readx; Today, in 1942, the term helicopter is not a new term for aviation personnel in various countries, as early as before the First World War, there were helicopter related tests, and now decades have passed, and many technical problems that restricted helicopters in the past have been solved one after another. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

One of the most critical is naturally the power problem, whether it is a fixed-wing aircraft or a rotary-wing aircraft, in fact, there is only one key point for these aircraft to be advanced or not, that is, the engine, and everything else is secondary. Because as long as the engine is powerful, even if the plane is made of bricks, it can fly, which is why countries with strong engines tend to use conventional layouts when developing various aircraft, because they really don't need to use all kinds of messy layouts to make up for the lack of engine thrust.

The most obvious example of this is that the United States and the "Ben", the engine level of the Americans is good enough, so most of the planes they make are decent, but all aspects of the surname can be relatively balanced, on the contrary, as the most outstanding representative of the aviation industry in the 40s, the zero fighter can not only reflect the advanced design level of the aviation industry in the aerodynamic layout, but also reflect the engine research and development capabilities of the "Ben". If it weren't for the fact that his engine was not up to par, he would not have made the Zero fighter like this even if he was stupid.

At the beginning, it was said that "in order to fight against the F4 fighter in service in the Chinese Navy, the Navy developed the Zero fighter for the surname, but based on the relatively backward engine level in China, it greatly limited the play of the surname of the Zero fighter, although it was barely able to fight the level of the F4 fighter, but as an aircraft developed by the Navy to suppress the F4 fighter, and the service time was many years later than the F4 fighter to achieve this effect. In this respect, the development program for the Zero fighter was a failure.

However, China is not the only enemy of this country, they still have to confront the United States and Britain, their Zero fighter in the battle from last year to the first half of this year, can be described as a brilliant battle, the US Navy's F4F and the British fighter deployed in Asia are not the opponent of the Zero fighter at all, which has forced the US Navy to speed up the development and service of a new generation of carrier-based aircraft, and the F4U carrier-based fighter has a small number of prototypes in the Pacific theater.

For the F5 fighter of the Chinese Air Force and the F8 fighter of the Navy, although the Americans and the Americans do not know much, these two aircraft were in large-scale service from 1940 to 1941, and they are a new generation of fighters to replace the F4 fighter.

However, it is also a big problem for me to develop more advanced fighters, and the most important limitation is the limitation of the engine.

On the fixed wing, the engine has become the biggest limitation on the research and development of new fighters in various countries, the United States and Britain have little pressure in this regard, although the Germans have good liquid-cooled engines in the early stage, but with the large number of turbochargers used by Britain and the United States, it is difficult for the Germans to continue to fight against the advanced fighters of Britain and the United States because of the lack of surname, especially at high altitudes. Needless to say, the level of aero engines is one of the lowest among the major belligerent countries. As for China, the level of air-cooled engines and liquid-cooled engines is still slightly inferior to that of Britain and the United States, but it is on par with Britain and the United States in the critical turbocharger. Therefore, at the level of piston engines, although there is still a gap, it can still be overcome. This has led to factors such as aerodynamic layout that will be greatly considered in the research and development of various aircraft in China, but there is no need to give up the strength and surname of the fuselage because of the lack of engine thrust like I said.

China's propeller aircraft are relatively mediocre in terms of surname, except for the B19, a nuclear bomb carrier, other combat aircraft rarely go to the extreme.

But then again, China's research and development of various new fighter jets is basically a few years ahead of other countries, China's F4 fighter and F5/F8 fighter are basically a few years ahead, and when the Americans can come up with a fighter to compete with F5 and F8 fighters, China has begun to equip jet fighters in batches, and continues to maintain the generation difference advantage in Chen Jingyun's mouth.

If the level of piston engine China can only rank third in the world, then China's jet engine level is undoubtedly the world's first, when Germany is still struggling to break through the 1,000-kilogram class of axial jet engines, when the British are still struggling with hundreds of kilograms of centrifugal jet engines, China's jet engine research and development program has been aimed at the 2,000-kilogram class of axial jet engines.

Whether it's a propeller fixed-wing aircraft, a jet fixed-wing aircraft, or a rotorcraft, there is only one most critical factor, and that is the engine.

This is especially true of helicopters, the concept of which existed before World War I, but why it wasn't until World War II that helicopters were put into practical use was because the engines were not up to par.

And to this day in 1942, the great progress of basic technology has greatly improved the level of the engine, so that the helicopter research and development of various countries is naturally on the formal, Germany has several models of helicopters put into use, the United States side of the VS300 helicopter has also completed the first flight, its improved version of the VS316 has been ordered by the United States Army Air Corps, numbered R4. However, in the first half of 1942, both the German and American helicopter development and service are in a relatively primitive state, although the German FA223 heavy transport helicopter surname can be excellent, but there are still many technical bottlenecks to be solved, and it is still in a state of research and development, and only a few prototypes have been produced. The R4 helicopter of the United States is more mature and reliable, a two-seat light helicopter, capable of carrying out search and rescue missions, but the R4 helicopter of the Americans is not mass-produced now, and the surname can be low, and the reliable surname is limited. So whether it is the R4 helicopter of the Americans or the FA223 helicopter of the Germans, they are still in a very primitive state.

