Veteranclaims’s Blog

December 26, 2017

Impulse Noise Military Weapons; 60mm mortar; Squad Automatic Weapon (SAW); Grenade; Light Antitank Weapon (LAW); Bradley Fighting Vehicle (BFV);

This is a PDF file, the link below should take you to the file:

US Army Center for Health Promotion and Preventive Medicine
Army Hearing Program

Noise Levels of Common Army Equipment

M72A3 Light Antitank Weapon (LAW) Gunner 182 Decibel[dB]
M224 60mm mortar, M888 round, charge 4, QE 800mil
0.5 m from the muzzle, 0.9 m above ground, 105 degree
185 Decibel
M249 5.56mm Squad Automatic Weapon (SAW)
fired from a HMMWV Gunner
159.5 Decibels
M26 Grenade At 50 ft 164.3 Decibels
Bradley Fighting Vehicle (BFV) and derivatives. The major noise source is the drive train, particularly the action of the track links as they round over the sprockets, idlers and wheels. For this reason, high noise levels (101 to 115 dBA) occur when the vehicle is in motion. The crew wear the combat vehicle crewman’s (CVC) helmet which has integral hearing protectors. A CVC
with active noise reduction (ANR) providing added noise protection is available on newer models.
The passengers (infantry squad) must rely on their own hearing protectors such as earplugs. These are less effective than the CVC with ANR.

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