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Marutaka Ju87B

Stevo finally gets on the case

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Adrian Smith 125/08/2017 23:02:19
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1708 forum posts
535 photos

Cracking job there Stevo!. Keep up the good work.wink

Stevo28/08/2017 17:48:09
2699 forum posts
419 photos

Thanks Adrian

The horizontal stab is done, apart from fettling the recess so it is symetrical so the elevator sits in the middle of the stab, and those pesky Robart hinges of course.

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Stevo28/08/2017 17:53:56
2699 forum posts
419 photos

OOps... hang on.. just seen the picture of the elevator... no wishful thinking..

so heres a plan view..

2017-08-28 17.50.48.jpg

Stevo02/09/2017 17:47:47
2699 forum posts
419 photos

Bump!

It's Stuka time

Horizontal stab almost there, here's the elevator brace, silver soldered to the control horn

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Andrew Price 202/09/2017 21:03:15
796 forum posts

Signing in.

Stevo02/09/2017 21:09:13
2699 forum posts
419 photos

Good to have you looking in Andrew

Stevo28/09/2017 18:04:02
2699 forum posts
419 photos

After an affair with an ARTF, I'm now back on it.

Elevator linkage glued in and fettled...

2017-09-28 16.04.22.jpg

I'll trim the fill in strips later.. I cut a couple of holes to drip some epoxy in to secure the link..

And now the fuselage. And what a feat of engineering this will be - in decyphering the drawings!

 

Two front halves cut from 3.2mm ply. I cut some holes to make it look cool..

2017-09-28 17.33.59.jpg

So.. how? Cut one half exact to drawing by hand, and cut out the holes.. Double sided tape it to the other.. run it through a table router with a template bit... then two halves!

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As Balsa Cabin did not have the long sections of beech, I machined up some 15 x 18 oak. Same density as beech. Here's one side being epoxied on...

2017-09-28 17.49.27.jpg

Edited By Stevo on 28/09/2017 18:05:22

Stevo29/09/2017 19:57:35
2699 forum posts
419 photos

More done. As best I can, I printed off all the bulkhead detail after adjusting it for size to fit the drawing.

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Then mark the cut lines: -

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Just an application of the bandsaw and disc sander. The router helped get the lines straight, however the kerf of my table saw was around 3mm anyway, so I used that rather than the router.

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A good fit.

2017-09-29 12.59.42.jpg

At this stage the cat was bored and decided to get stuck into the plan, literally...

2017-09-29 14.44.41.jpg

 

So here is the complete sub assembly. glue up tomorrow...

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Edited By Stevo on 29/09/2017 19:59:46

Stevo01/10/2017 13:55:24
2699 forum posts
419 photos

C'mon guys... keep up. Any interest?

The following is really self explanatory. The front assembly cut out and glued together, placed on the SLEC jig, straightened etc...

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Servo mountings for elevator and rudder (Closed loop)

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Tank.. removable plate underneath, otherwise there's no way of getting to it.

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Final assembly

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And on the wing, nice 'n' square

2017-10-01 13.43.50.jpg

Martyn K01/10/2017 14:14:04
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4337 forum posts
2962 photos
Yez. Deffo folliwing this with intetest as its on my to do list. Its superb work Stevo. Keep it up
Stevo21/10/2017 19:33:10
2699 forum posts
419 photos

Some more done, The photos tell the tale. Closed loop on Rudder, snakes for tailwheel and elevator. The inners are 2mm piano wire, a nice smooth fit into the outer. The tailwheel is a modified version of the Blackhorse Stuka version, which is sprung to a limited extent. I had to make it attach to the snake internally... alas in the Blackhorse version, it attaches outside the fuselage - sacriledge. The sides are actually on and shaped, I made the vertical stab and rudder today as well.

Enjoy.

2017-10-14 17.52.35.jpg

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Stevo21/10/2017 19:36:44
2699 forum posts
419 photos

Vertical Stab.. skeleton..

2017-10-21 14.58.58.jpg

David Ovenden21/10/2017 20:44:26
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240 forum posts
3 photos

Stevo, great to see your progress on this. As ever, lovely craftsmanship. I am watching, enjoying and learning from your build log. You are not posting in vain!

john stones 121/10/2017 20:51:42
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8729 forum posts
1375 photos

Oh not another build blog !!! face 1

Looking very good Stevo, not much to say coz you're better at it than me. yes

fly-navy21/10/2017 22:22:54
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363 forum posts
11 photos

Your usual neat and tidy build young "Steph", pleased to see you back in shed and sharing.

Wish I could get motivated, this blooming wind we have been having most of the year I look outside and think whats the point of building anythingsad

onetenor22/10/2017 01:37:48
1302 forum posts

That cat is the spit of our Umbra and just as daft it seems though Umbra will 30 on Nov 5th. But she plays like a kitten.

Tom Thomas22/10/2017 04:23:37
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224 forum posts
185 photos

im not an inexperienced builder as terminology goes, but the following had me stumped.

" however the kerf of my table saw was around 3mm anyway, so I used that rather than the router.

I've never used a table saw nor have I adjusted its "kerf" ?

 

Edited By Tom Thomas on 22/10/2017 04:28:49

Stevo22/10/2017 11:51:09
2699 forum posts
419 photos

Tom... The 'Kerf' is the width of the saw blade...

here...

SteveJ

Stevo22/10/2017 11:57:48
2699 forum posts
419 photos

Here's some tail detail. That complex contour round the fuselage / tail has caused me sleepless nights... I need more Permagrits!!

2017-10-22 11.07.17.jpg

Rudder...

2017-10-22 11.07.22.jpg

Shaping to be done... heart in mouth!

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A peek inside... you can see the piano wire control rod

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Closed loop exits

2017-10-22 11.14.34.jpg

Mike T22/10/2017 14:16:04
257 forum posts
19 photos

Prompted by your Build Thread thread, I thought I'd pop in and look at your, er, Build Thread!

Superb workmanship on what has to be the best looking ugly aircraft, ever!

But - tell us more about those wooden lever clamps. DIY jobbies? I'd like to have some of them!

 

Edit:  Just found 'Luthier clamps' on Youtube - off to spend a few hours there!

Edited By Mike T on 22/10/2017 14:22:25

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