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Siemens-Schuckert D.III 1/3 Scale

Old 11-24-2010, 09:02 AM
  #26  
Tmoth4
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Default RE: Siemens-Schuckert D.III 1/3 Scale


ORIGINAL: abufletcher

You make it all look so effortless!
After the Gotha bomber, everything else seems easy!

Jim
Old 11-24-2010, 11:14 PM
  #27  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Jim I just found your thread, nice project, unusual aircraft. I will be following along.

Rich
Old 11-25-2010, 08:40 PM
  #28  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Too cool Jim
Doc
Old 12-01-2010, 07:29 PM
  #29  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Everyone stay in your seats and no one gets hurt. This is a high jack!!! Now that I got that out of the way, I have the greatest wife in the world! She said I was getting kindof stressy with all the Holiday, to much work, blah, blah, blah, and that I should take a day off and play in my shop. So I took a personal day and this is what I did. Photo 1 is the initial box, Photo 2 is the tube with the box and formers on it, Photo 3 is the fuse with stringers added, Photo 4 is the fuselage 3/4 sheeted, Photo 5 is the center section ready to sheet. Elapsed time, a few minutes under 7 hours. I found some minor issues with a couple of notches (Jim, I will describe in a PM) and I some how didn't cut a couple of 1/4 round formers for the bottom (oops, I will be mailing those Jim). Overall, went smooth and almost builds itself. To those with parts coming, corrections and omissions will be resolved.


Editing pictures as some weirdness occurred during posting.
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Old 12-01-2010, 07:46 PM
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Still weirdness all files are only 68Kb
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Old 12-01-2010, 07:47 PM
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Default RE: Siemens-Schuckert D.III 1/3 Scale

last
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Old 12-01-2010, 07:55 PM
  #32  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Such a fascinating (and super light) way to build a sheeted fuselage! [sm=thumbs_up.gif][sm=thumbs_up.gif]
Old 12-01-2010, 08:12 PM
  #33  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Hey DJ, what happened to the Spad 13 project?
Old 12-01-2010, 08:15 PM
  #34  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Hi John, it's still moving forward. Just needed a small break.

DJ
Old 12-01-2010, 08:29 PM
  #35  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Dave,

I was at Lowe's today and I forgot to pick up my aluminum tube again.

Did you assemble that fuselage on the floor?

Jim
Old 12-01-2010, 08:35 PM
  #36  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Hi jim, Yes.... Sort of. I did all the stringers with it sitting vertically as in the picture. I sheeted it with the plane sitting on my lap sitting cross legged. That is how I usually work on these types of fuselages, also, My benches are coated in SPAD XIII stuff.If you are worried about being true, don't, the tube keeps everything straight. Just make sure your formers are square to the tube before gluing the stringers in place. Each panel is individually cut. Make them about an 1/th inch oversize and knockem down and bevel to fit with 80 grit on a T sander.

DJ
Old 12-02-2010, 05:18 AM
  #37  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

I was wondering about twisting, but then I realized once the stringers are joined at the tail and with the tube, it can't twist.

Are those sheets full fuselage length, or do you have butt joints over any of the formers?

Jim
Old 12-02-2010, 05:37 AM
  #38  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

DJ, I know what you mean about needing a break but you must be getting old because I never heard you say that before. I don't know what Jim's secret is. How about it Jim how do you keep bouncing from one project to the next? I know that Spad is going to push you over the edge Dave. The framing is always quick and fun. Trying to get to the finish is always the killer for me. Lucky for you Jim the SSW D.III doesn't have that much detail. You will have it done in no time unless getting a cowl and spinner slows you down. Oh ya and then doing a eleven cylinder dummy engine. Jim, are you going to use a belt drive system? That would be the best with a big four blade prop!
Old 12-02-2010, 05:54 AM
  #39  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

For me, taking a break is working on a different plane. Right now I'm detailing the Gotha bomber, but I'm going to need a break from that one soon, and I'll get back to this one. I hate detailing. I love the results, but it seems like there's so much time spent for so little progress when you're doing it.

