"This time, two days ahead of schedule, ten working days, these two girls completed it in ten days, this is the weekend without rest......"

Mu Feng was a little helpless, a little distressed, and got up and ran to the scientific research center.

Today's command ship Lanzhou and secretary ship Chongqing naturally followed.

Mu Feng ran to the scientific research center, Neptune pounced, Mu Feng hurriedly hugged him, and Sirius also followed and shouted: "Commander." ”

Mu Feng patted Neptune's back: "Why are you two working overtime again, didn't I say that it will be normal 8×5 in the future, you can't be idle all the time, just the two of you have been working......"

Sirius smiled and said, "Because scientific research is what we love in the first place, if the commander asks us to fight, then we won't be able to stand it for three days at most......"

Neptune also added: "If we don't have anything to do, we will get bored, and the intensity of the work is almost just right, and we won't be tired......"

"Uh......" Mu Feng thought for a while, "Forget it, I won't talk about you, you will control it yourself in the future, and when you are tired, you will go to rest, you don't have to wait for me to specifically order ......"

The two sisters immediately nodded in agreement: "Yes." ”

Mu Feng rubbed Neptune's hair, hugged Sirius in the past, and finally walked to the scientific research equipment, looking at the drawings of the J-20 that had been completed in reverse, as well as a large list of related technologies:

"Neptune, Sirius, after the end of your reverse engineering, you must be particularly familiar with the J-20, so in your opinion, is it difficult for the J-20 to get on the ship?"

As long as the flight equipment of the aircraft can meet the needs of the target, the lower the structural weight, the better.

Therefore, the structural strength of land-based aircraft can meet the normal take-off and landing of the airport runway.

Carrier-based aircraft are to be used on aircraft carriers, catapults are needed for take-off, and tail hooks are needed for landing.

Therefore, the structural strength of the carrier-based aircraft must withstand the tensile force of the catapult take-off and blocking the ship.

Land-based aircraft are placed directly on the aircraft carrier, and the tail hook may break directly if it is pulled up, because they do not have a targeted structural design.

In order for land-based aircraft to be put on board, the first thing is to increase the weight of this part of the structure.

This most basic structural strength problem is known to Mu Feng, Sky Starfish, and Neptune.

Therefore, what Mu Feng asked was actually the difficulty of the aircraft's aerodynamic shape, lift, weight and other aspects after adding the corresponding load-bearing structure.

Sirius smiled: "Aircraft design, especially carrier-based aircraft design, is a process of constant trade-offs and constant compromises between needs and reality.

"If the functions are complete, then the weight of the fuselage will definitely increase, the pursuit of stealth, the external payload capacity will be abandoned, the speed must be fast, and it will be more difficult to take off and land.

"Whether it is difficult to get on the ship depends on your requirements, the higher the requirements, the higher the difficulty, and the more you give up, the lower the difficulty."

Mu Feng couldn't help but smile and said: "Then I want all the performance indicators of the J-20?" ”

Sirius instinctively shook his head and said: "That can't be achieved, the design goal of the J-20 is very clear, she is a high-speed, heavy air superiority fighter."

"Because of the pursuit of high-altitude and high-speed performance, the J-20 fuselage has a large length-to-width ratio, the main engine wing sweep angle is relatively large, and the wingspan is relatively small, so that the speed reaches or even exceeds the F22 under the premise that the engine is not as good as the F22.

"Correspondingly, the high-altitude and high-speed performance is good, and the low-altitude and low-speed performance cannot be too strong.

"The carrier-based aircraft needs to catapult and take off, and the tail hook blocks the ship, so it is necessary to ensure controllability at low altitude and low speed.

"The better the low-altitude and low-speed performance, the easier it is to take off, the lower the landing kinetic energy, the less impact on the deck, and the lower the pressure on the arrestor system.

"In pursuit of low-speed performance, it is necessary to reduce the aspect ratio of the fuselage, reduce the sweep angle of the main wing, and increase the wingspan, which is contrary to the high-altitude and high-speed design, which will of course lead to the reduction of high-altitude and high-speed performance.

"In general, the original design intention of the J-20 is contradictory to the needs of carrier-based aircraft, and if you want to go on the ship, you must modify it in a large area, and there will inevitably be a loss of high-altitude and high-speed performance.

"Unless we have a stronger engine than the J-20, the 'J-20 carrier-based version' using the same avionics and engines will not be able to match the performance of the J-20."

Mu Feng sighed: "Okay, then you can only compromise and redesign, this must be a big project, you rest for a few days first, rationalize your ideas and then start work." ”

Neptune and Sirius nodded together, and then left the research center with Mu Feng.

When they came to the deck, several ship wives were wearing swimsuits and sunglasses, lying on the deck chairs under parasols, drinking drinks and chatting.

"It's so hot...... Neptune muttered subconsciously, looked up at the big sun in the sky, looked down at Mu Feng beside him, and suddenly changed into a swimsuit.

Mu Feng subconsciously glanced at her, and almost squirted out.

Neptune's swimsuit is more appropriate than a swimsuit.

Sky blue three-point swimsuit, it really has only three points.

The two pieces of fabric on the chest are only the size of a dollar coin, and the one in the middle of the legs below is a little bigger, and it is only about the same as an egg, and the sides are still tied.

Overall, it's almost the same as not wearing it, but it's more provocative than not wearing it.

Neptune winked at Mu Feng, then leaned sideways, swayed back and forth very exaggeratedly, and asked in a low voice with a smile:

"How's that, Commander, like? Lust? Impulsive? ”

Mu Feng only found out at this time that the pants under her were still T-shaped, and there was only one strap behind her buttocks, which was trapped in the gap between the two buttocks.

Neptune is a scientific researcher, and he designs his own clothes, which is a piece of cake, so he can play like this.

Mu Feng looked at Neptune's expression and tone and knew that she was definitely going to do something, so even if there was a faint fire rushing up in her body, she still deliberately said with a straight face:

"No desire! No impulse! ”

Neptune's eyes narrowed: "Commander, you're really not interested?" ”

Mu Feng nodded heavily: "No!" ”

"Good!" Neptune took a deep breath and deliberately shouted very loudly in a very sneering tone:

"Oh, it's a shame, Commander, you are not serious, you actually give people this kind of clothes, what is the difference between this and not wearing it!"

Neptune's voice was raised very high, so loud that all the shipwives who were basking in the sun not far away heard it, and they instinctively turned their heads to look at it.

Seeing Neptune's appearance and listening to her words, there were bursts of surprise in the crowd.

Someone's straw fell off, someone squirted juice, and someone's sunglasses fell to the floor.