Chapter 233: Flight Test of Wind and Thunder (1)
Just after the German Ministry of Defense's tank bidding is over, another important task will be carried out at the Messerschmidt plant, that is, the test flight of the Thunder jet engine. After improvement, the wind and thunder jet engine basically solves the problem of cracks in the design life cycle of turbine blades, in the long-lasting test, it performs well, after calculation, its first flip life reaches 120 hours, has been basically usable!
Now there is an M30 business transport aircraft that has been converted into a test flight platform! The jet engine compartment section was mounted on the tail of the M30 transport aircraft, and the air intake duct was located above the back. In this era, there are many test equipment, and all the tests that can be saved are omitted, such as the simulated high-altitude engine test, which has no way to carry out the test, as well as the environmental simulation test, the bird swallowing test and so on! These tests are very complex and require a lot of manpower and material resources, and also require a long test cycle. For the wind and thunder jet engine, there is no need at all, after all, this is different from the time when a standardized development system has been formed later, and the wind and thunder engine is in a stage of exploration.
For example, in history, the German BMW 003 jet engine was tested through the belly of the German Ju-88 medium-range bomber. The Ju-88 medium-range bomber is a medium-sized aircraft with a maximum take-off weight of 14 tons, and there is naturally no problem with a BMW 003 jet engine with a thrust of only about 1,000 kg under its belly for testing.
However, it was only the beginning of 1933, and a 6-ton aircraft such as the M30 business transport aircraft was already considered a large aircraft, although a 2,000-kilogram thrust Thunderjet engine was installed in its tail for testing, which was a bit of a small aircraft carrying a large engine, but this was already the largest aircraft in the Messerschmidt factory. As long as the modification is in place. Be careful during the test flight, and there is basically no problem. On March 15, 1942, the jet engine 004A of the Junkers Engine Division made its first test flight on a 9-ton Bf-110 aircraft.
If all goes well, the Thunder jet engine can be installed on the M29 competitive aircraft for test flights soon without major problems on the test flight platform modified by the M30 commercial transport aircraft. That's a real competitive jet, and in the future, you can scale it up properly to design a real jet. There is still plenty of time, and there is still more than a year to go, and the 4th International Flying Competition has just opened, and the Dragon Soul Ordnance Consortium has time to make the M29 competitive aircraft more perfect.
The flight test of the jet engine requires the engine to work satisfactorily in a wide range of speed and altitude, including the entire speed and altitude range from zero to high subsonic speed and from sea level to 10,000 meters altitude, in addition to the engine's take-off thrust, cruising fuel consumption, thrust adjustment and other performance must be flown out in the flight test. Of course, because the M30 business transport aircraft itself is a piston engine propeller aircraft, its speed is far from reaching high subsonic speed, and the flight altitude cannot reach 10,000 meters, so on this flight test platform aircraft, it is not possible to completely fly out all the performance of the wind and thunder jet engine, and finally have to rely on the M29 competitive aircraft to complete this task.
The most important task of the M30 business transport aircraft flight test platform is to simulate most of the working conditions of the wind and thunder jet engine, after all, the limitations of the ground test vehicle are very large. It does not simulate the operation of the engine in real flight conditions, so now the Thunder jet engine has to be tested in flight tests. before it can be finalized. In fact, the performance and handling problems of the jet engine can be quickly exposed once the flight is tested, which also facilitates the adjustment and improvement of the engine, and the true service life of the engine cannot be completely determined by the ground test car. It also needs to pass the test of several jet engines for a long time to be reflected.
On the runway of the Messerschmitt aircraft factory, a modified M30 transport aircraft is quietly parked on the tarmac, and it is about to carry out a major mission: the first flight test of the Thunder jet engine! The fuselage livery of this aircraft is also special, with a blue belly. The upper part of the white fuselage, as well as the logo of the Dragon Soul Ordnance Complex, as well as the large red characters sprayed on the wings and fuselage "Wind and Thunder Jet Engine Flight Test Platform" are particularly conspicuous.
Of course, after the modification, the shape of this transport aircraft has also changed dramatically, and it looks a little weird. Because it has an extra black hole hole in the back of the air intake. The tail of the aircraft has also become round and bulging, and when viewed from behind, it is also a black hole, which is the tail vent of the wind and thunder jet engine. Although the plane has become very strange, it has a very important role, and this test flight is also dangerous! After the modification, the aerodynamic shape of the aircraft has changed, and no one knows whether it can be stable and reliable during the flight. Moreover, after installing a thunderstorm jet engine, in the process of its work, additional thrust will be generated, which is even greater than the pulling force generated by the two piston engines of the M30 transport aircraft to drive the propeller, even if the two piston engines reduce the power to the minimum, so that the speed of the aircraft will definitely exceed the original speed a lot, which is a test of the structural strength of the aircraft and the control of the aircraft.
Before the flight, the factory's technical engineers and ground crews began to seriously inspect the aircraft, after all, this was its first flight, and there could be no failures, not even if a rivet was loose! In the history of aviation, there have been many major accidents caused by the loosening of a small screw. In a certain year, a Boeing 737-800 passenger plane of "China Airlines" caught fire and exploded after landing at Naha Airport in Okinawa, Japan. It can be seen that any small problem can cause a major accident, especially for this flight test platform that is about to fly for the first time, it is even more sloppy!
Xiao Weiguo and Messerschmidt stood in front of the plane, looking at the busy figures of the technical engineers and ground crews, and they were also nervous! This first flight is related to the future of the wind and thunder engine! The problem of the engine turbine crack has just been solved, and they all hope that this time the first flight will be completed smoothly! (To be continued.) )