And China, before 1940 did not have much lead in the research and development of helicopters, in the late thirties there were also companies developed and test flight several helicopters, among which the Shenyang-based Huatai Aircraft Company developed the HT-23 helicopter in the military when the flight show, although the Air Force and Army generals and the Navy expressed little interest, but let Lin Jingfei, who has always wanted to strengthen the air power of the guard division, see it, but it is extremely important, and finally signed a research and development contract with Huatai Aircraft Company, Three HT-23 helicopters were procured for equipment tests.

After receiving the support of the guard division, Huatai Aircraft Company was also saved from the brink of bankruptcy, which made Lin Jiaren, the general manager of this company and the designer of the HT-23 helicopter, very happy, and then after more than a year of improved design, an improved model of the HT-23 helicopter: HT-28 was launched.

This HT-28 helicopter has gotten rid of the simple appearance of the previous helicopter, at least in Chen Jingyun's opinion, this HT-28 is already like a helicopter, in the face of Lin Jingfei's request to equip the helicopter's plan, Chen Jingyun did not hesitate too much to approve.

Soon, the guard division incorporated the HT-28 helicopter into the official equipment, and gave it 'H1' according to the army number, which was not taken randomly, and the army also specified the number of various equipment, and the year of use of small arms and artillery, such as '937 semi-automatic rifle' and tanks and armored vehicles were initials, such as the T of the tank, the Z of the armored vehicle, and the M of the transport vehicle. For helicopters, the alphanumeric pattern is also adopted, and its h is the Latin initials of the helicopter. The first is the first officially equipped helicopter on behalf of the Army.

The H1 helicopter, designed and produced by Shenyang Huatai Aircraft Company, made its first flight in 1941 and officially entered service with the guard division in May 1942, with an empty weight of 1,300 kilograms, a maximum take-off weight of 1,800 kilograms, a maximum level flight speed of 140 kilometers, and a maximum range of 350 kilometers. Its core component, that is, the engine, is a piston engine developed and produced by Föhler Electric, which can output 400 horsepower. The whole helicopter design adopts a conventional design, in order to reduce the weight so many places are empty, the cockpit is semi-enclosed, thanks to the high-power engine provided by Föhler Electric, so that the H1 helicopter can carry three additional passengers or transport the same weight of cargo in addition to one pilot.

Although the guard division wanted to purchase a helicopter that could be used for fighter jets at the beginning, it was still difficult to find the problem, although the H1 helicopter could barely be equipped with aviation machine guns, but the combat surname in all aspects was not good, so the guard division had to give up the idea of using the H1 helicopter as a combat helicopter, but Lin Jingfei did not give up, he directly told Shenyang Huatai Aircraft Company to let them develop a combat helicopter.

As for the H1 helicopter, in Chen Jingyun's opinion, this aircraft is still very good to use as a search and rescue aircraft, especially on the sea or in jungle and mountainous areas, it should be good to search and rescue pilots or transport a small number of wounded.

Although the H1 helicopter was developed by the guard division at the beginning, it was also the first to be put into service on the guard division, but the guard division was mainly used to transport the wounded after it was equipped, and it also carried out some short-distance transportation tasks, personnel transportation tasks, and the number of equipment was not much

When he saw that the H1 helicopter was mature and available, Chen Jingyun directly instructed the navy, army and air force to set up their own helicopter units. Although according to the common concept of later generations, helicopters belong to the army aviation, but the helicopters of this year are just such an H1.

And the H1 is not a combat type of helicopter, not even a transport helicopter, it is just a light helicopter, its biggest role is search and rescue, and the second task is to transport a small number of wounded and personnel. The main application areas will also be in the jungle, mountains, and sea.

Therefore, this kind of aircraft is planned to be equipped by the navy, land and air, and the purpose is slightly different, the H1 helicopter equipped by the army is used to transport the wounded, the H1 helicopter of the air force and the navy has the same role, and it is used to search and rescue pilots, and the navy also intends to use helicopters to carry out anti-submarine operations, but these are still in the stage of testing and exploration, and when helicopters can become the main weapons of the military and affect the war situation, this world war has long ended.

A large number of new weapons that appeared in World War II, such as anti-ship missiles, anti-aircraft missiles, guided bombs and helicopters, are some weapons in the initial stage of development, although they have appeared and have great potential, but it is not they that really affect the direction of this world war, but those large number of mature and reliable weapons.