I discovered the HR Products line while on an annual search for a 20mm Oerlikon for my 1:24 Silverfin submarine miniature. Arrived a few days ago and I've given it the basic clean-up of flash and sprue and modification for a submarine installation. Wax-cast white-metal material (color doesn't show correctly here due to fluorescent lighting and blue shop-towel background). Here's the bits, except the base which I had already fixed up.
The submarine installation does not, as a rule, use the splinter-shield, so the yoke must be modified with razor-saw and needle-file; this was done with reference to illustrations in the squadron/signal publications WARSHIPS NO.2 U.S. SUBS in action, and the manual at hnsa http://hnsa.org/doc/gun20mm/index.htm:
I had already smoothed up the mating edges of the two-piece cast base (i.e., the original was a one-piece solid iron casting) with 320 before assembly with CA. Here's the necessary bits assembled:
Note that neither the standard spider sight nor the Mark 14 were submersible; the Mark 14 was a fixed electro-optical-gyro sight used on surface ship installations, and the spider sight required a spanner to remove or install, so it seems unlikely they were actually used on subs due to the need to "clear the bridge; Dive! Dive!" and no time to spend playing with spanners! Sorry that the spider sight did not make it into the parts pix.
Painting will be the same gray as the vertical surfaces of the sub. Detail is good. Source is HR Products "Supplier and manufacturer of white metal castings in Assorted Scale for World War II Ship Modelers, Dioramas, and Miniatures."
http://www.hrprod.com/index.html
Regards, John
The submarine installation does not, as a rule, use the splinter-shield, so the yoke must be modified with razor-saw and needle-file; this was done with reference to illustrations in the squadron/signal publications WARSHIPS NO.2 U.S. SUBS in action, and the manual at hnsa http://hnsa.org/doc/gun20mm/index.htm:
I had already smoothed up the mating edges of the two-piece cast base (i.e., the original was a one-piece solid iron casting) with 320 before assembly with CA. Here's the necessary bits assembled:
Note that neither the standard spider sight nor the Mark 14 were submersible; the Mark 14 was a fixed electro-optical-gyro sight used on surface ship installations, and the spider sight required a spanner to remove or install, so it seems unlikely they were actually used on subs due to the need to "clear the bridge; Dive! Dive!" and no time to spend playing with spanners! Sorry that the spider sight did not make it into the parts pix.
Painting will be the same gray as the vertical surfaces of the sub. Detail is good. Source is HR Products "Supplier and manufacturer of white metal castings in Assorted Scale for World War II Ship Modelers, Dioramas, and Miniatures."
http://www.hrprod.com/index.html
Regards, John
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