Mufeng's original two propeller aircraft are almost the limit of "piston propeller" aircraft, and if you want to continue to greatly improve performance, you have to change the "turboprop" engine.

The traditional propeller aircraft is a piston type, an internal combustion engine like an automobile engine, and drives the spindle propeller to rotate through the cylinder-piston-connecting rod, and the structure is quite complex.

The "turbo" propeller engine looks like a propeller, but it uses the principle of a jet engine, and the propeller rotates through a "gas turbine".

Compared to piston propeller engines, turboprop engines are simpler in structure, easier to maintain, and relatively quieter (of course, noisier than turbofans).

On top of that, turboprop engines have a higher power density, and for the same size, turboprops can make more than twice as much power as piston propellers.

The engine of Hellcat and Panda R2800 has a net weight of 1073 kg and a power of 2100 horsepower.

I have won three turboprop engine drawings: turboprop 5E, turboprop 6C and 6E.

Turboprop 6E engine, weight 1200 kg, rated 5400 hp, maximum 6000 hp.

The engine is more than 100 kilograms heavier than the R2800, but it delivers more than twice as much power.

The turboprop 6E is all the way from the old antique turboprop 6 decades ago, the Yun 8 uses the turboprop 6, and the Yun 9 uses the turboprop 6C.

Of course, decades of antiques may not be easy to use, B52 and C130 are decades old antiques, and they are still being hit.

All in all, the turboprop 6E is an engine that is completely sufficient for its current needs.

However, the turboprop 6E was originally an engine for transport aircraft and early warning aircraft, and it was used as a fighter engine, which needed to be modified in some targeted ways, and it would be better if it could continue to reduce weight.

This kind of technological transformation requires the establishment of a scientific research program.

Mu Feng looked at the three people next to him, Yuanwang 7, Sirius, and Neptune, all of whom were still concentrating on the two ship-based designs of the J-20.

Mu Feng didn't bother them in the end, and consumed the stored scientific research points to complete the engine transformation.

The final product: Turboprop 6E modified - combat version, weighing 1100 kg, with an electronic control system, rated output of 5500 horsepower, maximum output of 6000 horsepower.

Then Mu Feng found the turboprop 6E modification in the scientific research system, and developed a new fighter based on this engine and the original Panda.

First of all, the body should be enlarged as a whole to reach a body size similar to that of the Sky Raider, but it is designed as a fighter jet and has a different appearance from the Sky Raider.

Then for the more powerful engine, the corresponding body design adjustment is made.

Increase speed, increase range, increase load, increase climb speed, increase flight altitude and, if possible, maneuverability continues to increase.

Installing a basic modern radar avionics system requires adaptation to as many payload types as possible.

Since there is only one high-power engine, the propeller rotates in one direction, and the aircraft is prone to deviation, so a double-layer counter-rotating propeller is used to balance the torque.

List your own design goals, and let the scientific research system check the rationality of the design goals.

The system repeatedly simulates and calculates, gives modification prompts, and Mufeng repeatedly modifies the requirements according to the prompts.

After about an afternoon of tossing and turning, the design of the new aircraft was finally confirmed, and now it was necessary to take a name and save it.

As a naming waste, Mu Feng really used the name "Panda" when he designed the fighter based on the F8F Panda.

This turboprop aircraft enlarged on the basis of the Panda, Mu Feng thought for a long time, slapped his thigh suddenly, and wrote "Giant Panda".

F8F's panda is bearcat, which has nothing to do with our black and white dumplings.

Now after Mu Feng decided that the new plane was called Giant Panda, he immediately decided that he was rolling.

And, find the original plane and change the "panda" to "red panda".

There are two versions of the new aircraft Giant Panda, the first version of the Iron Eater, the engine is modified with a turboprop 6E.

As a fighter-bomber, the cruising speed is 700 km/h, the maximum speed is 860 km/h, and the practical ceiling is 12,000 meters.

The empty weight of the aircraft is 5 tons, the maximum payload is 4 tons, and the maximum take-off weight is 12 tons.

The armament consists of 4 20mm cannons, and a total of 9 hardpoints under the fuselage and wings, which can be used to mount rockets, missiles, guided bombs, aerial torpedoes, and radar pods.

The ultimate payload capacity is basically the same as that of the A1 Sky Raider, and the Sky Raider is useless with it.

Of course, when the giant panda is fully loaded at its limit, it can basically only be used as a bomber.

And the take-off and running distance is too long, so Mu Feng added a catapult device to it.

After the body size, the body stores more fuel inside, and the maximum range without external plug-in is 3000 kilometers.

The second is the rolling version, which uses a normal 3350 hp turboprop 5E engine, which is almost half the power compared to the turboprop 6EG.

Therefore, compared with the Iron Eater Beast version, the maneuvering ability, maximum speed, maximum height, climb speed, and loading capacity of the rolling version have been significantly reduced.

However, correspondingly, after reducing the power and speed, the aircraft consumes less power and stays in the air longer, so this can be regarded as a low-profile civilian version.

There is almost no difference in the appearance of the two aircraft, and Mu Feng can only make a difference in the paint.

The vertical tail and the side of the nose of the iron-eating beast version have a front paw holding down the stake and jumping for life, looking very flexible with a giant panda pattern.

The same place in the rolling version has been changed to a giant panda pattern squatting on the ground eating bamboo shoots.

After the design was completed, Mu Feng browsed the characteristics of the two aircraft again, confirmed that there was nothing to modify, and saved the design plan.

Then consume the existing aircraft equipment, complete the scientific research plan of the giant panda aircraft, and put the drawings into the manufacturing center for production.

Two new pieces of equipment have been produced overnight.

The next morning, Mu Feng gathered the battleships and battlecruisers brought from Fortress Pacina and replaced all their main guns with the new 420 mm version.

As before, Crimson directly uses the full version, and the Liberty Ship Girls temporarily use the normal version with a reduced bomb supply and cooling system, and then slowly upgrade the version for them in the form of rewards.

After all the replacement was completed, let Crimson take all the battleships and battle cruisers to the sea northeast of Newport, unfold the hull together, line up in a row, and test the performance of the new main gun.

More than a dozen battleships and more than 100 420-mm guns fired in turn like firecrackers, giving people a shocking shock of destroying the world in terms of sound, flames, and momentum.

The new 420 mm gun was designed and produced according to the standard of the original 380 mm main gun, and its power has been greatly improved compared with the 380 mm version, which has surpassed the 460 mm gun of the Yamato class.

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