Conan: The Mechanic

"What is this?" Qianyu was not tall enough, so she could only observe those particles from the bottom of the thicker cup. "It doesn't look like pieces of aircraft parts." (Generally speaking, the pieces are narrow and long pieces, otherwise it is almost impossible to break down.)

"Little Pebble?" the captain asked uncertainly. "But even if it's a small stone, it's too small, isn't it?"

"Gravel?" Conan was also unsure.

"Not completely accurate," the boy glanced at Conan and Chiyu, smiled and lowered the cup to a level where they could look at each other. "I think the most correct statement should be - volcanic rock."

"Ah?" Qian Yu was stunned.

"Volcanic rock?" The co-pilot was surprised.

"You mean..." Conan probably had an answer in his heart.

"We have limited time, so do as I say first," the young man motioned for the captain and co-pilot to return to their seats. "It went down immediately until now the situation where this particle hit the cockpit glass is over."

"If we descend, we will land on the sea faster!" The captain frowned, but he still took the co-pilot to the seat. "I'll give you a minute to convince me."

"We are flying in volcanic ash," the boy explained with a sigh. "Dust in the ash was sucked into the engine and the whole engine was blocked! As for the evidence, there was nothing on the weather radar."

"What reason is this?" Although the captain had fallen into deep thought, the co-pilot didn't buy it.

"Weather radar," the boy tapped on the radar screen. "It works by detecting water droplets in the cloud to mark the height and location of the cloud. But if there aren't any water droplets in the cloud, it can't do anything. For example, the volcanic ash cloud I just said, it contains Calcium oxide reacts with water to produce slaked lime, so there is absolutely no moisture in this cloud."

"Co-pilot, descend." After listening, the captain expressed his attitude with his own instructions.

"Captain!" The co-pilot quickly persuaded him.

"I'm afraid he's right," the captain shook his head. "Do you remember, those idiots in India couldn't understand what we were saying? It was all because of the volcanic ash rubbing off our plane, which created static electricity - the flashing lights on the engines - which interfered with our communication systems. But what about the engine, little guy? Even if we could get out of this ash cloud, we wouldn't have enough speed to get back to land."

"So when we don't have boulders on our windows anymore, that's when we're out of the ash cloud, we're going to move on to the next step, now we're going down, the engine... just leave it alone until we're out of the ash cloud. ."

"You tell me what we should do first," the captain said helplessly. "If the order is given after escaping, there may not be enough time."

"What's our speed?" The boy looked at the captain's airspeed indicator. "330 miles?"

"330 miles?" The first officer was stunned, then looked at his airspeed indicator again. "My speed here is 280 mph!"

"What?" The young man hurried to the co-pilot's airspeed indicator, and he saw that the captain's and co-pilot's airspeed indicators differed by as much as 50 miles per hour. "This is troublesome..."

"Yes," the captain said solemnly. "It's a big trouble."

"Excuse me," Conan was a little confused. "What happened?"

"As a large passenger plane, the engine can be successfully started only when the speed is within a small range," the boy replied. "The launch speed of the plane is 250 to 270 mph, and the trouble is, there is no way to confirm which airspeed indicator is intact, so there is no way to confirm the speed."

"Let's not talk about this issue," Qianyu suddenly thought of something. "Since the engine has been blocked, we can't start the damaged engine even if we leave the volcanic ash cloud!"

"Yes," the young man smiled. "The reason the engine gets clogged is because the engine's temperature of up to 2,000 degrees melts the volcanic ash and flows into the engine. Once the volcanic ash is not heated by the hot part of the engine, it resolidifies into a solid and liquid form. A viscous form that clogs the engine. Halfway through the blockage there is the flashback we've seen before, and it's completely blocked and it stalls."

"However, if the volcanic ash is completely solidified into a solid state, most of the volcanic ash will fall naturally due to various forces, and the engine will be able to run after it leaves the engine."

"So, we are cooling volcanic ash now?" Conan raised his eyebrows.

"No, no, no," the boy shook his head. "The cooling process is not as slow as you might think, especially since our aircraft is going so fast, it will cool down to the level we need very quickly. Now my intention is to confirm which airspeed indicator is correct."

"How is this determined?" the captain asked. UU Reading www.uukanshu.com "We don't have any other speed measuring instruments, right?"

"The law of conservation of energy," the boy shrugged. "Kinetic energy change = potential energy change - air resistance work, and the rest is almost negligible. The nose is pulled down five degrees, and the ailerons are fully pulled up. I need thirty seconds to give the answer."

So, in the next dozens of seconds, the captain pulled the nose of the aircraft to the angle requested by the boy, and the boy stood behind the captain, watching the altimeter silently.

"As I guessed," the boy suddenly showed a relieved expression. "The captain's watch should be more accurate."

"You guessed it?" The technician was surprised. "My feeling is that the captain's watch is correct, but how did you guess it?"

"If the speed is really as slow as 280 mph, the speed of the plane would never exceed 290 mph when I came in, and the flame length of the backfire would never be that long. The length of the backfire was probably 30 yards. above."

"We're out." With the captain's reminder, several people found that the plane had left the coverage of the volcanic ash cloud. "What's next? Slow down?"

"Keep it at this height," the boy said decisively. "Don't slow down, fly level, let the speed drop naturally, and now you can start preparing to restart the engine. The start procedure speed stipulated in the regulations is three minutes, you have six or seven chances, otherwise we will feed the fish."

"The current speed is 330 miles, should we start now?" The captain was stunned.

"I didn't say that your watch must be accurate," the boy said speechlessly. "It's just that the speed of the co-pilot is obviously too slow, so we have to try it slowly."

"Understood," the captain nodded. "Prepare to perform the engine ignition procedure!"