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Sig Spacewalker II 1/4 scale

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Old 07-13-2013, 06:25 AM
  #351
VincentJ
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Default RE: Sig Spacewalker II 1/4 scale

Thanks Tom, I really like the aluminum tape around the windscreen, thanks for posting a picture.

Today I opened the box that my landing gear came in. Maybe I should back-up a little, I don't intend on using the stock pre-bent wire that is supplied in the kit. (Not that there's anything wrong with it) Instead I am fitting an articulating gear that Robart makes for their 1/4 scale Cub. I liked it so much I thought it would be a nice addition to the Spacewalker. Of course it won't fit right out of the box, it wasn't designed for this plane. With some minor modifications I can make it fit!

So getting back to the beginning, after opening the box I unpackaged everything and took inventory to make sure I wasn't missing any parts. Then came the fun part...assembling it. I was pleased that everything went together pretty easily, some minor grinding had to be done to get the gear to articulate, but no big deal. You can see what it looks like after it's assembled. Now it's time to fit it to the Spacewalker!
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Old 07-13-2013, 04:28 PM
  #352
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Default RE: Sig Spacewalker II 1/4 scale

This is all coming together very nicely, Vincent. I just love the quality of your builds. As a side note on wing bolts and locating them..I have used doweling centers with good results. Works for me anyway. Carry on!
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Old 07-13-2013, 07:07 PM
  #353
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Default RE: Sig Spacewalker II 1/4 scale

Vincent, (Everything is looking great) could you expand a bit on what mods had to be done on the Robart gear to make it fit? I am just wondering how intense the mods were, I see that gear set is not cheap! I am really interested to see what it looks like on the Spacewalker.

By the way, I should be able to post a couple pics of my trailer tomorrow. Mind you its not "done", but it should be at a point that I can start using it........its supposed to be about 92 here all week (hot and humid), so I will be working in the basement this week getting some planes finished up to put in it!

Dave
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Old 07-14-2013, 01:57 AM
  #354
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Default RE: Sig Spacewalker II 1/4 scale

Thanks yel914.

Dave, sorry I didn't take any photos during the process but I'll show you now how I did it. The hardwood mounts were abandoned and I fabricated new pieces from Basswood that didn't have a groove in them for the landing gear wire. The blind nuts and bolts were too close to the wing alignment dowels for my comfort if I had used only a one piece front mount, so I decided to raise the whole set-up a bit. This meant making the front mount two separate pieces, the base which you can see and the upper half which is an additional 1/4" in thickness. By adding the second layer I was able to recess the top of the first mount in order to accept the blind nuts without it interfering with the wing dowels. I used a 5/8" Forstner bit which gave me a nice flat bottom recess for the blind nut to sit into. Both halves were then epoxied together, as an added bonus the blind nuts did a nice job of also aligning and locking everything together. This did raise the whole assembly up a bit, but it will work to my advantage as it will be more in level with where the rear mount will have to be placed. I will transition the front mount into the wing with a balsa block. You can see where the rear mount will need to be relocated. The mount will be epoxied to the rear spar giving it plenty of support.

Also shown are the wing alignment dowels. I sharpened one end of the dowel and slid them through so the pointed end just stuck out of the backside of the ply wing hold down straps. I then slid the wing forward into the pointed tip of the dowel making a nice indentation as to where the receiving holes needed to be drilled. It is worth mentioning that I never epoxy the dowels into place at this time. What's the rush? It is so much easier to put your covering on then epoxy the dowels into place.
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Old 07-14-2013, 01:43 PM
  #355
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Default RE: Sig Spacewalker II 1/4 scale

If anyone is interested, due to the 500 error, I couldn't post pics of my trailer progress either, so I put them on a FG form here: (You will have to fix the URL......

http://www.f*****g*****.com/forums/s...80#post1995841

Dave
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Old 07-14-2013, 02:20 PM
  #356
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Default RE: Sig Spacewalker II 1/4 scale



LOL!!! I would like to know what RCU's problem is with FG.

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Old 07-14-2013, 02:34 PM
  #357
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Default RE: Sig Spacewalker II 1/4 scale

Flying giant, flying giant, flying giant, na na na na na go ahead delete it if means that much to you. Who cares if we use other forums or even mention them this is childish. What? do they think that nobody goes anywhere else other than RCU Ok back to building
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Old 07-14-2013, 03:48 PM
  #358
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Default RE: Sig Spacewalker II 1/4 scale

And BTW, FG is not only a 3D ARF site either.  One gentleman is building a scratch 256inch B-36 there.
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Old 07-14-2013, 05:43 PM
  #359
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Default RE: Sig Spacewalker II 1/4 scale

Just as a side note, I have seen others post links to FG this way, I just followed suit. I am not sure if RCU would have changed the link or not allowed it. I didn't mean to start a controversy.

~D
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Old 07-15-2013, 03:39 AM
  #360
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Default RE: Sig Spacewalker II 1/4 scale

Ok now that we're back in business let get to it. Before installing the rear hardwood mount for the landing gear the receiving area needed reinforcement. You can see the light ply riblets sistered along side each of the ribs for strength. With that done, I made the mount to fit and epoxied in the blind nuts into place. Each blind nut had to be trimmed a bit to give way for the adjacent spar. The mount was epoxied into place and left to dry.

In the morning I was eager to see how the landing gear would look mounted, so here are some photos with legs under the Spacewalker...I like the way it looks and it articulates very well.

