orders to his crew. The ship began taking a new heading, but Belisarius did not bother to watch. His concentration was focussed on the scorpions.
John, he saw, had chosen his weapons well. The scorpions were that type of stone-throwing catapult which were called palintonos. The name was derived from the "fold-back spring" design which allowed the two torsion arms to swing forward further than was possible in the more traditional "straight-spring" euthytonos. The weapons were mounted on the same type of tripod base which Roman engineers used for cranes and hoists. The scorpions were then fitted onto a swivel attachment atop the tripod. The end result was a weapon which could be tilted up or down as well as swung sideways in a complete circle.
Romans did not manufacture their artillery engines to the same degree of standardization as would be common in future eras. But, from long experience, Belisarius recognized that the two scorpions were both in what was considered the "11-pound" class—that being the weight of stone shot each was capable of hurling. Using that weight of shot, they had an effective range of well over 400 yards.
"How heavy are your firebombs?" he asked Eusebius.
"A little over eight pounds. Not more than nine."
Belisarius nodded.
"We should have a range of almost five hundred yards, then."
Again, he examined the scorpions. The weapons were placed on either side of the wood-castle, far enough apart to allow the engines to be swiveled without the six-foot-long firing troughs impeding each other. Unfortunately, of course, there was no way that both of them could be used simultaneously to fire over the same side. As they—to use Aide's expression—"crossed the T," one of the scorpions would be out of action completely.
For an idle moment, Belisarius pondered alternate ways of emplacing artillery on a ship. Almost immediately, another image came from Aide.
A steel ship, very sleek for all its gargantuan size, plowing through