1/350 Mike class SSN submarine 2 x tandem-rotating propeller set Mikro Mir

Description

I will combine shipping!  Add all the items you are interested into your cart and then request the total from me.
In this set, you get:
2 x tandem-rotating prop replacement screws for the Mike class SSN (Project 685 "Plavnik"), specifically the K-278, Komsomolets, as kitted by Mikro Mir (kits # 350-034), plus 2 x creeper motor screws.
The Mike's screws are different in that they aren't contra-rotating.  In fact, I initially drew these (and listed them!) not being aware of that mistake.  No, the Mike's props are fixed relative to one another and spin in the same direction (counter clock wise when looking from the rear towards the bow).  The screws have a keying feature (see image) to insure the relationship between the leading and trailing prop.  I also took the time to redo the creeper motor screws given the new research material.
Mikro-Mir's Mike kit screws are particularly bad, the idea being you place each individual photo-etch blade on the screw boss that's the size of a grain of rice.  And then you're supposed to do that for the creeper motor screws.  Good luck with that!
This is CAD designed and 3D printed. 3D printing allows extraordinarily fine detailing, and I feel the execution is superior to the awkward-to-assemble photo-etch versions.
Instructions on how to remove the screw from the sprue:
Given the thin section of the screw blades, some care will need to be taken when removing the screw from the sprue.  The resin is by nature brittle, but the sprue is thinnest where it attaches to the screw blade as it attaches at a point, by design.  The best practice is to place your flush cut pliers flush up against the bottom of the screw blade, at the point where the sprue attaches, and trim there.  Do not trim from the bottom, larger diameter end of the sprue.  I've found that the shock of shearing the larger diameter sprue at the bottom can ping the propeller blades right off the screw boss.  Work outboard to inboard, that is, trim the outboard sprues first, and then the inboard.  As the outboard sprues can obscure the inboard ones, after I've detached it from the screw blade, I then trim it off the base to allow access to the sprues deeper in.  Patience and care needs to be taken.  Once trimmed, you'll often have a small residual sprue-nub on each propeller blade.  I then use a very narrow sanding stick to carefully sand the nub down (I use the flexible/soft and narrow sanding sticks that can be purchased at just about any Hobby Lobby in the U.S.).
Why do I sell 2 units as the minimum quantity?  Because ultimately the material is brittle and if care is not taken then you can break the parts.  Now, this resin is toughened for sure and I've been pleasantly surprised at how much battering (ooops, dropped it on the floor, ooops, slipped) it can take.  But it isn't necessarily about the material as many are familiar with resin kits and this is little different.  It's more about how thin these sections have been printed.  And as modeling is about enjoyment, I'd hate for someone to purchase these as 1 unit and immediately break the parts and be back to square 1.
I think having 2 available at least gives you a much better shot. And if you only need 1, share the other with a friend!
I will combine shipping!  Add all the items you are interested into your cart and then request the total from me.
Other 1/350 scale submarine items of interest can be found here, from full kits to detail and upgrade sets at my Shapeways store:  Shapeways'dot'com/shops/mulsannescorner
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