The advantage of being located on the outskirts of the city is well reflected in the weapons evaluation field. The evaluation area of Yingtian Arsenal is so large that it stretches as far as the eye can see.
Wang Huan'an pointed and proudly introduced: "There is a thirty-mile-long artillery measurement plot over there. Unless it is the maximum range of field artillery of three and a half inches and above, we can measure everything here."
Even the Type 30 112mm cannon has a maximum range of 17.5km, not to mention the trial Type 36 144mm cannon with a maximum range of 25km.
A truck brought two launch tubes, ten rockets, and four nickel-manganese steel plates about 15㎜ thick and 2.25㎡.
Several staff members removed the heavy steel plate together, placed it on the steel frame in the evaluation area, and then ran back quickly.
The rocket launcher sample made by the arsenal is very rough. The main body is just a seamless steel pipe. The handle and shoulder rest are all made of steel and welded. The whole thing is sprayed with a layer of khaki paint.
The main body of the rocket, the fuze, and the propelling cartridge are packaged separately. Zhou Changfeng leaned over and looked at it, then picked up the fuze and inserted it into the bottom of the rocket body. Finally, he also inserted the propelling cartridge into the bottom of the main body because there were prefabricated threads. , so it is tightened after two turns.
"By the way, is there inertia insurance?"
"Yes, you didn't draw it in your sketch, but we added it. Currently, we are temporarily using mortar bomb fuses."
The No. 1 C fuze used by Wang Huan'an and others is actually a small fuze commonly used for mortar shells. After the fuse is pulled out, its inertial safety will be unlocked when sudden acceleration occurs.
But it is essentially a warhead fuze, and this type of rocket should use a bottom fuze. However, it is only a temporary test. A higher dud rate is not harmful. A special fuze can be developed separately in the future.
Unplug the fuse, insert the rocket into the launch tube, and the entire weapon is ready to fire.
"We haven't designed a grip safety for the moment, but we will add it in the future. And the electric ignition mechanism is probably unreliable in other places. It will definitely fail the Ordnance Bureau's acceptance, and it will definitely have to be replaced."
The principle of electric ignition is very simple, that is, the battery short-circuit generates heat and ignites the propellant, but the battery is unreliable in cold and tropical zones.
Wang Huan'an and several staff members retreated to both sides, then jumped into the trench half a man deep, relying on sandbags to carefully observe the target.
80g black powder is used as a propellant. When fired at a 45° angle, it can reach up to nearly 100 meters. However, at this distance, the warhead is almost flying randomly, and the impact point deviation is large. The relatively stable optimal range is about 50 or 60 meters. rice.
"How about using someone else to test fire?"
"No, you made the launch tube so thick. What are you afraid of?"
The launch tube withstands very low bore pressure and only requires a thin seamless steel pipe. However, the launch tube of the current trial rocket launcher is thick and heavy.
Zhou Changfeng raised the facing folding sight above the launch tube, then turned back to check whether there were any obstacles behind him to prevent the tail flame from burning him.
Aim at the target ahead and pull the trigger!
The current short-circuited, the propelling cartridge was immediately ignited, the black powder exploded instantly, the tail flame was spit out backwards, and the main body of the warhead was also pushed out.
"boom!"
The warhead is suddenly accelerated by this, and the inertia safety is unlocked; and after flying away from the launch tube, the four folding tail fins at the tail of the main body unfold, and the warhead flies towards the target target board in an arc.
And then...then it's gone? !
There was no explosion and no roar.
Zhou Changfeng vaguely heard a "clang", which was the sound when the warhead collided with the nickel-manganese steel plate.
"It's normal, it's a misfire." Wang Huan'an, who had become accustomed to this, turned around and shouted: "Deal with the misfire!"
After speaking, he asked everyone to retreat into the trench and remain hidden.
At this time, a gunshot was heard not far away, and then a second shot, "Bang-bang-bang!"
A well-prepared employee of the arsenal fired an armor-piercing incendiary bomb from a bunker dozens of meters away, and detonated the dumb bomb neatly.
Then several people walked over to check it, and after confirming that it was correct, they straightened the target again.
"The fuse used now is really unreliable. It will be nice to design a bomb bottom fuse specifically for it in the future." Wang Huan'an didn't care.
Zhou Changfeng then reassembled a warhead, then aimed and fired again.
"Bang-boom!"
Fire burst out and smoke flew into the air as this one successfully detonated.
After the smoke and dust dissipated, several people walked out of the trench from the edge and stepped forward to check.
"A half-inch steel plate is nothing to it, just like using chopsticks to poke tofu."
"really."
"How does it feel?"
"The launch tube is too bulky. Did you just pick a steel pipe at random? Can the wall of the pipe be thinner?"
Wang Huan'an nodded, "Yes, I randomly selected a batch of suitable thicknesses in the warehouse at that time."
Zhou Changfeng thought about it for a moment, "Also, the position of the shoulder rest is a bit far back. It would be better to move it a little further forward."
Although there are many flaws and flaws, this thing is still unsatisfactory as a test sample.
After being evaluated by the Ordnance Bureau, it will be improved again, and then a small batch will be trial-produced and distributed to the troops, and the soldiers' feedback will be used for further improvements.
In any case, it gives Ming infantry units the ability to hunt any armored vehicle in the world, but only within a distance of fifty meters.
The range is fifty meters instead of five meters, and the ability to penetrate armor in actual combat is fifty millimeters instead of fifteen millimeters, which is quite impressive.
Wang Huan'an led Zhou Changfeng to a warehouse, and then pointed to a thick armor plate lying next to it. The burn marks left by the explosion were clearly visible on it.
And...a deep hole as thick as a thumb.
Zhou Changfeng touched the hole, turned around and said, "No one can resist this temptation, right?"
"You can't get into the Ordnance Bureau if you don't know the goods." Wang Huan'an suddenly thought of something and said, "Speaking of the rules, the Ordnance Bureau will have to pay you a bonus after you adopt it. I estimate it will be at least 5,000 yuan." .”
Oh, that’s right, inventing and designing isn’t for nothing. So, wouldn’t it be possible to apply for a patent?
To be honest, Zhou Changfeng really didn't think about that.
Now when he mentioned it, he inexplicably thought of an old joke - Stoner had the patent for the M16 and became a multimillionaire, while Kalashnikov, the inventor of the AK47, couldn't even afford a plane ticket.
He remembered that the second prize of the Technical Invention Award in later generations was 150,000, the first prize was 300,000, and the special prize seemed to be 1.5 million?
The five thousand yuan mentioned by Wang Huanan is equivalent to more than 200,000 yuan in later generations, and it is at least, maybe more.
Coincidentally, when Zhou Changfeng left the arsenal and returned to the station, Xiao Li told him that a letter had been sent to him by a clerk from the Metropolitan Governor's Office.
Aha? Just make a phone call if you need anything. What matters require written communication?
Zhou Changfeng, who was a little puzzled, approached the table. After opening it, he found some kind of letter paper inside. It was a check for a fixed amount of 5,000 yuan.
Co-authored This is what that guy Shen Yu calls "special allowance", right?
(End of chapter)
