Chapter 108: Junker Trainer

Seeing that no one had any more comments, Juncker asked Vincent to hang up the blueprints of their trainer plane. Philip found that Juncker's training aircraft program was a bit similar to the later North American Airlines Texan trainers, because they were relatively large, and Junkers also used the same American Pratt & Whitney Hornet star piston engine, which had a power of 550 horsepower, which was much larger than BFW's training aircraft.

As soon as the three-sided diagram of such a large training plane appeared, the people in the entire conference room gasped! Where is this a training aircraft, it is clearly a powerful attack aircraft. The thick nose looked like a giant wine barrel, and in the middle of the huge fuselage was a cockpit separated by several metal strips.

Juncker wanted this effect, and he said calmly: "What you see now is the JU25 trainer designed by our Junkers, which uses an all-metal fuselage, a single engine, a lower wing, a rear three-point landing gear, and a tandem cockpit. The aircraft adopts an American Pratt & Whitney Hornet star piston engine, with a power of 550 horsepower, a four-blade torque conversion propeller produced by Dragon Soul Aircraft Manufacturing Company, with a length of 9.2 meters, a wingspan of 12.9 meters, a height of 3.65 meters, an empty weight of 1850 kg, a maximum take-off weight of 2450 kg, a wing area of 25.5 square meters, a 12.7 mm machine gun can be installed, and 200 kg of bombs can be hung outside. The design maximum level flight speed is 300 kilometers per hour, the endurance time is 3.5 hours, the range is 800 kilometers, and the ceiling is 5500 meters. ”

Philip is also wondering why the Junkers trainer was designed so big, you must know that the fighter jets at this time were not so big, and the Junkers did not manufacture trainers in history, but mainly engaged in transport aircraft and bombers. However, Juncker's plan does not seem to be in line with the national conditions for a country like Romania, so Philip is also a little complaining about this plan, and it seems unlikely that such a plan will be approved.

Juncker was clearly not very good at the design of the trainer, so he had to resort to the most daring design, hoping that the Romanian Air Force would adopt it because of its ground-attack capabilities. However, what he didn't know was that the Royal Romanian Air Force was also affected by the reduction in military spending, so this time they needed a relatively cheap and easy to use primary trainer aircraft.

Junker looked at the bottom and saw no reaction, then bowed and said, "Thank you, our Junkers company is finished." ”

Manecozi, commander-in-chief of the Romanian Air Force, stood up and said loudly: "We thank Mr. Juncker for his wonderful speech, and then welcome the representative of the Bavarian aircraft manufacturing company, also from Germany, to the stage, let us see what they have to make our eyes shine, I am personally looking forward to it!" After saying that, Manecozi applauded vigorously, and the others also applauded, to say that Juncker's transport plane plan is still good.

Philip walked onto the stage in amazement, with a confident smile on his face, and he seemed to have returned to a time in the twenty-first century, when he had also represented the Ordnance Industry Group in such a bidding meeting, so he was used to such a scene. However, the judges of the Royal Romanian Air Force below were a little disapproving, why did BFW send such a young man out, doesn't this look down on the Royal Air Force? How much can such a young person know about aircraft design?

Only the commander-in-chief of the Royal Romanian Air Force, Maconezzi, knew that this person was the honorary editor-in-chief of the famous Koo's Defense Weekly, the chairman of the Dragon Soul Aircraft Manufacturing Company, and the designer of the all-metal multi-blade torque conversion propeller, which must not be underestimated.

After Philip stood still, he took out two wall charts, stacked them and hung them on the wall, this time he was going to show the training plane plan first, which was also convenient for comparison with Junckers' training plane plan.

Everyone saw a slender trainer with three views on the wall. The most amazing thing is that this aircraft uses a distinctive front three-point landing gear.

Philip said without humility or arrogance: "Judges and experts, today I would like to talk to you about our two solutions on behalf of BFW. First of all, you can see our training aircraft program. The design of an aircraft, first of all, is to design the aircraft as low cost as possible, long service life, easy maintenance and use according to the requirements, the user's technical indicators are the starting point and direct basis for our overall design of the aircraft, and it is also the most direct measure for the user to review the design plan. Therefore, we have designed this lightweight and flexible training aircraft according to your country's needs for the use of trainer aircraft. ”

"This beginner machine uses a BMW 380 hp piston engine, equipped with turbochargers, 4-blade torque conversion propellers, tandem two-seater, retractable front three-point landing gear, and the front landing gear is a pillar type, which is reared into the front fuselage. The main landing gear is a half-wisher type, with inward storage into the landing gear compartment of the center wing. Monocoque construction. The entire fuselage is an all-metal structure with a smooth appearance. It adopts an all-metal double-girder lower wing, which is divided into three sections: the center wing, the left wing, and the right outer wing. The central spar is fixed to the fuselage, and the outer wing and center wing are detachably connected, and the outer wing has a 10-degree upward reverse angle. The trailing edge of the wing is fitted with normal flaps and ailerons, and all handling systems are soft to handle. ”

"The aircraft is designed to have a take-off mass of 1600 kg. The empty aircraft weighs 1,200 kg, including 300 kg for the power system, 650 kg for the structure and 250 kg for the equipment. The maximum fuel weight is 200 kg, and the maximum external weight is 100 kg. The wing area is 18 square meters, the wingspan is 10.25 meters, the height is 3.35 meters, the main wheel base is 2.95 meters, the estimated maximum range is 900 kilometers, the maximum level flight speed is 330 kilometers per hour, the cruising speed is 250 kilometers per hour, the endurance time is up to 4 hours, and the ceiling can reach 7000 meters due to the use of turbochargers. These data are written in the overall design of the plan in the hands of the judges, and the judges can take a closer look. Philip finished the training plan in one breath and waited to see how the judges reacted.

One of the judges exclaimed: "This is a good plan of yours, but what we don't understand is why use the front three-point landing gear?" ”

Philip laughed and said, "That's a good question! Why use the first three-point landing gear, I think most designers still don't understand, according to our research, although the rear three-point landing gear take-off and running distance is relatively short, but in various situations, the front three-point landing gear has a huge advantage over the rear three-point type. The aircraft with the front three-point landing gear has good stability in ground movement, because the center of gravity of the aircraft is located in front of the main wheels, which helps to prevent the aircraft from spinning on the spot when taxiing, and it is easier to maneuver when landing, and when the aircraft is moving on the ground, the fuselage is close to parallel to the ground, and the pilot's vision is also better, which is very important for the trainer aircraft. ”