"Tom tom!" The 20-mm M61 Vulcan cannon, in the lower left side of the nose, opened fire violently, and the cannon turned into a tube, bursts of flames, accompanied by thick smoke, shells flew out.

This is an American general-purpose cannon, an air-cooled, electronically fired Gatling cannon that uses an external force to drive six barrels to roll.

As long as you know the principle of Gatling, you know the terrible rate of fire of this cannon, with the rotation of the barrel, one by one 20 mm shells fly out, in the extreme case, its rate of fire is as high as 7200 rounds per minute, but in actual operation can choose between 4000 rounds per minute and 6000 rounds per minute two rates of fire.

Normally, the average pilot would choose a rate of fire of 4,000 rounds, and the reason is quite simple, because there are not many shells!

For the fighters of this era, the cannon is actually a supplement, and very few fighters can exchange fire to the point of using the cannon, and when the missile victory theory was more than ten years ago, the cannon was even canceled.

Shells have weight, and the more spare ammunition, the greater the weight, which is not conducive to the maneuverability of the fighter, so even a heavy Tomcat fighter only has 676 spare rounds, and one less round is fired.

At the same time, because the rate of fire is high, the chain is easily deformed, bent and even broken under the high-speed pull, causing the cannon to jam, so the lowest rate of fire of 4000 rounds is generally used.

Even so, Nathan only dared to gently put his finger on the red fire button, and then the vibration of the fuselage began, even if it was only a few seconds, hundreds of shells were already flying out.

These flying shells hit the belly of the opponent's plane just right, and countless 20-mm shells entered it, "Boom! "In the sky, there was a loud bang.

In the early days, fighters used machine guns as weapons, but the power of machine guns was too small, and there were often hundreds of bullet holes and safe returns.

A 20mm cannon can tear a hole with just one shell, and a large number of 20mm shells are surging, and the fighter plane will explode in the air in an instant!

As soon as Nathan finished shooting, he pulled the lever and pedaled the rudder to avoid the debris, which was quite a dangerous distance.

After all, when the fighter begins to fight the cannon, it is almost a bayonet fight in the air, and the tail-biting attack is dangerous, not to mention that it is now a head-on attack, a little later, the Tomcat fighter will face the exploding fragments, and its own engine will also suck in countless fragments, and then start to catch fire.

Nathan dodged it perfectly.

The opponent was shot down on the climb, and Nathan turned sideways and dived, almost clinging to the edge of the flying debris, leaving the airspace.

Keep moving!

Guss in the back seat, who was extremely excited at this time, Major Nathan, was awesome!

During World War II, there would be a trump card that shot down hundreds of planes, which was rare, but there were still a lot of dozens, dozens, and according to the rules, as long as five planes were shot down, it could become a trump card.

It was the era of propeller planes, a fighter jet, almost the same as a tank, and now, with the jet age, fighters are already quite expensive, the number of fighters has begun to decrease, and it is impossible to have more shots down.

And what about Major Nathan?

Not counting on the battlefield in Vietnam, just now, in a reconnaissance flight, Nathan has shot down two fighters, which is half a trump card!

And if they want to return home, it is destined not to be smooth sailing.

The second Su-15, the pilot did not have the opportunity to parachute, Nathan at this time seemed to be Guan Gong riding thousands of miles, passing five levels, and killing six generals, wanting to return to his side, the voyage is still far away!

By this time, Nathan had already flown over Obrevisteye, in the southeast of Sakhalin, and below had already left the land and reached the sky over the ocean.

"PS mode." Nathan shouted, "Watch out for our targets in front of us. ”

Hearing this, Gus in the rear cabin was stunned, and out of absolute trust in Nathan, he immediately twisted the operating knob of the radar and adjusted it from PDS mode to PS mode.

PDS mode is pulse Doppler search, which is a state that works in pulse mode and uses the Doppler effect at the same time, mainly used to illuminate the road, and is the most common mode during combat cruise. At the same time, the distance is also very long, the maximum distance is more than three hundred kilometers, and it is in this mode.

In contrast, the PS mode, which is pulse search, (not p photos.) ）

This mode has no Doppler effect and only works in a state of pulse mode.

It can be said that this is a mode that began to be used after the emergence of radar, almost all airborne radars have it, there are no characteristics, it is basically equivalent to buying a battery for a remote control, and buying a set of sex toys for a set.

In PS mode, it is still "search", however, the detection range has dropped significantly, probably discounted in half compared to the PDS, only half of the detection distance, which used to be able to be found on three hundred kilometers, now it is one hundred and fifty kilometers.

In this way, it seems to be a chicken rib existence, which is useless, but in fact, it is necessary, because the pulse Doppler mode will use the Doppler effect to filter out some things, and this PS mode just avoids some blind spots in the PDS mode, such as the same direction and speed target, traversal track target, etc.

With the adjustment to PS mode, in an instant, there are four more bright spots on the screen, and the distance is only sixty kilometers!

These damned cunning Soviets!

When this reconnaissance plane went to the strategic missile launch base again, it definitely stabbed the hornet's nest, and at the same time that the two Su-15s in front intercepted it, four MiG-23s also took off in formation, and after they took off, they received the news that the target had begun to return to the southeast, so they flew straight to the east, intending to intercept it.

The ground guides are also very smart, the route they fly is perpendicular to the returning Tomcat fighters, so they are filtered by the processing system of the pulse Doppler radar, and when they fly directly in front of the target, they suddenly turn and directly enter the range of the R-23 missiles carried by the MiG-23.

Four MiG-23s are enough to form an interception line and shoot eight R-23 missiles, so I don't believe that this Tomcat fighter will not be killed!

It's a pity that as the Tomcat adjusted the radar mode, they appeared on the radar screen again!

"Four targets, sixty kilometers away." Gus shouted.

Came four goals? Nathan gritted his teeth: "TS mode, lock them all!" ”