1/350 Scale Flowers Class 4"/45 MKIX CPI Mount x1, this is the fully Rounded Shield version (see MY Shop for the other two versions), please check your reference for your build as there are 3 different Shield types (Fully Rounded, Partially Rounded and Square). These are highly detailed parts modelled using plans and many reference photographs for the most accurate and detailed 4"/45 MKIX Guns available anywhere.
- 1x Mounting
- Highly detailed and accurate parts, modelled from plans and photographic reference.
- Barrel/Mounting and Shield are printed separately for maximum detail, elevation is set at 3º (other elevations can be requested). Some careful assembling is required (See below).
- details include: Hex nuts, accurate Rivet placement, Handwheels
- All apparatus is included: Sighting, Training and Elevation
- Main assembly comes as 2 pieces made for ease of painting and assembly and also to minimise wax support contact
1. Remove all parts from sprue as specified in cleaning details below. (paint prior to assembly)
2. Carefully insert Barrel and Mount assembly into Shield, making sure Shield support struts sit in place.
Admiral Fisher had always objected to heavy secondary batteries on capital ships, so at his insistence, the 4" (10.2 cm) caliber was chosen for the secondary weapons on the battlecruisers of the Repulse and Courageous classes. Initially, either the 4" (10.2 cm) QF Mark V
or the 4" (10.2 cm) BL Mark VIII
were to have been installed, but the first weapon was difficult to arrange for director firing and the second had a low rate of fire. The best features of both, the Mark V body and the Mark VIII breech mechanism, were combined to create the Mark IX.
The Repulse class battlecruisers used both single and triple mountings, with the latter mounting having the guns individually sleeved, an unusual feature for a secondary weapon. This mounting required a very large crew of 32 and, as it lacked power assist, proved to be quite cumbersome.
During World War II, this weapon was used in single mountings on many corvettes as well as on numerous smaller ships including 1,200 on DEMS.
Mark IX was of wire wound construction with tapered inner A tube and jacket. Mark IX* differed in having no inner A tube. Mark IX** was introduced to suit older manufacturing equipment at EOC and COW and had no inner A tube, a B tube and overlapping short jacket and an old-style step wire-winding method. All had Welin breech blocks with Vickers mechanisms. Some 2,382 were built of which 2,193 were still in service as of September 1939. Actual bore length was 44.35 calibers.
The Mark X was originally built for the Norwegian Nidaros
class coastal defense ships which were taken over at the start of World War I and became the HMS Glatton class. These guns were of Elswick Pattern T and were partly wire wound with coned breech block. A total of fifteen guns were built and these were used only on DAMS.
The data that follows is specifically for the Mark IX, but the ballistics for the Mark X were similar.
Some part cleanup will be necessary. The 3D printing process uses a waxy substance to support certain part features during the printing process. Although the parts are cleaned by Shapeways, some waxy residue may remain. It can be safely removed with water and a mild aqueous detergent like "Simple Green" using an old, soft toothbrush, Q-tips or pipe cleaners. During the printing process, liquid resin is cured by ultraviolet light. Microscopic bits of resin may remain uncured.
Let your parts sit in direct sunlight for a few hours to fully cure the resin.
Water-based acrylic paints meant for plastics is strongly recommended. Other paints, especially enamels, may not cure on Frosted Detail 3D-printed plastics.
Use dedicated model sprue cutters to remove parts to minimise the risk of damage to parts.
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Painting tips and preparation