40ポンドアームストロング砲
40ポンドアームストロング砲(the Armstrong RBL 40 pounder gun)は、ウィリアム・アームストロングによる革新的で新しい中量級後装砲。薩英戦争でイギリス軍が使用した。RBLはRifled Breech Loading(施条後装砲)の略。
1 2 3 4 Text Book of Gunnery, 1887
↑ 1180 ft/sec firing 40 lb 2 oz projectile with 5 lb RLG2 (gunpowder). Text Book of Gunnery 1887, Table XVI page 313
↑ Ruffell, The Armstrong Gun Part 5: British revert to Muzzle Loading
1 2 Treatise on Manufacture of Service Ordnance, 1877
↑ Treatise on Manufacture of Service Ordnance, 1877. pages 89, 153
↑ http://www.palmerstonforts.org.uk/art/gun2.htm#rbl
↑ The Times, 25th April 1864 : 25 April 1864 THE ARMSTRONG GUNS IN JAPAN http://www.pdavis.nl/Japan.php
↑ Friends of the Cerberus Website : slideshow http://www.cerberus.com.au/reenactors/40_pounder_slideshow.html
↑ David Spethman, "The Garrison Guns of Australia" page 49. 2008, published by Ron H Mortensen, Inala, Qld. ISBN 978 0 9775990 8 0