From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
(Redirected from Batteries)
On Colonial warships, a battery is a group of guns or missile launchers operated together at one place. A battery may vary in number and arrangement depending on class .
Galactica type battlestars are armed with 24 to 40+ gun turrets (depending on outfit), with two gun barrels each. Eight to twenty-four are mounted on the dorsal and sixteen on the ventral hull. Of these sixteen, eight are mounted on the bow and are thus able to fire directly forwards. It is likely that the term "battery" refers to several of these turrets acting in concert. One of the forward dorsal turrets is destroyed either during the liberation of New Caprica or the Battle of the Ionian Nebula (He That Believeth In Me) .
Mercury-class battlestars, on the other hand, have four fixed forward heavy twin guns that are grouped to a battery (The Captain's Hand) . In addition, thirty twin turrets are located along the sides of the alligator head and flight pods. Unlike Galactica's rapid-fire point defense guns, these have a slower rate of fire and are also used for offensive action ("Pegasus", "Exodus, Part II").
The large turrets found on Colonial battlestars fire several types of ammunition, depending on the objective:
It should be noted that the massive recoil caused by firing these flak rounds makes it impossible for the cannon to have a fast rate of fire like the battlestar's point-defense turrets. These shells are also too large to be loaded quickly and efficiently by crew members, and as such are loaded by mechanical hoists (33).
When engaging enemy targets over any kind of distance, a firing solution must be obtained. This requires several pieces of information to be input to a battery's fire-control computer, including the target's speed, course, and range; and the firing platform's speed and course. The velocity of the shells would be known, and is constant, given that there is no air friction in the vacuum of space. The resulting computation would allow the gun captains to accurately aim their weaponry to such a degree that firing will result in a probable hit.
Colonial gun batteries have several modes of operation.
On Mercury-class battlestars, gun batteries can be set to one of several automatic firing modes (Exodus, Part II). It is unknown if the gun batteries on older battlestars have this capability as well. There are likely other modes of operation for these batteries, but none have been explicitly stated on screen.
At least on Galactica-type battlestars, the turrets appear to be manned and manually fired. Each battery has a transparent canopy through which it is occasional possible to make out two figures in colonial flight suits. Due to the location and the (almost certain) weaker nature of the transparent material of the canopy this is likely one of the most dangerous jobs on the ship since (as seen during "Daybreak, Part II") the batteries tend to be prime targets for raiders and at least two are destroyed during the series. This destruction is usually explosive (owing to munitions detonating) and likely allows few options for escape.