Transmigrated as the Crown Prince

German helicopter units continuously transported engineers and materials needed to build pontoon bridges to the banks of the Maas River.

Just as the engineers were working hard to build a pontoon bridge on the Maas River, accompanied by the harsh sound of air defense sirens, a large group of black aircraft flew in the distance.

As mentioned earlier, the French Air Force is not as good as the German Air Force. In addition to the performance of the fighter planes and other reasons, another reason is that the two sides have different command and use concepts.

Under the theory of blitzkrieg, the Air Force will undertake the first wave of strikes against the enemy. The effect of the first round of bombing will directly affect the impact of subsequent armored force assaults. Germany has a dedicated Air Force headquarters for overall coordination and command, and has set up aviation wings and groups. , squadrons, squads and other combat units of various sizes, the execution of tasks is relatively flexible.

When carrying out bombing missions, the Germans attacked one after another, never giving the enemy a chance to breathe. The French Air Force's combat method is that a large group of aircraft come to bomb, and then leave after the bombing. The next time they come over, they have to wait half a day. The enemy can use this half day to gather troops to launch an attack.

The air commander of the BF-109F fleet, which had already been hovering over the fortress, issued the order. "Everyone throw away their auxiliary fuel tanks and prepare to fight. Our target is the enemy fighter jets, and the bombers are handed over to the Mosquitoes." During the last battle of crossing the Maas River near Liege, the bombers of the British and French coalition broke through the anti-aircraft fire on the ground. Intercepted and dropped bombs on the pontoon. Although the shitty accuracy of horizontal bombing did not allow the bomb to hit the pontoon, the German Air Force also saw a problem.

Because they have to deal with enemy fighter jets first, they often cannot spare time to deal with enemy bombers, which may allow enemy bombers to take advantage of them.

So this time they found helpers, which were mosquito bombers.

The Mosquito bomber was originally a multi-purpose bomber. In World War II, the British Mosquito bomber was the mainstay of British wartime multi-purpose aircraft. It has many improved types, such as photo reconnaissance aircraft, fighter bombers, night fighters, bombing guide aircraft, torpedo bombers, submarine hunter aircraft, day patrol aircraft, minelayers, trainer aircraft, special transport aircraft and so on.

The Mosquito adopts the "molded glue composite wood structure" invented by the Americans. First, a model is made, and then the spruce wood chips are glued and compacted, and then the compressed air is injected. After the glued material solidifies, it is taken out to become a light wood material. This material is made of The aircraft fuselage is far lighter than metal and traditional wooden fuselages. When the engine horsepower remains unchanged, the bomb load and flexibility of the aircraft using this material can be said to be a combination of bombers and fighters.

And compared to the current BF-1 machine gun, the Mosquito is equipped with four 20mm cannons, which can be said to be quite fierce.

Soon, the BF-109F fleet and the British and French fighter jets started fighting. The German pilots discovered that there were some new fighter jets in the opponent's fleet that they had not seen before.

"Be careful, it's a British Spitfire!"

During World War II, the BF-109 had four main model series, namely Bf-109E, Bf-109F, Bf-109G, and Bf-109K; correspondingly, the Spitfire also had four main models: Spitfire Mk1, Spitfire Mk5, Spitfire Mk9, Spitfire Mk14.

Their appearance time and performance are roughly corresponding, Bf-1k1, Bf-1k5, Bf-1k9, Bf-1k14.

The current opponent of the Spitfire Mk1 is the Bf-109F. This is like Tian Ji's horse racing. A medium horse is used against an inferior horse. Even if the inferior horse breaks its leg, it is impossible to outrun the medium horse.

More importantly, Yannick has already made a series of improvements to the BF109.

The original DB adopted the most fashionable direct fuel injection technology and continuously variable supercharging technology at the time.

Direct fuel injection technology allows the aircraft to fly without fear of negative G, while Merlin still uses conservative carburetor technology, which may stall under high negative G conditions.

The continuously variable supercharging technology can automatically adjust the supercharging ratio according to altitude, while Merlin uses a one-stage two-speed supercharger, which has poor adaptability to altitude.

It seems pretty awesome, but unfortunately, there is a price to pay for being awesome. Although the DB engine using these new technologies has achieved a temporary performance lead over the British engine, it has completely lost room for subsequent improvement.

Direct fuel injection is too advanced, causing the engine to be inefficient. Direct fuel injection was not truly perfected until the 1950s and 1960s. In addition, German engines do not pay attention to the float carburetor and cannot burn lean fuel, resulting in greater fuel consumption.

Moreover, spark plugs are prone to carbon deposits under high intake pressure conditions with direct fuel injection. High-grade fuel is needed to solve the problem, but high-grade fuel is the Achilles heel of the Germans.

Although Germany had an ample supply of high-quality Romanian crude oil during World War II, high-grade gasoline would not come out of the ground or be obtained through ordinary distilled liquor. It required an extremely developed chemical industry, otherwise it would simply be a waste. The marking number of German B4 fuel is only 87, and no matter how Germany improved during the war, the marking never reached 100.

At the beginning of the 1939 War, only the United States had the ability to produce No. 100 gasoline, and the British mainly purchased it from the United States. Although grade was not widely used to indicate gasoline performance at this time, the British required gasoline to have a 100/125 level. At the beginning of the Battle of Britain, the British Spitfires had already fully used No. 100 gasoline.

Therefore, Yannick vigorously developed the chemical industry and even poached a large number of relevant talents from the United States during the Great Depression ten years ago. Because he knew that the United States could sell it to Britain, but not necessarily to Germany. He might be willing to sell it in the early stage, but once the war escalates, the United States is likely to interrupt supply.

So you have to master this technology yourself.

Unexpectedly, this research took a full ten years. The scientific research department finally worked out a mass-produced fuel additive, tetraethyl lead, not long ago. The raw material is lead. Fortunately, Spain's Leocin is the second largest lead-zinc mine in Europe. , enough to supply them with the lead they need.

It won't be long before German aircraft can use high-quality aviation fuel with a label number reaching or exceeding 125.

He also ordered the cancellation of the BF109's shaft cannon, which not only eliminated the need to place the supercharger on the left side of the engine, but also added an additional stage.

Unfortunately, the frustrating thing is that no matter how it is improved, the too small body of the BF109 is always a bottleneck that cannot be broken through. If you want to break through, it is equivalent to designing a new aircraft.

However, Yannick feels that after such magical modifications, models below BF1k10 can barely compete with the Spitfire Mk14.

Of course, these are all things for the future. Almost all of the 30 Spitfire Mk1s that just entered the battlefield have been shot down. What puzzled the British pilots was that the German pilots seemed to know the performance of the Spitfire very well. The Spitfire pilot finally bit the tail of the German fighter plane, but was quickly thrown away. On the other hand, once the Spitfire is bitten, it will basically end up being shot down.