Mk 40 Mod 0-5, 7 (Obsolete)Mk 47 Mod 0
VT FUZES FOR PROJECTILES AND SPIN-STABILIZED ROCKETS
Chapter 4 - VT FUZES FOR PROJECTILES
Mk 45 Mods 11 and 12 (Obsolete)

General Data

Projectiles Used In _____ 3"/50 A.A.

Markings

Mk 45 Mod ______

Model _____ Lot _____

Over-All Dimensions and Weight of Mk 45 Mod 12

Length 7.7 in. (approx.)
Diameter at base of ogive 2.4 in. (approx.)
Threaded length 1.0 in. (approx.)
Threads 2.00 in. 12 R.H.

Weight

2.40 lb.

Material. Green ethyl cellulose plastic nose ogive molded integral to steel base ring; per-forated steel nose cap molded into the inside forward end of plastic ogive; steel body cylinder

Arming Range 600 yd.
Type of Energizer Reserve
Wave-Suppression-Feature None
Self-Destructive Feature None
Auxiliary Detonating Fuze Mk 44

Compression-Type Waterproofing

No

Description

This fuze has a maximum influence radius of about 50 feet. Burst heights over water at long range will average around 75 feet, with wide variations in burst height occuring as a result of wave effect and variations in sensitivity between individual fuzes. Burst heights over water at shorter ranges will generally average to lower levels.

Employment

This fuze is used for antiaircraft fire from a minimum range of 500 yards to the extreme range of the gun.

Remarks

The Mk 45 Mod 11, with longer base, was declared unservicable and recalled, to be re-placed.

Figure 8. VT Fuze Mk 45.

Mk 40 Mod 0-5, 7 (Obsolete)Mk 47 Mod 0