The Grenade Cannon
And so it rained fire and gunpowder smoke on the poor saps
"Test commencing in five," shouted Dr. Akira Light through the Steam Walker's megaphone, pulled down from its usual location just for the occasion. He was sitting somewhere in front and below the pilot seat, in the operating chamber of the modified helm gun.
The test was being conducted on captured ground, a little less than a mile away from the battle front where a system of low trenches and palisade fortresses held off the Singuonese advance. It was a rolling plain, its beauty marred by cut-down trees, small craters and the long, deep pits known to the military men as trenches. The doctor continued, deliberately saying "Four..."
From a far away, a team of technicians and specialists used their spyglasses to watch three things: straw men lined up in a fortified trench, straw men lined up just outside the trench, and the cannon at the helm of the Steam Walker. "Three..." came the loud voice of Dr. Akira Light, somewhat muffled by the distant sounds of cannon firing. It was a regular occurrence in the test field, being so near the frontlines.
Near the men from the Imperial Academy were men from the Nihojonese Standard Army. These were high-ranking officers, watching just as closely as the scientists. Among these men were Seichiro Yamamoto and Akihito Saito, men who the readers should already be acquainted with. "Two..." said Dr. Light as clearly as before.
Inside the Steam Walker was Dr. Akira Light; a ticking pocket-watch on his lap telling him that it was four in the afternoon. He pulled the rear end of the modified helm gun, revealing a hole which was supposed to hold one unit of ammunition. He took out a fairly recent invention, something some people called a "grenade" from "pomegranate," because when cut in half it looked like a pomegranate fruit with several seeds inside. In the case of the grenade, these seeds were musket pellets. "One..." said Dr. Light absently, concentrating on the task at hand.
The doctor lit a slow-burning fuse at the end of the grenade, which was supposed to trigger the explosion of gunpowder within the grenade. This would cause a violent volley of deadly musket pellets once it was burnt out. The length of the fuse allowed the operator to control how long it took before the small bomb exploded. For this reason, all grenades in the nearby ammo box had fuses that were long enough for fifteen seconds of burning time. The fuses were colored with an alternating pattern, each change in color marking a one second interval. This allowed the operator to easily set the time until explosion without having him manually measure the length of fuse.
"Zero!" yelled the doctor, placing the grenade into the cannon compartment. This replaced the steam pressurization tube-and-compartment back into position (this being next to wheels that precisely controlled the horizontal and vertical angles at which the gun was pointed), which would propel the grenade forward. There was a pressure-meter on the rear of the cannon, side-by-side with a distance meter corresponding to the distance a projectile roughly the size, weight and shape of a small cannon ball (or, in this case, a grenade) would travel in accordance with the pressure. The doctor yelled in to the megaphone, saying, "Seven seconds with three-second allowance!"
Immediately, before his three-second time limit was up, he pulled a lever which served as a trigger for the modified helm cannon. The distinctive sound of de-pressurization filled the air, accompanied by small clouds of steam. The projectile was on its way to the straw men. The doctor, after taking a quick glance at the pocket-watch ticking on his lap, watched through the narrow peeping hole of the operating chamber while the distant observers were unblinking as they squinted through their spyglasses.
Within roughly six or seven seconds, there was a small explosion in the middle of the congregation of straw men. The dummies were shaken--literally. None of them fell down, but patches of straw strewn on the ground indicated that they sustained damage. The military officers looked let down, expecting some fiery spectacle, but the technicians looked ecstatic. A few of the engineers ran forth to examine the targets: they had placed sheets of paper inside to be able to assess the damage more fully.
A few more replicates of the test were conducted, and the men called it a day. The military men were unsure of what to think, but Dr. Akira Light knew the implications of the newly-applied battlefield weapon. Around two out of three dummies in the setup sustained damage. Around a third of the damaged dummies were dead, while most of the rest were injured with varying severity.
He pictured having the Steam Armor-clad SS-Troopers bring around five grenades into battle instead of the usual small cannon-ball as ammunition for their steam cannon. They could shoot straight up and above enemy formations, raining musket pellets at the poor masses of infantrymen before charging with full force. The Steam Walker could have a larger version with smaller pellets: the scalding hot steam which it used as it primary weapon was potentially far more effective when used against already-injured opponents. The War Armor can have the largest kind of these grenade-ammunition in field battles (for it would need the cannon balls for sieges), for it did, in fact, have the largest steam cannon of the three designs.
They tried using the grenades on normal cannon, but since the gunpowder cannon tended to destroy the grenades immediately; its range was severely limited despite the scatter effect that was hoped for. Perhaps innovations can be done later, but for now Dr. Light focused on arming the entire SS-Company--which used steam-pressure cannon--with grenades.
It was a good day for Dr. Light. He sat in his office by lamplight, he began writing out three things: one is a design for a field fuse-lighter (a small, protected lamp which the SS-Troopers in Steam Armor could use), another was for orders to his connections in the SS-Company detailing his plans and the need for artillery training at the soonest possible time, and finally a letter to the Seichiro Yamamoto, Prime Minister of Nihojon and Governor of Kyoto in a bid to have everything formalized.
By the following half-month, everything would be in order. The SS-Company will be fitted with weapons of mass-damage, further evening out difference in numbers with sheer "Power and Technology."
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OOC: Grenades existed way before rifles, and rifles exist. This is the invention of a steampunk grenade launcher (refitted steam cannon). Also, trenches were already in use in the time of Vegetius (a statement thrown out just in case anyone shares my previous and rather strange notion that trenches were not in widespread military use until WWI, a notion dispelled by reading Vegetius and Dumas).
This was written hours ago but the posting was postponed by a lack of dial tone.