After listening to Wang Bin''s words, Professor Dai said without thinking: "According to the county meteorological department, in addition to the bad weather tomorrow, the provision in the next few days is good, which is very suitable for flight test work. Therefore, I think it''s better to let the staff rest for one day tomorrow and carry out flight test the day after tomorrow. After all, these personnel who have carried out modification work have been very tired since this time!"


    "Well, let''s have a test flight the day after tomorrow and inform lieutenant lupolu. After all, as the military representative of the military in our Tiangong technology, we must participate in the test flight!" Wang Bin said.


    "OK, Mr. Wang! Wait a minute, I''ll inform Lieutenant Lu to participate in the flight test!" after Wang Bin finished, Wang Xu nodded and said.


    Soon, it was time for the test flight of the No. 9 aircraft. Early in the morning, Wang Bin, Professor Dai and others came to the hangar to check the situation of the aircraft, and lieutenant Lu also came to the hangar shortly after Wang Bin and others arrived.


    "Mr. Wang! What''s the situation? I think the weather in the morning is a little gloomy. Is there a test flight today?" asked Wang Bin just after Lieutenant Lu arrived.


    "Lieutenant Lu, the condition of the plane is very good and within the allowable range of the data. As for the weather, according to the data of the county meteorological department, although the weather is a little cloudy, it will clear up later, so there is absolutely no problem with the test flight!" said Wang bin.


    Sure enough, when it was a little more than nine in the morning, the overcast clouds in the sky had dispersed and the sun appeared in the sky.


    In this regard, Wang Bin and others immediately opened the hangar, then used a professional aircraft tractor to tow the No. 9 transport aircraft to the take-off point of the runway, and began to add fuel to the aircraft.


    Because this test flight is the first test flight of the aircraft, the time of the aircraft test flight will not be too long, that is, it will take more than ten or twenty minutes. Naturally, it is not necessary to fill up all the fuel of the aircraft, so the fuel filling will be completed soon, and the aircraft will also usher in the first test flight after modification.


    However, before they started to take off, Wang Bin received a call from the guard and told Wang Bin, Qiu Tuan and others that they were coming, and their purpose of coming to Tiangong technology this time was naturally to visit the modified No. 9 non motorized test flight.


    In this regard, Wang Bin naturally immediately asked the guard to bring Qiu Tuan and others to the runway.


    Just five or six minutes later, Wang Bin saw Qiu Tuan and his party of five or six people and said hello to them happily.


    Qiu Tuan and others came to the No. 9 transport plane to be tested, looked around the transport plane for several times, and then said to Wang Bin: "Mr. Wang, this No. 9 transport plane seems to be very different from the No. 9 transport plane we are using now!


    Not to mention anything else, just in terms of wing skin materials, it seems that it is no longer the original skin! There are many differences between the nose and the original. "


    "Yes! Qiu Tuan, because the weight of tg-s002 turbofan engine is much heavier than that of the original engine of this aircraft, and at the same time, it is much stronger in terms of thrust. With the original wing structure of this aircraft, it can not bear the weight and thrust of tg-s002 engine at all.


    Therefore, we have strengthened the overall structure of the aircraft, especially the wing and other key parts, so that the wing of the aircraft can bear the weight and thrust of tg-s002 engine.


    At the same time, because the load capacity of the aircraft will be greatly improved after the engine is replaced, we have also carried out a series of modifications to the interior of the aircraft, and even used our special materials of Tiangong technology in many places in the internal structure.


    Therefore, after the transformation, the self weight of the No. 9 transport aircraft is much heavier than the original. In the original time, the self weight of the aircraft was about 30 tons, but after the transformation, the empty self weight of the aircraft reached nearly 40 tons, nearly 10 tons heavier than the original.


    However, in terms of the maximum oil load, although there is a certain increase after the transformation, the increase is not much, about 25 tons.


    However, the maximum carrying capacity has been greatly improved, from 25 tons to about 35 tons.


    In other words, the maximum takeoff weight of the aircraft has reached about 100 tons at this time.


    In addition, the practical ceiling of this No. 9 aircraft has been much higher than the original, reaching 15000 meters, and the maximum cruise altitude is 10000 meters.


    There are also problems with the speed and endurance of the aircraft. In these two aspects, the aircraft has also been greatly improved.


    In terms of flight speed, before the transformation, the maximum flight speed of this aircraft was less than 600 km, but now the maximum speed and speed of this aircraft can reach 800 km. At the same time, in terms of cruise speed, it also reached 600 km / h. finally, in terms of endurance, before the transformation, I remember that the maximum endurance distance of this aircraft is less than 8000 kilometers, but now after the transformation, the maximum range of the aircraft has reached about 10000 kilometers.


    It can be said that the performance of this No. 9 transport plane has changed greatly before and after the transformation. " Wang Bin, Qiu Tuan and others looked at the transport plane and introduced some level data of the constructed No. 9 aircraft to them.


    After listening to Wang Bin''s introduction, Qiu Tuan and others were full of smiles. Obviously, he was very satisfied with the performance of Tiangong technology after the transformation of this No. 9 transport aircraft. After all, with a load capacity of 35 tons, it can carry most of the army''s armored vehicles. Even some light and medium-sized tanks already have the carrying capacity, How can this not satisfy them.


    You know, this No. 9 aircraft is just a tactical transport aircraft, not a strategic transport aircraft. It can have such a carrying capacity. In terms of tactical transport aircraft, its carrying capacity is not the strongest in the world, but also has been advanced in test flight.


    So he said: "Mr. Wang, you Tiangong technology are very satisfied with the transformation of this No. 9 aircraft. If this and future test runs are successful, maybe we will ask you Tiangong technology to help transform a number of No. 9 aircraft. After all, the transportation capacity of the old No. 9 transport aircraft is still not enough, and there are also some deficiencies in speed and range."


    At the same time, his heart is also very much looking forward to Wang Bin and Tiangong technology to help transform more No. 9 transport aircraft. After all, it has a carrying capacity of 35 tons and a maximum flight speed of 800 kilometers. In this way, this transport aircraft will be of great use. It can not only be used as a medium and long-range early warning aircraft platform, but also be transformed into a tanker.