Chapter 308 (2/2)

After dozens of controlled explosions, the two brothers, the lid and Agust, finally found out the specific formula of kuweisuan. Today, they filled a 48 mm ”mortar” with the kuweisuan, which they had just made, for test firing, and the result scared chief junaluska and them.

Yes, the mortar made by David adian according to the instructions of the stone bear was also successful.

As a matter of fact, mortar is more appropriate to be called as a catapult. Because this kind of super light mortar made by David Addison is the one that Shixiong pointed out according to his own data of 89 type catapult.

The research and development of real mortar shells is still in progress. Compared with the shells launched by the catapult, mortar shells are much more complex. They not only have tails and primer, but also have warheads and impact fuzes. Therefore, they can not be made in a short time.

In contrast, the primer of this simple grenade made by adian is separated from the shell, and the propellant is installed at the bottom of the grenade barrel, and it doesn't need to be excited by the fire cap, just use the fuse.

The original history of the time and space on the barrel is also ammunition separation, that is, shells and propellants are loaded separately. The propellant is first loaded, and then put into the shell. When firing, the firing angle is adjusted, and then the belt on the firing machine is pulled to fire the bottom of the shell.

This kind of catapult made by Aidian is simpler than that made by himself. Because he hasn't made a friction type fire cap yet, Shi Xiong just continues to use fuse.

Anyway, this thing is used to deal with the North American Indians. The requirement for the speed of fire is far less than that of later generations. It's as effective as igniting with fuse.

As for the grenade, which is the projectile with the barrel, Addison used a cast shell with four fins at the tail, and the front opening of the warhead was used to fill the bitter and sour medicine. When the bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter bitter.

The loud noise just now was the first live ammunition experiment of this simple catapult.

Although we didn't see the explosion point, judging from the shooting distance and the loud noise, the experiment was obviously very successful.

The barrel length of this kind of catapult cast by adian is about 10 cm longer than that of the original 89 type catapult in historical time and space, which increases the barrel length from 260 mm to nearly 400 mm. The reason for this is to increase the range.

In those years, after seizing Yue's grenade, the soldiers imitated it. However, because they could not carve rifling on the inside of the barrel, they adopted the sliding bore structure. In order not to affect the range, they lengthened the barrel to 400 mm.

The gaoshu tribe can rifling the barrel now, but they can't do anything about the rifling of the barrel, so the stone bear will use this method to increase the barrel length to improve the range.

As for how far the shell can be thrown by this door's catapult, several people on the scene didn't count. However, judging from the sound of the explosion just now, the distance that the grenade was thrown out was at least 400 steps (280 meters), or even further.

They decided to go to the explosion point to have a look. Only by seeing the effect of the explosion with their own eyes can we determine the specific power of this thing.