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Indian media cheered: the fairing is delivered and the manned spacecraft is about to launch! Do you want a fairing?

India's manned space mission has made great progress, that is, the fairing of the manned rocket has been delivered, which means that the manned launch has entered the final preparation stage.

According to public information, the total height of the Indian manned spacecraft "Gaganyan" is about 7 meters. It has a two-cabin structure, consisting of a return cabin and a service cabin, with a total weight of 8.2 tons, which is a little heavier than shenzhou spaceship in China.

At present, only the GSLV mark3 rocket with a height of 43.43 meters and a diameter of 4 meters in India can launch Gaganyan spacecraft. The carrying capacity of the rocket in low earth orbit is about 10 ton, which is similar to that of China's manned rocket Long March 2F, but its own weight reaches 640 tons, which is more than that of Long March 2F 140 ton. ..

The delivery of GSLV mark3 rocket fairing means that the manned spaceflight project that has been postponed repeatedly has finally made progress. Prior to this, India has actually completed the test of water splashing on the sea of the spacecraft return module. At present, only two unmanned experiments are needed, and manned experiments can be carried out after success.

Of course, India's first manned plan has been postponed to 2024, and if successful, the first unmanned test will be conducted at the end of this year. If it doesn't go well, it's ... normal. Postponements are common anyway. It's strange not to postpone.

The fairing is an important part of rocket launch, which is mainly used to protect the launch load and avoid the influence of aerodynamic force, aerodynamic heating and acoustic vibration during launch. At present, almost every rocket launch in the world is equipped with a fairing.

Whether it is Russian Soyuz or China Shenzhou, manned spacecraft are placed inside the fairing. The only exception is Spacex's dragon ship, which was launched without a fairing. Of course, the "New Shepard" spacecraft with blue origin was launched without a fairing, but it was not in orbit.

The reason why the dragon spacecraft does not need a fairing is mainly because of the application of new technologies and materials. Dragon spacecraft not only has a very good aerodynamic profile and a very strict thermal protection design, but also integrates the escape system into the return cabin, so it can be launched directly without fairing.

Although the Indian spacecraft has adopted the same two-compartment structure as the dragon spacecraft, there is an obvious technical gap between them, and the launch process of the "Gaganyan" spacecraft still needs fairing protection.

Of course, this is not the most important thing for India. The important thing is to solve the problem first and become the fourth country in the world that can independently send people into space. After all, this is India's biggest space dream.