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1/400 Scale Royal Navy MKIV Pom Pom Directors with Type 282 Radar x4.
Incredibly detailed parts modelled using plans and Many reference photos.
Parts for 4x Directors
Hex Nuts and Rivets, Operator Seats and Footplates, Reciever Dial details, Rangefinder, Cabling, Operators Sights and Training/Elevation Handwheels
Comes with Type 282 radar, Yagi Antennas not included due to limation of 3d printing, slots are printed in place for modeller to use brass to create Yagi antennas if desired.
Historical Data The Mk IV director was a considerable improvement and used gyroscopes in a gyro rate unit coupled to an optical rangefinder and Type 282 radar to determine the range, speed and direction of enemy aircraft and then used an on-director computer to produce an accurate fire control solution to hit the target. Later versions of the Mk IV director introduced remote power control (RPC) and could control the Pom-Pom mounting by remote control from the director. The Mk IV director was fully tachymetric but suffered from the fact that the director was not stabilized against the movement of the ship, and consequently required a carefully trained crew to achieve good results. Even so, the Mk IV director was highly advanced and placed the Royal Navy in the forefront of naval anti-aircraft fire control when it was introduced to the Royal Navy on HMS King George V in 1940. Later versions were upgraded with Type 282 radar and RPC beginning in 1941, with HMS Prince of Wales being one of the first ships to receive the radar upgrade, which she first used in action during Operation Halberd.
Cleaning Information 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. Please take a look at my other items.