老佛爷的一战海军武器关于该级舰主副炮 27cm: French M1887 L/30 and L/36 made by Canet armed the Psara class. Nearly all guns of similar calibre in the French Navy which survived to 1914 were considerably longer (the battleship Hoche and the gunboat Styx had 28-calibre M1884 guns of this type). Like other contemporary French guns, they consisted of thick A tubes reinforced over their breech areas by a long jacket.They were close-hooped to the muzzle, with one layer of broad hoops shrunk on over the jacket.Weights were 32.3 tons (L/30) and 35.3 tons (L/36) respectively; overall lengths were 27ft (32ft5in); bore lengths were 28 (34) calibres; the AP shell weighed 551lbs (278lb brown powder charge)and the Common shell 441lbs (181lb prismatic powder charge), muzzle velocities being 2051ft/sec and 1706ft/sec for the short gun and 2182ft/sec and 1870ft/sec for the long gun. Chamber pressure was 15.25 tons/in2 . 15cm/36: This Canet gun armed the Psara class: weight 6.52 tons, length overall 17ft 9in, bore length 34 calibres, AP shell 92.6lbs (50.4lb brown powder charge), 2133ft/sec, Common shell 92.6lb (37.5lb charge), 1772ft/sec.