Although it didn't take a long time to replace the engines of these three aircraft, Qiu Shi and his base also sent relevant technicians to Tiangong Technology and cooperate with Tiangong Technology's technicians to replace the three non-motorized engines.

This shortened the replacement time that originally took at least half a month, and in just one week, Tiangong Technology completed the replacement of the engines of these three aircraft.

As the engine was installed, Qiu Shi and his base immediately conducted test flights on these three aircraft. The results showed that whether it was a tg-001 or tg-002 turbojet engine or a tg-wsx2 aircraft, the overall performance of the aircraft was far beyond the ones before the engine was changed.

However, compared to the aircraft using the tg-wsx2 engine, the maximum speed can only reach Mach 2.8 and the maximum practical height is 28,500 meters.

The flight altitude and speed of the two aircraft using turbojet engines is much higher. Among them, the aircraft using the tg-001 engine can reach a maximum flight altitude of 3,200 meters and the maximum speed can reach Mach 3.3.

Such speed and altitude are surprising to Qiu Shi and others. After all, this speed is a veritable supersonic aircraft, and it is not a test aircraft or reconnaissance aircraft, but a veritable fighter aircraft.

The No. 16 fighter jet that used the tg-002 turbojet engine brought no longer surprises, but shocks to the Qiu and others.

After all, the thrust of the tg-002 turbojet engine is far from comparable to that of the 001 engine. Its single thrust is much higher than that of the tg-001 engine. Therefore, the No. 16 fighter with this engine can theoretically reach at least Mach 5 and the maximum flight ceiling, and theoretically, it can reach at least 36,000 meters.

Of course, this is only theoretical. In fact, during the test flight, the maximum speed of the aircraft only reached Mach 3.5. Shi Qiu and others ordered the test pilot to reduce the speed of the aircraft.

After all, this aircraft is only a transformation of the ordinary No. 16 fighter. Although during the transformation process, Wang Bin and Tiangong Technology have carried out a series of reinforcements and sprayed high-temperature resistant coatings, if the speed of the aircraft increases, the aircraft's body and the aircraft's skin will not be able to bear it.

Because when the speed of the aircraft reaches Mach 3.6, the high-temperature resistant coating on the aircraft's skin has already occurred. If the acceleration is carried out, the high-temperature resistant coating of the aircraft is likely to fall off. The consequence is that the skin of the aircraft will definitely melt at the high temperature generated at high speed.

As for the maximum flight altitude, during the test flight, the aircraft once reached a height of 36,500 meters, but this altitude is not a practical ceiling, because according to the aircraft records, when the aircraft reaches 33,000 meters, the aircraft's engine has already stopped, because at this altitude, the oxygen concentration contained in the atmosphere is not enough to allow the aircraft's engine to continue working, so when the aircraft flies to this altitude, the engine has automatically turned off.

Of course, the engine of the aircraft does not mean that the aircraft cannot continue to fly upwards. After all, the speed of the aircraft has reached about Mach 3.6. Therefore, after the aircraft is turned off, the aircraft flew to an altitude of more than 36,000 meters under the action of inertia before it began to slowly decline. When the aircraft altitude drops below 33,000 meters, the pilot can restart the engine again.

Of course, it is precisely because of this that the test flight of the No. 16 aircraft equipped with the TG-WSX2 turbojet engine shocked Qiu Shi and others. You must know that at such a high altitude and such a fast flight speed, most air defense weapons in the world are now inaccessible, unless they are used weapons and energy weapons to deal with satellites.

However, no matter whether it is the No. 16 fighter equipped with the Type 001 or Type 002 turbojet engine, it also has its own shortcomings, that is, its endurance.

You should know that the original No. 16 fighter has a very good maximum range, with a range of more than 4,000 kilometers. However, after installing the 001 or 002 turbojet engine, its maximum range at low altitude has been directly shortened by one third. Especially the one equipped with the 002 turbojet engine, the flight mileage at low altitudes is only less than 3,000 kilometers. Of course, if the aircraft is flying at high speed above 30,000 meters, the maximum straight-line flight mileage will reach about 4,500 kilometers, and such a flight mileage has reached a level similar to the original one.

As for the tg-wsx2 turbofan engine, its maximum range is nearly five or six hundred kilometers more than the original one.

In front of the three No. 16 fighter jets that were replaced by Tiangong Technology, after the test flight, the Qiu Shi and the soldiers at the base were very satisfied.

At the same time, Master Qiu also reported all the data after the test flight of the three aircraft to his superiors. Unexpectedly, this report attracted the extreme attention of his superiors, and also asked Master Qiu to place an order for 100 engines to Tiangong Technology for the transformation and replacement of the remaining batch of No. 16 fighter jets.

And unexpectedly, in this order, the number of turbojet engines far exceeds the number of turbofan engines, and the majority of the 002 turbojet engines at sea. From this we can see that the superior departments attach importance to high-altitude and high-speed or ultra-high-sonic aircraft.

Although the modified No. 16 fighter jet is not a stealth aircraft, and when flying more than Mach 3, the aircraft must be sprayed with a high-temperature resistant coating, it is undeniable that once the aircraft's speed exceeds Mach 3, the safety of the aircraft will be greatly increased, and the combat efficiency will be greatly increased, especially when fighting against the ground.

After Qiu Shi and Tiangong Technology signed the engine order again, the entire Tiangong Technology engine manufacturing department was running even more busy, which forced Wang Bin to purchase an engine production line from the mall again, and the annual output of this production line can reach more than 2,000 units. At the same time, the degree of automation of this production line is also very high, which greatly alleviated the pressure on Tiangong Technology in engine manufacturing capacity.

Of course, although the production efficiency of this production line is very high, the energy coins required to purchase this production line are not small. Fortunately, Wang Bin has accumulated a lot of energy coins now. For Wang Bin, he no longer feels sorry for purchasing such a production line.
Chapter completed!