I'm going with a direct drive and two-bladed prop. I don't want to mess with a belt drive and four-bladed prop. Maybe I will retrofit it later.
Old 12-02-2010, 06:20 AM
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Jim, each piece is butt jointed over formers and stringers, that way it looks "right" when done as you see in the pictures, the contour changes ever so slightly from panel to panel, oh yeah, and you also get panel lines in the right location. It looks tedious but actually goes quite fast and it's fun to see the fuselage "grow" piece by piece. Loke Jim, my breaks usually consist of something else. I bounce back and forth between micro models and giant scale.

DJ
Old 12-02-2010, 06:45 AM
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Dave,

Isn't the 1/8" former kind of thin to be doing a butt joint over? What glue are you using?

Jim
Old 12-02-2010, 07:55 AM
  #42  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

It sounds thin until you do it. It is very easy to hit, you also have the panel joint to joint strength, Once stained inside, Go back and put a glue fillet on the joint. I use Great Planes Thick CA for all my sheeting with their Aerosol Accelerator.

DJ
Old 12-02-2010, 09:27 AM
  #43  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

JohnF, I may try a belt drive for this plane.

J
Old 12-02-2010, 10:35 AM
  #44  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Looking great guys....I haven't made a decision as to power plant as of yet. You fellas are crank'in right along. I hope I hear something about the cowlings soon[sm=angry_smile.gif] I ordered them in Sept. Have a great day.

B.
Old 12-02-2010, 08:21 PM
  #45  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Hi J, Have you made any progress with a belt drive for the 65cc, 4-stroke, Sthil? Plenty of room in that cowl.
Old 12-02-2010, 08:53 PM
  #46  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

I am still in the process of going through what I want to do (in my mind and on paper). Since the full size SSW had a "spider cage" up front, I was thinking of making a unit more akin to the old Byron unit rather than the Reeves and other German units. That is, I'd have a long drive shaft running from the firewall up to the hub (supported by the spider cage) and then have the engine offset driving the pulley in between the firewall and the hub. I certainly won't make a final decision until I look at the plans and see what sort of space I have to work with.

J
Old 12-15-2010, 12:50 PM
  #47  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

One thing I do need to know is how much more power a four-bladed prop requires. Let's say I have a 30x12 two-blade and a 30x12 four-blade. How much more power would the four-blade require to turn the same RPM? Anyone know off the top of their head?

TIA

J
Old 12-16-2010, 05:07 AM
  #48  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

J, DJ might be able to help with that. I remember we used 20x6 or 8 four blades that he made on a 2.4 Brisson for the 1/4 scale SSW D.III's. I don't know how he figured that size would work. I don't believe the length of the prop plays a big roll in the equation. Might be one of those things you have to do bench testing for to make sure you are getting the RPM/thrust you need. Could get expensive having four blade prop's made unless you can make them yourself by putting two, two blades together. DJ did that with MA, Schimitar's. I would think that with using a belt drive the ratio of the pully's would be more of a consideration. Mick Reeve's has a pretty good explanation on his web site in regard to figuring out what prop works best with his TorqueMaster system. If you e-mailed Toni Clark or Mick and explained what you are trying to do you might get your answer or pointed to someone who could help you.
Old 12-16-2010, 03:58 PM
  #49  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

I know what the engine will produce in the way of power ([email protected]) , so my thinking was that if I knew what the requirements were for a four bladed prop(as opposed to a two bladed prop), I could adjust the prop size and/or the gear ratio to get the results I seek. Since I will be making my own gear drive system it may actually be cheaper to machine multiple pulleys rather than testing different props. If my thinking is off, I'll blame my meds as I am recovering from bruised ribs and kidney.

J
Old 12-16-2010, 09:50 PM
  #50  
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Default RE: Siemens-Schuckert D.III 1/3 Scale

Sorry to hear that J. I think you better move this over to maybe engine conversions or something so it doesn't interferer with Jim's build thread.

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