bore evacuator


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bore evacuator

[′bȯr i′vak·yə‚wād·ər]
(ordnance)
A device placed on the tube of artillery weapons to force propellant gases to flow outward through the muzzle end of the bore from a cylindrical chamber around the gun tube; the chamber encloses a series of jets around the cannon tube through which the gases flow.
References in periodicals archive ?
I JUST USED A LITTLE GMD AND NOW YOUR BORE EVACUATOR'S O-RING IS WAAAV TOO BIG!
Servicing the main gun tube, bore evacuator and breech is especially important.
Bore Evacuator. Condemn the bore evacuator when visible damage to the composite material (e.g., breaks in the fiberglass) on the exterior surface (punctures, cracks, dents, severe abrasion, distortion, hammer marks) is present.
For example, after firing you're supposed to slide back the bore evacuator, inspect for damage and then clean, clean, clean!
Water corrodes gun tubes while also damaging breech mechanisms, bore evacuator components, and firing circuits.
During normal operations, the 120mm gun system uses the bore evacuator to remove the combustible and toxic fumes generated during firing.
Water also gets into the main gun system, causing corrosion and damage to the breech mechanism, bore evacuator components, and firing circuits.
Crewmen, after firing the main gun on your tank, don't forget to service the bore evacuator. It's a required after-operation PMCS check in your -10 TMs.
That's especially important when it comes to servicing the main gun tube, bore evacuator, and breech.
Crewmen, keeping the muzzle brake and bore evacuator free of carbon is one secret to straight shooting with your M109-series SP howitzer.
Crewmen, after firing the main gun on your tank, don't forget to service the bore evacuator. The maintenance instructions start on Page 3-247 of TM 9-2350-264-10-2, Page 3-138 of TM 9-2350-288-10-2, and Page 3-165 of TM 9-2350-388-10-2.
A crooked collar retainer on your tank's bore evacuator is more than a bad fashion statement, crewmen.