Digital full-size plans on Cd Scale 1/96 The Frigate H.M.S. Amethyst Suitable for radio control


Digital full-size plans on Cd

Not a printed plan and no material supplied

The Frigate

H.M.S. Amethyst

Digital full size plan prints on a 40”x 24” Sheet

Digital One-page article

NOTE: No Building instructions 

Digital Files are TIFF,JPEG and PDF



Scale 1/96

Length 37 ½”

Beam 6 5/8”

Suitable for radio control 


Most people have heard of the part played by H.M.S. Amethyst in the actions off Korea and the Yangtze battle, the story of which is told in "Yangtze Incident" (a Panther book first published by Harrap in 1950), by Lawrence Earl. The vessel shown here is the sixth Amethyst, the five preceding ships also being either frigates or corvettes, with one a light cruiser, the first ship of the name having been a fifth-rate named Perle of 38 guns captured from the French at Toulon in 1793, and recommissioned in the Royal Navy and renamed.

The present ship, one of the sixteen "Modified Black Swan Class", built from 1938 to 1946, had a full load displacement of 1,490 tons and a designed speed of 20 knots, but she did not attain more than 18 1/2 knots in service owing to much extra equipment deepening her draught which the drawing shows at ten feet. She had Parsons geared turbines of 4,300 S.I.H.P. and was armed with six 4-in. twin HA/LA guns,  she was also fitted with two anti-submarine "Hedgehog" mortars on "B" gun deck, but these were removed after 1949, and the plan shows the ship as in the last years of her career. Her length overall was 299k ft., beam 38 ft. and draught, at full load, 10 ft. Her complement was 192 officers and ratings.

A working model of Amethyst would be a convenient size built to any of the three scales 1/8 th, 3/16 ths, or 1/4 in. to the foot. At 1/8 th scale the length would be 3 ft.1 ½” and the displacement about 5 lb. At 3/16 ths the length would be 4 ft. 9 in. and the displacement about 14 lb., and at ¼ in. to 1 ft. the length would be 6 ft. 3 in. and the displacement about 32 lb. Even the largest of the three would be portable, although rather long. The body plan, which also shows the run of the plating, is reproduced here true to scale at 1/16 in. to 1 ft. For the 1/8 in. scale model the "corresponding speed" or scale speed would be 1.8 knots. In all this the point to bear in mind is that "displacement" means the total weight of the model with all the machinery, radio-control gear, etc., on board. If the weight is increased the draught will increase correspondingly.

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