20/2021: Fundamentals of Aerospace Engineering Part 1

 When everyone talking about aerospace, what do you think about it? Aerospace is how birds can fly and why we can build machine-like planes and rockets to meet our demands of "Human flying". Most of you might study some about air passes of objects in Physic class, but this is not what you think. Aerospace is more like a method that we use to design planes to be compatible with birds that we see since 2,000 years ago, but how we can make that object fly in the sky? 

    In the Renaissance, the most well-known artist like Leonardo da Vinci describes flying in his own methods. He said, "We should build a plane that acts exactly like birds." So he begins with many experiments with wood and papercrafts to be like bird wings. He also adds a lot of metal parts, that later become a bike, but in his time, it's a helper to move wings.

    After the end of the Renaissance, Sir Issac Newton was birth in science. He found the power of earth gravity from apple drop on his head which become Newton's 3 laws of forces. The plane and rocket working are in the first and second laws which are about how objects move by having force push in the direction. Newton also designs his own designated wings which are called Airfoils. The wind works as on the higher part, air will be cut as thinner than the bottom part which will cause lift.

    A century later, the Wright brothers begin to build a plan with 2 level wings. The plane work very well until the war begins. World war I or Great war is designated as a war of plane and tank combine. The plane is very useful throughout the war, so it becomes larger and larger. From that, World war II begins with a new generation of fighters with pistol engines. By the end of the war, the Jet engine was introduced by the German in He 178 and Me 262, a world-first jet fighter. during that time there are many scientists that design the engine with the same concept of air compressor to turbine and end as trust in the nozzle. the strongest engine is GE9X in being 777 jets.

    This day, there are other types of engines that started in World war II too. It's a rocket engine. A rocket engine is stronger than a jet engine because it doesn't have to care about what such in but caring about out as trust. It has been using to send out for rocket and space exploration. the cheapest version is Flacon 9.

    The plane can be used for escaping the sound barriers. What is a sound barrier? The sound barrier is the wall that the plane like Concorde and most jet fighters can do. It's will be a circling cloud around the plane with loud noise after 2 seconds. this will be effective in the fighting environment for a faster dog fight.

To be continued...

Source: Baghchesara, Ali. Fundamentals of Aerospace Engineering Beginners guide. Philadelphia: Random House, 1987