What is "baseplates"

Usage examples of "baseplates".

The biggest daytime signature was the dust from the baseplates when they slammed into the ground.

There were the baseplates and sighting gear for both mortars, then the two mortar tubes.

All traces of the mortars on the point had been removed, the tubes and baseplates brought inside, the rocket-launchers and packing crates dropped out at sea.

Instead, he picked out the anti-aircraft guns, standing tall and ungainly as giraffes on their circular baseplates, the long barrels already pointed skywards, ready to hurl their air-burst shrapnel as high as 20,000 feet into the sky.

Scattered everywhere were mortar tubes, baseplates, rows of packs with rifles propped against them, tent canvas, machine-gun belts—the linked cartridges coiled in the metal ammo cans—flak jackets, helmets, and a variety of communications gear.