Chapter 224: Qinglong No. 2
But that's not all.
At 17 p.m. on the same day, and the state satellite launch center.
The first stage of a CZ-6R2 rocket entered the deceleration procedure, and the direction was adjusted to align with the recovery station.
This is the 11th recovery of the Long March 6 rocket "Yunkai" series, after 8 successful recoveries, 2 failures, and the latest 6 consecutive successful recoveries.
Obviously, the state of the Long March 6 has stabilized, and it can basically achieve a high recovery rate, but this time, everyone's hearts are as nervous as the first recovery.
Because this Long March 6 is not used for support leg recovery, but for grille rudder recovery.
R2 refers to a change in the way recycling is done.
This is paving the way for the recovery of the 6-meter and 11-meter rocket grille rudder in the future, which is not only expensive but also takes too long to prepare.
Although the Long March 6 may be more difficult because of its light weight, it is still much easier to use it for experiments.
Up to now, counting the iterations in the supercomputer, the "Yunkai" recovery control system has reached the sixth generation, and the simulated grille rudder landing has been successful 100 times, so this actual test has been carried out.
Compared to the past, the Long March 6 has a more stable recovery stance, descending at a smooth and uniform speed at a slight incline, diagonally approaching the recovery tower that has two support frames already open.
Then, in the midst of hundreds of pairs of expectant eyes, the CZ-6R2 crashed into the recovery tower without slowing down.
The hollow arrow body touched the steel and was instantly broken, and the remaining fuel escaped and was ignited by the tail flame, ending the recovery mission with a bright flame.
The loud bang was heard even by the nearby villages, and when I looked up, I could see a bright spot in the mountains in the evening.
……
"The second stage of the Xinyuan-3 rocket failed to recover for the first time, and it is suspected that there are cracks in the rocket body."
"The first attempt at the new Long March 6 recycling method failed, and the recovery tower was burned down by high temperatures, with no loss of personnel."
On August 12, 13, and 14, the Chinese camp failed three rocket tests.
The Long March 10 was a problem with the YF77, the Long March 6 preliminary investigation found that it was a sensor failure, and the Xinyuan 3 was ......
Guo Shen, Seryov, Androv and other high-level Xinyuan officials stared at the wreckage of the second-stage rocket that was fished up from the sea.
If it falls from a height of more than 200 meters, if it is on land, it must only pick up fragments, but the landing point is at sea, and the arrow body is basically intact, but it can no longer be used due to internal injuries.
The inspection report has been released, not the crack of the arrow body, the problem lies in the pressure relief port of the oxidant tank of the arrow body, this small detail has not been dealt with well, resulting in the pressure of the engine shutdown process continued to increase, breaking the thermal insulation layer.
This was Xinyuan's first rocket test failure, and although it was not a major issue, it still showed that the system was only technically reliable, and the system engineer who actually designed it was not a god.
But in the eyes of the outside world, especially NACA and a number of space agencies, they have breathed a sigh of relief.
The myth of Xinyuan's 100% success rate has finally been broken, and the space agency is two bad news, and it finally looks like a normal spaceflight.
Ma Yilong tweeted overnight @林ju to express regret for his recycling failure, and praised this failure as a "milestone" exploration and a "groundbreaking" step for recyclable rockets.
Rockdyne also appeared to the media and said that the YF77 is not as good as the J2 hydrogen-oxygen engine used in the second stage of the Saturn V half a century ago, and it is unreliable and backward in terms of design.
Even JAXA dares to take out its LE9 hydrogen-oxygen engine to show off, after all, the YF77 is lower in terms of data, isn't it?
The domestic response is actually good, and the online groups that have begun to occupy the mainstream of "rationality" did not have much criticism, but liked Lin Ju's Weibo post "Although the recycling failed, we have found the reason and obtained complete experimental data".
After all, XAP is never defeated, and a small failure is nothing.
Even the Long March 10 has not been subjected to too much pressure from public opinion, and it is still ahead of SLS overall, isn't it?
Long March 6...... It's not like you've never seen a recyclable rocket bomb.
In fact, as of August this year, more than 20 recyclable rockets have been blown up in the world, and China alone owns 7.
These 7 rockets came from four private aerospace companies, and they tried it themselves before they decided to buy Xinyuan's recovery system solution, and only one suborbital rocket succeeded twice because the maximum altitude was only 10 kilometers, and the rest of the rockets that were ready to enter orbit all failed.
The most outrageous one lost control when it was recovered and fell directly into the whale sea.
However, now they have stopped, and they have successively accepted Xinyuan's mature subsystem sales plan after June.
Because of the openness of the Aviation Development Commission, the number of private aerospace enterprises in China has increased to 17, ranging from deep space equipment to rocket manufacturing, and the capital and scale are much larger than the original world line.
After all, as long as you have money and can buy any key components, that is to test cost control and structural design, how difficult is it to enter the market?
In late August, Blue Sword Aerospace was ready to launch the "Qinglong II" rocket, with a diameter of 3.8 meters, 7 K120V engines in the core stage, a maximum take-off thrust of 875 tons, a take-off mass of 670 tons, and a non-recovery LEO capacity of 27 tons and a recovery capacity of 20 tons.
This is almost a strengthened version of the Falcon 9, except that 9 Merlin 1D engines are replaced by 7 K120V with greater thrust, and the second stage uses a more advanced Xinyuan 25-ton hydrogen-oxygen engine, with a particularly high load factor.
Falcon 9 is now 52 million US dollars, what about Qinglong 2? Their external offer is 350 million!
$57 million, but the cost per kilogram is only 76% of that of the Falcon 9.
Compared with the Long March 7, which also uses a 3.35-meter rocket body and has a capacity of 20 tons, the Qinglong 2 should be cheaper because it has fewer engines.
Of course, Qinglong No. 2 can offer such a cheap price is just a gimmick of current publicity and the private capital behind the scenes wants to seize the opportunity.
$57 million is certainly the lowest price after all aspects are combined, and there is something to be earned, but the profit margin is not too much.
Because the recycling control system is bought, the engine is bought, the rocket body needs to invest money, the second-stage engine must be bought every time it is used, the supporting facilities must also be bought, and the launch site must be rented......
But as long as you stick to it, when you make money and set up your team, the cost will drop a lot, anyway, Lin Ju feels that the profit margin is about 100%, and hard work can be achieved.
Lan Jian is considered to have relatively strong technical strength among the private brothers, but there are also those whose skills are not strong enough to produce miracles:
Evergrande Aerospace.
Just listen to the name to know which company invested, although there is nothing technical, but the funds are indeed sufficient.
From the rocket body technology to the engine, the direct purchase of the Aviation Development Commission is currently allowed to sell, the design scheme is bought, and the plant and personnel are also rapidly expanding with abundant funds.
Of course, the traditional BAT triumvirate is also on the move, and more than once the media has reported that they have the intention of entering the aerospace industry.
(End of chapter)