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Author Topic: AVIA BH - 11  (Read 3805 times)
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billdennis747
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« Reply #50 on: March 22, 2019, 02:57:08 AM »

That looks astonishing Dave. It'll definitely run if you flick it.
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Squirrelnet
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« Reply #51 on: March 22, 2019, 03:03:42 AM »

Speechless....    are you sure it doesn't actually work ?
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LASTWOODSMAN
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« Reply #52 on: March 22, 2019, 03:28:51 AM »

Hi Dave -  your engine color scheme really allows the incredible detail to show through.

LASTWOODSMAN
Richard
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Yak 52
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« Reply #53 on: March 22, 2019, 05:12:30 AM »

Wow Dave!  Shocked Cool Cool
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OZPAF
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« Reply #54 on: March 22, 2019, 06:48:47 AM »

That is incredible Dave and I'm glad it leaves the model in the right CG ballpark. The cylinders and case are so realistic - but those exhaust pipe stubs are really impressive.

John
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Graham Banham
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« Reply #55 on: March 22, 2019, 08:52:21 AM »

Superb Dave: a work of art in its own right

Graham
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dputt7
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« Reply #56 on: March 23, 2019, 05:44:06 AM »

    Thanks fellas for your comments, I am pleased with the result as well and Bill I did try flicking it but it doesn't seem to have any compression  Grin
    Been working on the wheels today, because they are 3" diameter I had trouble finding a 4"sheet of balsa that was constant density across the full sheet to laminate them from. I found that unless the balsa is constant density the wheels end up with lumps and hollows as you form them in the drill. I ended up cutting the sheet and butt gluing the same edges together and that seemed to work. Photo 1   I've tried to simulate the fabric covered spoked wheels by making up a form and plunge moulding .015" plastic card covers. Photo 2and3  Its a bit hard to see but I think it shows up in Photo4
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THB
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« Reply #57 on: March 24, 2019, 12:48:39 AM »

Hi Dave, great progress, and good to get a chance to see it up close.
I said I'd have a look to see if I had a pic of how high the pilot sits when in the cockpit.
Couldn't find one - but did find a few pics of interest.
I would not be tempted to change your choice of registration for one of these...
Book is: 'Encyklopedie ceskeho a slovenskeho letectvi' by Vaclav Sorel - from which I may pick my next project...
cheers
Tim
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Tim
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ironmike
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« Reply #58 on: March 24, 2019, 11:45:39 AM »

Davey mate your model is a work of art.
Thanks for all of your "how I did it" lessons.
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dputt7
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« Reply #59 on: March 27, 2019, 03:00:27 AM »

Yes Tim I guess those regos aren't as funny in the Czech language.
  Thanks for your interest Mike, what have you got on the building board?
  Not much progress lately, hade a few paint issues that aren't really resolved yet, but I can see a small glow in the distance.   Finished off the wheels, cut off the wire axle so it came almost to the end of the tube in the wheel and soldered on a piece of tube with a hole in the end so I could hold on the wheel with a piece of wire. Photos 1 and 2. Photo 3 shows the wheel cover temporarily fitted.
  After an extensive search on the net I was able to find photos of an original Instrument panel, most show replicas or restored aircraft with modern instruments fitted. I was intrigued to see the Altimeter mounted on 4 springs and had to replicate that! The gauges and Artificial Horizon are made from plastic. With all that I need a 1/8th scale camera to be able to get low enough to photograph the panel once it's installed. The front cockpit in the original BH 11s have no instruments so that was a bit of a win.
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Pete Fardell
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« Reply #60 on: March 27, 2019, 03:40:02 AM »

Really nice u/c and cockpit work. This is going to be some model!
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LASTWOODSMAN
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« Reply #61 on: March 27, 2019, 11:13:21 AM »

Hi dputt7.  Those are really nice gages.   Shocked Shocked   Why was the Altimeter mounted on four springs?

LASTWOODSMAN
Richard
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« Reply #62 on: March 27, 2019, 11:30:05 AM »

Hi dputt7.  Those are really nice gages.   Shocked Shocked   Why was the Altimeter mounted on four springs?

LASTWOODSMAN
Richard

Ummm... vibration?

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dputt7
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« Reply #63 on: March 28, 2019, 02:37:57 AM »

   Thanks fellas, yes Richard vibration was my thought.
     
