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p99guy
04-10-2007, 02:00 PM
here is a neet chart showing the amount of sound produced by ground vehicles
helicopters, small arms, and large ordnance used by uncle sam....

http://chppm-www.apgea.army.mil/hcp/NoiseLevels.aspx

a Gunner using a Javlin in a fighting position is subjected to the same level of noise as the gunner of a 155mm towed howitzer! oooooooch its louder than a hand grenade exploding!

btown02
04-10-2007, 02:02 PM
Good info.

panzermk2
04-10-2007, 02:31 PM
I wonder what the impulse is of the 120 shooting. They give Tank chassis level and these warnings. Although when I went through traing I was told they had a hard time measuring the level for the main gun (DS BS?) I love the part about the driver always being coverd up. I did just about every gunnery with my hatch openso I see the show





d. Abrams Tank and derivative vehicle (Wolverine and Grizzly).

(1) Steady noise levels range from 96 to 117 dBA when moving. The crew wear the CVC helmet which has integral hearing protectors.

(2) On the tank, impulse noise levels at exterior commander and loader positions are above or just below the limit of hearing protector effectiveness for training depending on caliber (105 or 120 mm), cartridge model, and tube elevation. The drivers hatch should be closed at all times when firing the main gun. Training with crew heads above the hatch plane is not permitted per the user manuals for certain defined conditions. These restrictions are not applicable to battle situations.

j.carney.tx
05-06-2007, 12:38 AM
what's the dB rating on the receiving end of one of those 155mm howitzers? :thinking:

Medula Oblongata
05-06-2007, 02:35 AM
what's the dB rating on the receiving end of one of those 155mm howitzers? :thinking:
Sounds like we need to find out.. I'll get you a sound pressure meter. You go downrange, and I'll fire the cannon... :D