Changâanâs Machinery Department.
Early in the morning, the Firearms Camp delivered a cannon from Qingzhou.
Fang Chengyou circled around the cannon, taking precise measurements of its length, thickness, and barrel design. His body still felt a bit weakâa lingering side effect of last nightâs indulgence.
He recorded each dimension with utmost care. Just yesterday, Prince Zhaoâs heir Zhao Yuanliang had promised him that if he succeeded in replicating the cannon and handed over the production method, he would receive 100,000 taels of silver.
With that kind of rewardâmoney and women alikeâFang was even more motivated.
After detailed measurement, he told the craftsmen:
âStart heating the wax.â
At his command, the workers lit the fires and began melting wax from the storerooms.
Fang Chengyou planned to use the lost-wax casting method to replicate Qingzhouâs cannon.
This technique involved suspending the cannon in a pool, then pouring molten wax over it to create a mold.
Once the wax solidified, the layers would be cut and reassembled to form a full-size model.
Then, clay would be packed around it, and the wax melted outâleaving behind a perfect cannon mold.
Seven days later, Fang had a complete clay mold.
âDirector, the iron used in Qingzhouâs cannon seems much higher quality than ours.â
One of the craftsmen commented before casting.
Fang already knew from Zhao Yuanliang that the last few replicas had exploded during test firing.
So he concluded that iron wouldnât work.
He also knew from his familyâs experience making fire lances that copper was far safer than iron.
âUse copper. No iron,â he commanded.
âCopper? But sir, for something this heavy, weâll need a lot of itâŠâ the craftsman hesitated.
Fang knew that a copper cannon would cost over ten times more than Qingzhouâs iron version.
But right now, the goal was to succeedâno matter the cost.
So he insisted:
âI said use copper!â
The workers obeyed, gathering all the copper they could find in the Machinery Department and casting the cannon.
Fifteen days later, a bronze cannonâmatching Qingzhouâs in size and shapeâstood ready.
Emperor Xiao Wenxuan was thrilled.
He immediately ordered the cannon transported to the Firearms Camp for a test.
Several key officials arrived to witness it.
âThat cannonâs entirely bronze? Look at the color!â
Fei Ji practically ground his teeth as he said this. Such extravagance!
All that bronzeâhow much silver had they just melted?
Even Xiao Wenxuanâs initial excitement faded as he laid eyes on the golden-hued cannon.
âSo this is what the Machinery Department came up with? It certainly looks impressive.â
The Crown Prince laughed.
In his eyes, it looked flawless.
Zhao Yuanliangâs eyes sparkled. He was impressed that Fang had actually pulled it off.
Using bronze hadnât crossed his mindâbut now, looking at the cost, he couldnât help but feel it wasnât worth it.
He would rather buy Qingzhouâs cheaper iron cannons.
âBegin the test.â Xiao Wenxuan said coldly.
If this cannon didnât match Qingzhouâs in power, he might just kill Fang Chengyou himself.
At the order, the artillery crew loaded the powder and cannonball.
âBOOM!â
The cannon firedâthe ball flew forward into the woods⊠and thudded against a tree, falling to the ground.
The crowd of officials burst into laughter.
The power was nowhere close to Qingzhouâs cannons.
Xiao Wenxuanâs face turned stone-cold.
Even the Crown Prince and Zhao Yuanliang were confused.
The shape was perfectâwhy was the power so weak?
Fang Chengyou stood frozen, speechless.
âWell, Fang Chengyou?â an official said mockingly.
âThis is what you call a success? Itâs ten times more expensive and a tenth as powerful. What use does the court have for this?â
Sweating profusely, Fang stammered:
âNo⊠no, that shouldnât have happened. Itâs just like the Qingzhou model. Why is the power so low?â
âYouâre asking me?â Xiao Wenxuan roared.
âWho am I supposed to ask?!â
The emperorâs hope of copying Qingzhouâs cannons was fading fast.
Fang quickly offered,
âMaybe itâs because iron cannons are more powerful than bronze? Please let me try againâwith iron this time.â
Xiao Wenxuan, though furious, wasnât ready to give up.
âOne last chance. If you fail again, drop the matter.â
Fang nodded eagerly and slunk back to the Machinery Department.
The Crown Prince and Zhao Yuanliang exchanged looksâdisappointed.
Over the next month, Fang switched to iron.
But the same problems Zhao Yuanliang had faced appeared.
After just a dozen test shots, each iron cannon explodedâcausing the deaths of dozens of skilled craftsmen.
And the cannonâs range and power still didnât match Qingzhouâs.
âWhy? Why?!â
After another explosion, Fang stared at the Qingzhou cannon in despair.
No matter how much he adjusted the process, he just couldnât match its power.
In one night, Fang aged ten years.
âDirector, His Majesty sent word through Minister Feng,â a craftsman said timidly.
âStop wasting silver. The Emperor has called off the project.â
At that moment, Fang was completely crushed.
He had lost the emperorâs favorâhis career was over.
Zhao Yuanliang would abandon him tooâhe no longer had any value.
âWhy? Why?â he muttered like a madman.
âWhy canât it match Qingzhouâs cannon, even though it looks exactly the same?â
News of the Machinery Departmentâs failed imitation spread like wildfire among the court.
Everyone who had hoped to copy Qingzhouâs cannons was now disappointed.
This meant only one thing:
They had no choice but to buy cannons from Xiao Ming.
At the same time, word of this reached Qingzhou.
Xiao Ming had already been informed by his artillery officers that Changâan had tested a bronze cannon.
âYour Highness,â Pang Yukun asked curiously,
âThey say this bronze cannon was nearly identical to ours. Why was its power so much weaker?â
Xiao Ming actually broke into a cold sweat when he heard the news.
The truth was: the bronze cannon from Changâan was a qualified cannon.
In the early days of gunpowder warfare, bronze cannons and bronze-alloy cannons were the mainstreamâuntil better-quality iron and steel became more widely available.
The reason the power was so low⊠wasnât because of the cannon.
It was because of the gunpowder.
The artillery crew that went to Changâan to assist had reported back:
Fang Chengyou had used locally made gunpowderânot Qingzhouâs formula.