     I've made up floor for the crew to sit on, there is a problem with my design as you go process, you often have to redo some areas over. If I had remembered the crew I could have made allowances when laying out the fuselage sides but as it was I had to redo the top strut mounts, no big deal. I did a mock assemble and worked out a rear peg position that shouldn't need much if any additional weight.  Bent up and mounted a bamboo tailskid.
     Right, think I'm ready to cover, just got to go over it and see if I have missed anything.
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dputt7
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« Reply #64 on: March 31, 2019, 03:13:56 AM »

         Covered...…….. Grin
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THB
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« Reply #65 on: March 31, 2019, 07:31:27 AM »

Neatly done
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Tim
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« Reply #66 on: March 31, 2019, 08:24:35 PM »

Very nice Dave. You've decided to lighten it by leaving off one wing Smiley

John
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dputt7
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« Reply #67 on: April 03, 2019, 07:51:58 PM »

  Not enough room on my bench John.

  Painting underway.
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dputt7
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« Reply #68 on: April 04, 2019, 09:45:19 PM »

   2 hours masking, 2 minutes painting!
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dputt7
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« Reply #69 on: April 07, 2019, 04:49:33 AM »

 One of the main reasons for picking this version of the BH-11 to model was complicated signage that appealed to me.
    For my birthday last September my wife went halves with me to buy a Silhouette Portrait  Craft Cutter, after seeing them being used to cut tissue and even balsa on this forum, I decided they should work well cutting masks for spraying.
  For many years I have photocopied my rego letters and taped them over the top of Signmask then cut out the letters with a knife, this has previously been acceptable except I now find it more difficult to achieve good results.
         So the other day I got the Craft Cutter out of the box and not being too confident in my computer skills set it up.
I found it very easy to use for the simple job that I required, I was able to type out what I needed then simply cut out the letters. This model has different style letters for the fuse rego and the wing rego, The wing corresponded to a Font that was on the computer so that was no bother but the fuselage was unique so I found I could copy the small drawing I had then enlarge it 800%, import it to the craft cutter and size it to the correct size. Then it could be used to cut out the mask.
    After much fiddling and learning I was able to cut out the Aero Club and Oil signs, the main text is only 5/16th" high and the "oil" is 3/16th, quite amazing! I was then able to find the Avia emblem on the net and that cut out perfectly.
    It is a bit of a trick to get the paint just right so it doesn't bleed under the masks and very fiddily to fit the insides of the 'A's" and the "O's" but I am very pleased with the result and when it is nice and dry I shall see if I need to touch some of it up. Still more to go yet but more confident in that it will be OK.
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marcin_pl
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« Reply #70 on: April 07, 2019, 05:24:08 PM »

Dputt,

Please, correct the name of the city on the fuselage. It should be: PLZEN not PIZEN.
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piecost
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« Reply #71 on: April 07, 2019, 06:52:44 PM »

That is a stunning model. Did you stick the masks onto the surface?
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OZPAF
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« Reply #72 on: April 07, 2019, 09:09:07 PM »

Dave that sharp lettering is really striking on the red background. Masterful painting effort.

John
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Don McLellan
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« Reply #73 on: April 07, 2019, 11:28:02 PM »

Hi Dave,

Once again, mouth watering work!! 

Have to ask, what type of masking tape did you use for the fuse, and with what did you cut the stencil with your craft cutter?  (I don't see any paint seepage on the fuse, and the lettering on the fuse is beautify crisp).

Don
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dputt7
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« Reply #74 on: April 08, 2019, 03:22:51 AM »

Dputt,

Please, correct the name of the city on the fuselage. It should be: PLZEN not PIZEN.
                OOP's, sorry, correcting now.
    Hi Don,
               I use Avery Signmask,https://www.gamart.com.au/Products/Item/tabid/100/MASKABL.aspx  it's what I've used for years though previously I've cut the masks by hand. I can now buy it by the meter, previously I had to use a mates account to buy it from a Signwriters supply shop.  Once the mask is cut there is a film you can get that goes over the top to hold it flat while you remove the backing. This is not necessary but makes life a lot easier.

          Not sure what you mean by what did I use to cut the stencil in the craft cutter. I used the cutter that came with it and set it to cut "Sticker paper White" with the cut set to "auto'.  I can't believe how good this cuts, I've been trying to cut out a mask for the sign under the fuse and had to draw part of it with a .5mm marking pen, when I cut the mask the machine cut both sides of the line, .5mm, amazing, I'm so impressed!
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