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Dan Vadas

Rolls Royce Merlin Engine for Spitfire by Dan Vadas - Alin Osarik design - 1/33 scale - Card

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Hi all,

 

Here's a tricky build. It's a 1/33 scale attempt at a Rolls Royce Merlin engine to be displayed as a "stand-alone" model next to the Mk. IX Spitfire I built. It's a design by Alin Osarik and a downloadable copy of it can only be found on THIS SITE.

 

As far as I'm aware no-one has successfully managed to build one at this small a scale, and no wonder - some of the parts are TINY :D . All other builds I have seen have been blown up to 1/16 scale. But I'll have a go :D .

 

Here's a pic of the parts. They come on one page, but there are a further 34 pages of step-by-step rendered photo instructions :

IMG_5780.JPG

 

One example of the size of the parts :

IMG_5781.JPG

And this is what I've done so far. This is the start of the engine compartment framework that supports the engine. It's been designed to fit inside the Halinski Card Spitfire, which may be a future build for me as I have a 2nd model Spitfire that came with the original kit that I've already built.

IMG_5782.JPG

 

Danny

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2 hours ago, pontiachedmark said:

Gidday Danny.

I'm coming along for the ride.

My failing eyes preclude me from building anything on this scale.

I wish you all the best in your endeavours,

Mark.

I dont think its to do with scale. Its to do with the actual size of the model... 

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7 hours ago, maaaslo said:

well, I might ruin your day...

 

http://www.papirove-modely.cz/galerie/418

 

 

No Pav, it didn't :D . Thanks for the link, but it's not actually the same one that I've downloaded even though it appears to be the same model engine and at 1/33 scale. That one looks like a scratchbuild, and a well done one at that. Just a pity that there weren't more pics.

 

And a welcome to all you guys as well :) .

 

Danny

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1 minute ago, Dan Vadas said:

No Pav, it didn't :D . Thanks for the link, but it's not actually the same one that I've downloaded even though it appears to be the same model engine and at 1/33 scale. That one looks like a scratchbuild, and a well done one at that.

 

Danny

no Danny. those are Alin's engines... no scratch. Bernie is in a class of his own. same as Doris, he is well known for his mastery. maybe not in the Oz, but in Central Europe his name means quality work...

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15 hours ago, popeye the sailor said:

is the other spitfire the same scale as the engine?  are you planning to install it?

Yes it is Popeye. If I build the 2nd Spitfire I'll build another engine as well and install it. However it might be a while coming, as I already have the next kit to follow after this build. More details on that one will be coming when I finish this one :) .

 

Danny

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A welcome to all that are following this build :) . I hope I can do it justice.

 

I reverse-printed a sheet of parts and laminated a backing piece to the firewall and side frame pieces. The firewall piece is not strictly accurate, but it's better than a simple white face. Cutting the holes out of the framing sections took a lot of care :

IMG_5784.JPG

IMG_5783.JPG

 

Next I detailed the firewall. The back side :

IMG_5789.JPG

 

And the front. I used 0.2mm soft brass wire for the tubing :

IMG_5788.JPGIMG_5794.JPG

 

Some of the bracing for the framework was really tiny. These pieces are only 0.4mm wide at the narrow points :

IMG_5786.JPG

IMG_5787.JPG

 

Gussets added :

IMG_5790.JPG

IMG_5791.JPG

IMG_5792.JPG

IMG_5793.JPG

 

Danny

 

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After gluing the framing to the bulkead I painted all the brass and touched up the edges using Acrylic mixed on a pallette :

IMG_5795.JPG

IMG_5796.JPG

IMG_5797.JPG

IMG_5798.JPG

IMG_5799.JPG

IMG_5800.JPG

 

I almost forgot two lines. I'll touch them up next time I mix up this colour, as well as any small bits I missed. That will finish the framing part of the build. Here's a pic for size reference :

IMG_5802.JPG

Next up I start the engine itself.

 

Danny

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4 hours ago, CDW said:

The color of the paper parts is outstanding. Are the parts printed on a home printer or in a print shop?

Both, and there's no noticeable difference. I made a spare on my home printer.

 

Danny

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The cool thing about the Merlin is how much more efficient it was than its German contemporaries. It only displaced ~27 liters, whereas the DB 601 was ~34 liters, DB603 ~45 liters, the DB 605 ~38 and the Jumo 213 ~ 35 liters. All of them weighed considerably more than the Merlin and in most cases were still at a slight HP disadvantage at most points in the war.

 

Good luck Danny, looks like you will need it :)

 

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45 minutes ago, Dan Vadas said:

Both, and there's no noticeable difference. I made a spare on my home printer.

 

Danny

Which model of home printer are you using Danny? Factory ink I presume?

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14 hours ago, CDW said:

Which model of home printer are you using Danny? Factory ink I presume?

Epson XP-520 with cheap aftermarket ink :) .

 

8 hours ago, amateur said:

That is small.....

what is the thickness of cardstock you use? 

0.25mm Ultra Premium Matte Photo paper for the printed parts, the same for single laminations and up to 0.5mm and 1.0mm for thicker laminations depending on the part.

 

Danny

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23 minutes ago, Dan Vadas said:

Epson XP-520 with cheap aftermarket ink :) .

Wow, that is amazing Danny. I would'a never thunk it (the cheap aftermarket ink). What a pleasant surprise. The Epson printer is what I have, too. Never would have dreamed it could print so well as that.

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Thank you for all the comments and "Likes" :) .

 

The first part of the engine in the instructions is the Supercharger. I've nearly completed it below :

IMG_5803.JPG

 

These parts took me a while to cut. So far I've come across four similar ones, all turned out fine with no accidents despite some of them being only 0.35mm wide :

IMG_5804.JPG

IMG_5805.JPG  

The supercharger finished :

IMG_5806.JPG

IMG_5807.JPG

 

I reinforced the engine block with some 0.5mm card :

IMG_5808.JPG

 

Another tricky piece :

IMG_5809.JPG

 

The cylinder heads took quite a bit of work due to the "bumps" on the sides :

IMG_5810.JPG

 

The oil pan :

IMG_5811.JPG

IMG_5812.JPG

 

Danny

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