Britain 1.5-pdr [37 mm/43 (1.46")] Mark I

Britain
1.5-pdr [37 mm/43 (1.46")] Mark I
Updated 07 December 2011

A light AA gun used during World War I. Does not appear to have been very successful, as none survived in service by 1939. Some of these guns were exported to Austria-Hungary before 1914.

HMS Undaunted
This ship carried two 1.5-pdr weapons in 1918
NMM Photograph

. Other images at The Vickers Photographic Archive

Mark I Mounting: 2833 and 2834
Mark II Mounting: 4886

Gun Characteristics .

Designation	Vickers 1.5-pdr Mark I
Ship Class Used On	British: A few cruisers Austria-Hungary: Erzherzog Karl, Sankt Georg and Monarch classes
Date Of Design	about 1910
Date In Service	1914
Gun Weight	126 lbs. (57 kg)
Gun Length oa	N/A
Bore Length	62.8 in (1.595 m)
Rifling Length	N/A
Grooves	N/A
Lands	N/A
Twist	N/A
Chamber Volume	N/A
Rate Of Fire	N/A

Ammunition .

Type	Fixed
Weight of Complete Round	HE - N/A
Projectile Types and Weights	HE - 1.5 lbs. (0.7 kg)
Bursting Charge	0.16 lbs. (0.07 kg)
Projectile Length	N/A
Propellant Charge	N/A
Muzzle Velocity	HE - 2,100 fps (640 mps)
Working Pressure	N/A
Approximate Barrel Life	N/A
Ammunition stowage per gun	N/A

Range .

Range @ 45 degrees	about 2,000 yards (1,830 m)
AA Ceiling	N/A

Mount / Turret Data .

Designation	Pedestal Mount Mark I and Mark II
Weight	N/A
Elevation	-5 / +80 degrees
Elevation Rate	Manually operated, only
Train	360 degrees
Train Rate	Manually operated, only
Gun recoil	N/A
Note: The Mark I was a free-standing mount operable by a single crewman while the Mark II was a two-man mounting with seats for the trainer and pointer.

Data from
"World Warships in Review 1860-1906" by John Leather
"British Cruisers of World War Two" by Alan Raven and John Roberts
and
Tony DiGiulian's personal data files
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Special help from Daniel Muir

Page History

05 September 2006 - Benchmark
07 December 2011 - Updated to latest template