Li Younan swam around the plane wreckage, making a general observation, then gently touched his chest.
Although he possessed the skill of deep-sea heritage, without any diving equipment, oxygen consumption while diving here was quite fast.
It’s widely known that you can’t ascend quickly at this depth, and Li Younan’s physical strength couldn’t withstand rapid pressure changes, so he had to reserve a certain amount of oxygen for ascending.
Li Younan controlled his body to slowly ascend bit by bit.
While normally he could stay underwater for a while, he didn’t plan to push himself to the limit. He wanted to leave enough safety margin.
Before long, Li Younan slowly surfaced, then lay on the buoyancy device made from coconut shells to regain some strength, taking several deep breaths, feeling the rise in blood oxygen concentration, adjusting his state until he was ready to dive again.
This time, he had a clear goal and direction, swimming straight to the plane’s emergency toolbox.
At this moment, the toolbox was stuck with a deformed part, and Li Younan had to try several times before prying open the cracks.
There were many parts of the plane that could be used, but the prerequisite was having tools to dismantle them. After opening the emergency toolbox, sure enough, there were wrenches, screwdrivers, and other tools inside.
Li Younan also crawled into the already disassembled cabin, found a few sets of clothes, put them on, inserted tools like wrenches and screwdrivers into the clothes, and then surfaced again.
After resting for a while, he dived for the third time, using the tools from before to remove several bolts from the landing gear. These bolts weighed about five or six kilograms, and Li Younan placed the bolts in his pocket, not planning to dive further today after surfacing again.
He took this time’s harvest with him, lay on the coconut shell, and returned to the beach.
Subsequently, on the beach, Li Younan began to sort through the loot from his first dive.
The finished tools included a wrench, a screwdriver, and a pair of pliers.
These tools were meant for dealing with simple repairs on the plane, so they mostly corresponded to objects like screws.
Actually, there were larger tools inside, but considering the weight, Li Younan didn’t take them.
These equipment were made from high-strength aluminum alloy, the screwdriver can help Li Younan open coconuts, and the wrench could be used to search and dismantle parts from the plane next time.
But to be honest, these tools don’t offer much help for living on a deserted island right now.
The most important gain from this trip was that metal part, dismantled from the landing gear, weighing several kilograms.
What Li Younan needs most now is an axe; unfortunately, he didn’t find such a tool in the toolbox, but with enough metal, Li Younan can forge an axe.
He took these gains back to the vicinity of the shelter.
Today, it wasn’t raining, so Li Younan rested a little, ate some breadfruit to replenish his strength, and started thinking about how to create an axe.
Given that this is a deserted island without professional forging equipment, crafting an axe is quite a troublesome task.
In terms of material, this metal is high-strength chromium-molybdenum steel, with strong corrosion resistance. If it could be forged into an axe, its strength would be very good.
The steel material for the axe is solved, but next, it still needs a handle, a forging base, and most importantly, a heating device.
The handle issue is the easiest to resolve; there’s plenty of wood here, and Li Younan had previously picked up a sharp stone, so spending some time chopping a suitable axe handle wouldn’t be difficult.
The forging base could be improvised with granite stones near the cliff; the slightly troublesome part is the heating device.
Li Younan brought over two relatively flat slabs, collected enough firewood from the forest, and moved them into a cave to ensure that even if it rains, the work progress wouldn’t be affected.
Thus, with all the preparations completed, Li Younan took a deep breath and began to prepare forging his axe.
First, Li Younan built a small furnace with stones, then constructed a V-shaped air duct using two slabs, covered the duct with a shelter woven from leaves of the palm tree, aligning the V-shaped end to the campfire, thus creating a simple device to concentrate wind power.
Then came the extremely exhausting heating process.
The campfire lit up, and Li Younan used a palm leaf to continually fan, the airflow blown in concentrated through the V-shaped duct impacting the campfire, visibly, with the wind power, the temperature inside the furnace continuously rose.
Under high-temperature heating, the steel blank continuously absorbed heat and turned red-hot. At this moment, Li Younan’s forging relied entirely on feel; if it were any other swordsmith under such conditions, it would be difficult to forge a qualified axe. Yet Li Younan had to be fully focused.
Fanning was a highly physically demanding task, and soon, sweat began to seep on Li Younan’s forehead.
Firewood was continuously added to the furnace, rising in temperature with the wind’s aid, burning as charcoal.
Efforts do not disappoint the determined. With Li Younan’s continued exertion, the metal block quickly turned red and softened.
Li Younan put down the palm leaf, checked next to the furnace to confirm the temperature was right, then used pliers to clamp the steel blank and take it out.

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