Of course, compared with the other three turbofan No. 8 transport aircraft in the hangar, these three propeller transport aircraft also have their own defects, that is, the speed of these three propeller aircraft is not as fast as the other three. At the same time, they are far from being compared with the other three in terms of practical ceiling, but compared with the old model No. 8 transport aircraft, Just a little more.


    However, even so, the three No. 8 aircraft have also received the attention of their factories and even the military. After all, although the speed and service ceiling of the three aircraft are not much different from the old models, their carrying capacity and range can not be moved by the military.


    Of course, compared with the three electric transport aircraft No. 8, the other three turbofan transport aircraft No. 8 are not bad, although they are far from being compared with the electric transport aircraft No. 8.


    However, compared with the old model of No. 8 transport plane, it exceeds too much.


    The maximum flight speed of this turbofan No. 8 transport aircraft has reached 982 kilometers per hour.


    The maximum flight altitude is 15000 meters and the practical ceiling is 12000 meters.


    The maximum full load endurance is 7500km.


    The maximum practical load is 26 tons.


    Therefore, the practicability of this No. 8 transport aircraft is also very high, but in fact, the military and manufacturers do not pay much attention to this turbofan No. 8 transport aircraft.


    After all, compared with the No. 9 transport aircraft transformed by Tiangong science and technology, these two aircraft have the same volume, but there is still some gap between them and the No. 9 transport aircraft transformed by Tiangong science and technology in all aspects of performance.


    However, the military''s interest is not high, which does not mean that this aircraft has no other future. That is, in terms of civil use, this aircraft still has great uses, so the aircraft manufacturer did not give up the test flight of this aircraft.


    Of course, compared with the two modified No. 8 aircraft, in fact, the aircraft manufacturer is more concerned about the new aircraft R & D plan just submitted by their factory.


    According to the data submitted above, their factory is preparing to develop a large electric transport aircraft for both military and civil use, and a large six engine electric transport aircraft with a carrying capacity of about 110 tons.


    Of course, due to this plan, the aircraft manufacturer has just submitted it. So far, although their company has also made efforts in all aspects and hopes to be approved by the superior, their company does not have much confidence in this plan.


    After all, a large transport aircraft has been successfully developed in China, and its performance is also good. It can even be electrified to improve its transportation capacity.


    Therefore, for their aircraft manufacturer, the most important task at present is to test fly the two aircraft and collect all aspects of data.


    For example, today, the three electric No. 8 transport planes in this factory have a very important flight test mission. If this flight test mission can be successful, then this electric No. 8 aircraft will definitely be manufactured on a large scale.


    The content of this mission is to carry out the supply and airdrop mission of a base on the Northwest Plateau border, and the supply mission is still flying with 50 tons of supply, that is, three electric No. 8 transport aircraft will fly a total of 150 tons of materials to the northwest border.


    Although it is, this mission is very difficult. If the old model No. 8 transport plane goes, the accident rate is absolutely very high. After all, the environment at the plateau border is very complex. The plateau not only has thin oxygen, but also has very low temperature. It even flies over many snow mountains and areas with very changeable wind direction.


    So if it is an old model of transport plane No. 8, in fact, the pilots on board have made all preparations.


    However, the test pilots of the three electric No. 8 transport planes, or the crew, who are ready to go to the plateau border for replenishment, have full confidence in the three electric No. 8 planes.


    After all, compared with the old model, first of all, the body and body strength of the three electric No. 8 transport aircraft are higher, so it is naturally safer.


    At the same time, the power used is not fuel power, but electric power. Naturally, it will not reduce the power of the engine due to the rarity of oxygen on the plateau.


    Most importantly, the operating systems of the three electric aircraft have also been greatly improved, making the operation more convenient and easier to control the aircraft.


    It is for this reason that the crew are more confident in completing this task.


    As time goes on, the mission will begin soon. The captain of the whole fleet, the main pilot of unit 1, the test pilot and his crew boarded electric aircraft No. 1 and No. 8, while the other crew members No. 2 and No. 3 also boarded aircraft No. 2 and No. 3 one after another.


    And before long, the three planes left the hangar and flew smoothly into the blue sky.


    However, at this time, the interior of the three electric No. 8 transport aircraft did not carry goods, but empty. Therefore, the taxiing distance of the three electric No. 8 aircraft was very short, and the takeoff distance did not exceed 600 meters.


    For this mission, they will first fly the plane to a base not far from their factory, load supplies, add equipment batteries, and then go to the base on the plateau border.


    Because their factory was not far from the base where supplies were loaded, they reached the sky over the base in only ten minutes. Then, all three electric No. 8 transport planes landed in the base smoothly.


    Naturally, the personnel of the base immediately began to load goods for the three No. 8 aircraft.


    For this series of operations, the crew of the three aircraft seemed so relaxed. Even when the aircraft took off and landed, the pilots were very relaxed. Even on the way, the pilots chatted happily.


    Of course, their chat content is naturally related to Tiangong technology.


    Since the No. 8 transport aircraft will be loaded with nearly 50 tons of supplies this time, the whole base is very strange about the three new No. 8 aircraft, but they don''t ask much, or even discuss the three aircraft with each other. After all, as the personnel of the base, they are very clear about military secrets, And these three new models of No. 8 transport aircraft.


    Obviously, it''s a military secret, so they naturally don''t have too much discussion. Even the middle and senior levels of the base don''t discuss it too much. After all, they naturally know more about this aircraft than the following personnel.


    While the personnel at the base were loading goods for the three electric No. 8 aircraft, the crew of the three aircraft were chatting about the three aircraft.