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Pile ring
| Глоссарий по архитектуре и конструкциям |
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Drive band., английский
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Driving band, английский
One of the features of a gun-fired naval projectile, consisting of a band of copper, alloy, or plastic, seated in a groove cut at the rear of the projectile body. its purpose is three-fold: [1] to seal against the escape of propellant gas around the projectile. [2] to engage the rifling of the gun’s bore and cause the projectile to rotate. [3] to act as a rear bourrelet on those projectiles which have none. also rotating band.
Drive band., английский
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