet and needs tidying and also its not quite the right shape but its on the way. The holes are weight saving holes (!) I had previously drilled in F10 during fuselage assembly, this will eventually have a blanking cover over it. I also looked at Phil C's tail shots which I think are very helpful with the shaping.

I'm slightly worried about creating too thin a wall thickness for the tailpipe. Hey ho!

Tail area before working on jetpipe

img_20200408_113729750.jpg

Marked up for cutting and carving

img_20200408_114436112.jpg

Partly completed, F10 visible with holes!

img_20200408_160901177_hdr.jpg

Phil Cooke08/04/2020 23:13:31
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2551 forum posts
1796 photos

Excellent stuff Harry - loving all these scale details! thumbs up

McG 696909/04/2020 07:51:39
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3177 forum posts
1199 photos

Nice progress, Harry. yes

... your white garden stone looks a little like a block of EPP... wink

Cheers

Chris

Andy Meade09/04/2020 09:58:42
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2764 forum posts
717 photos

Looking great that, Harry. Great weather for some garden based carving!

Steve McLaren09/04/2020 21:17:38
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248 forum posts
257 photos

Blue skies in Glossop! Strange times indeed!

No seriously, seeing how you've done the rear end is a big help. I think I can do something similar. I will make an attempt tomorrow whilst you're mowing that lawn!

Harry Twist14/04/2020 22:11:43
356 forum posts
270 photos

Hi All, Ive been working on the wing to fuselage fit, as a result I've modified the wing mounted ply plate so that it sits within the belly pan area and basically forms part of the belly pan (the result is a plate that is a bit narrower than on the plan).

In addition I've been pondering how to locate the front dowels accurately on the wing front ply plate. I came up with a little jig that helps locate the hole centre's prior to drilling the wing for the dowels.

Basically you need: a couple of short scrap lengths of 6mm dowel, each at approx 10mm long, two panel pins and a small piece of very thin ply (1/64th inch or alternatively thin stiff card would do).

Pictures hopefully explain!

Tap the pins gently into the short dowel lengths, they need to exit at the dowel centre's ( may need a couple of goes to get right!). You only need two or three mm of the pin point to pass through.

img_20200414_143623376.jpg

Mark up the ply plate (sit it in the fuselage and mark the fuselage dowel centres) then tap the pin head/dowel combination through the ply and superglue into location.

img_20200414_212402110.jpg

 

Locate the jig in the fuselage:img_20200414_144107596.jpg

 

Introduce the wing towards its location, gently push it onto the jig and if careful you will get the pin heads to give you the dowel centre's for the intended dowel holes in the wing plate. On removal of the wing, the jig may even come away attached to the wing front.

img_20200414_145728971.jpg

 

Drill the wing and locate the dowels.

img_20200414_155906716.jpg

 

Modified wing bolt plate, to sit within the belly pan

img_20200414_145403034.jpg

 

 

 

 

 

 

Edited By Harry Twist on 14/04/2020 22:12:06

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