Note: If you look carefully in the first photo you will see two pieces of scrap balsa sheeting that I glued to the inside of the top of the wing. I like to add these as they will have the servo leads holes drilled in that area and I like the additional thickness and strength that it provides.
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Old 07-15-2013, 05:39 AM
  #361
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Default RE: Sig Spacewalker II 1/4 scale

Wow Vincent, do you ever sleepMan you are making some big time headway on his thing. Ishould have been a teacher. The way this summer is going it's like having a 2nd building season. Looking at at another 95-100 deg week and 70% humidityI found some nice grommets to use on my last build to put in the holes for my servo leads, looks real good and keeps them from breaking out. I like the cub gear, there's a guy on here from NHselling scratch built ones for around $115.00 Funny thing when I spelled FG with the S and posted it it all that showed up was ***** in place of the words, had to remove the S to get it to show upThey really are a little anal on this site.I take it you have not had a chance to take Private Ryan for a ride yet? Keep up the good work, we can onlywatch and drool with envy
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Old 07-15-2013, 05:53 AM
  #362
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Default RE: Sig Spacewalker II 1/4 scale

Thanks Cliff. I use rubber grommets as well my servo leads. Makes a nice clean look as well as the no chaffing of the wires... No flight on Private Ryan as of yet. Yesterday I did get out and finally enjoy a day of flying, the weather actually cooperated![8D] I am building quite a bit, but it doesn't take up all my time. Here's a photo of a patio that I just completed building...

Teaching does have its advantages, summer being one of them. I feel truly blessed to be in a profession that offers me the time to have a life! There are disadvantages however...I hope to be on the five year plan if everything goes right!
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Old 07-15-2013, 06:01 AM
  #363
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Default RE: Sig Spacewalker II 1/4 scale

Looks like those gear were made for the SW. Nice work VJ!
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Old 07-15-2013, 07:02 AM
  #364
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Default RE: Sig Spacewalker II 1/4 scale

Nice patio, knowing NH like I do I bet you did not have to go far for those rocksMy wife has 4 more to go to get her 30 in How are the black flies this time of year? Up at my brothers in Plymouth they have been seen carrying off small children
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Old 07-15-2013, 08:29 AM
  #365
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Default RE: Sig Spacewalker II 1/4 scale

That gear looks sweet Vincent, looks like its supposed to be there too!

I tried to repost that link, it does add the **** for the FG website..........nice

Dave
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Old 07-15-2013, 12:35 PM
  #366
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Default RE: Sig Spacewalker II 1/4 scale

Thanks Dave, it was a little bit of work but I think the enjoyment that I will get watching the gear articulate on landings will be worth it!

Bottom of the wing has been sheeted. After some sanding , I will put on a two inch fiberglass strip further reinforcing the wings center joint. When that is completed I want to fit a balsa transition piece that will make the gear hardwood mounts blend into the wing a bit better...I'm getting there!
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Old 07-15-2013, 01:01 PM
  #367
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Default RE: Sig Spacewalker II 1/4 scale

Very Nice,
I will have to how it will work out on the 1/3 scale. The wing is in 3 pieces and hopefully the gear stay inside the wing joints. I want to put a set of these gear on my 1/3 Cub as well. I think this winter is going to get expensive.
Later!!
Anthony
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Old 07-15-2013, 02:55 PM
  #368
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Default RE: Sig Spacewalker II 1/4 scale

Thanks Anthony, I'm sure you'll find a way to get it to fit.

Still had some energy left so I decided to put the 2" glass strip on tonight. The tape used was more of a guide line to keep me straight more than anything else. The tape is removed once the glass gets covered in the Finishing Resin. That's it for tonight!
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Old 07-17-2013, 02:41 AM
  #369
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Default RE: Sig Spacewalker II 1/4 scale

Made a filler/transition piece that I think blends the mount to the wing better... Need to fuel proof the inside of the gas tank area before I cap off the bottom.
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Old 07-17-2013, 03:31 PM
  #370
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Default RE: Sig Spacewalker II 1/4 scale

Fuel tank area has now been fuel proofed using Z-Poxy Finishing Resin. After it dried I went to work capping off the bottom piece as you can see. More sanding is required, but I think the landing gear now look like they belong on this plane and not just "added on".

It was brutally hot here so I welcomed working in the basement today. I don't know how high the temp got, but I did see the local thermometer on our bank read 96 degrees at ten this morning! [X(]
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Old 07-18-2013, 02:57 AM
  #371
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Default RE: Sig Spacewalker II 1/4 scale

You're right. The landing gear does look like an integral part of the airframe's design.

Nice work !
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Old 07-18-2013, 03:57 AM
  #372
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Default RE: Sig Spacewalker II 1/4 scale

Looking Good VJ,
Have you decided on the covering and finish yet? I am going to go with fabric and Klass-Kote as you may have expected. I may not do the rib stitching and tapes on this one. Just want a stress free plane to fly that I don't have too much time and $$$ in. Never know though, I already have the stitching and half the tapes and I do have a tendency to get carried away.

Later!!
Anthony
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Old 07-18-2013, 04:10 AM
  #373
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Default RE: Sig Spacewalker II 1/4 scale

Wow, you got a fantastic fit to the wing on that landing gear mount. Thats always a difficult task to get filler blocks on a wing and match the fuse as well as the proper dihedral angles to get a good fit. Nice work as always.

Oh, and the maiden voyage for the new trailer is this weekend, looking forward to it!

Dave
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Old 07-18-2013, 06:30 AM
  #374
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Default RE: Sig Spacewalker II 1/4 scale

Does anyone have a pattern for the windshields they could scan and share with me? A friend bought a SWII and it is in good shape, just missing windshields.
Thanks in advance,
Bryan
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Old 07-18-2013, 06:48 AM
  #375
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Default RE: Sig Spacewalker II 1/4 scale

Bryan, PM me your address and I'll be happy to send you the pattern of the windscreen.
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