The Japanese referred to this gun only as the "36 cm/45 5th Year Type" in an effort to hide its true size.
Type 91 projectiles were made for this weapon in 1941 and at least one was found in the magazines at the Kamegakubi proving grounds after the war. No test data for these projectiles was found, which may mean that the program was cancelled at the start of the Pacific War.
Few details are available on this weapon, but it was wire wound only near the breech and had a slim chase, with a diameter at the muzzle of about 29 inches (73.7 cm). The cradle and slide were apparently developed from the British 15"/42 (38.1 cm) Mark I.
48 cm/45 (18.9") 5th Year Type as found
in December 1945 at Kamegakubi Proving Grounds
|Designation||Official Designation - 36 cm/45 (18.9")
5th Year Type (Model 1916)
Actual Size - 48 cm/45 (18.9") 5th Year Type (Model 1916)
|Ship Class Used On||Experimental|
|Date Of Design||about 1916|
|Date In Service||1920 (as experimental gun)|
|Gun Length oa||N/A|
|Bore Length||about 850 in (21.600 m)|
|Rate Of Fire||N/A|
|Projectile Types and Weights||Type 91 APC - about 3,800 to 3,900 lbs. (1,724 to 1,770 kg)|
|Projectile Length||81 in (206 cm)|
|Approximate Barrel Life||N/A|
|Ammunition stowage per gun||N/A|
|Note: APC Type 91 projectiles were developed for this weapon during the 1930s. These differed from the normal design by having only one driving band.|
23 December 2006 - Benchmark
29 November 2009 - Added information about Type 91 projectile
27 May 2012 - Updated to latest template