Yesterday
All round topic of a small gain
Mounted hot search
April 2020
A junior high school is born
Article prosperous satellite launchs central researchers
Wrote a letter of nearly 1000 words
Alluded in the letter on March 16, 2020
Grow 7 armour Yao one carrier rocket
The flight appears unusual
The incident that emissive task suffers a defeat
This lets him times feeling is aching
Grow 7 armour Yao 3 times of one unusual deflagrate
But aching
In the letter more it is to comfort researchers
Cheer bosomy interest for them
"On the way that explores in aerospace
Failure is inevitable "
"Rocket unlike plane is same
Can have trial flight for many times "
"The problem is hard to avoid "
Return citing say
"Although grow 5 at that time Yao 2 suffer a defeat
Yao 3 fly however towering! Yao 3 fly however towering!!
A young adult resembles between utterance
Be full of the meaning of care
This thinking that this is is only " encourage letter "
But did not think of
Picture wind turns from the back
Change a part immediately
Entered professional field!
"Had watched a hair kinescope
When does my summary give this (reason) "
Good lord
Began an analysis to rise actually
Grow 7 armour Yao one carrier rocket
The flight appears unusual reason
Letter text (the section is chosen)
1.This second blast off a lot of new technologies need proof, be like, long 7 it is roll booster departs first, one class is in detached, and growing 7 nail is roll booster departs together with one class, after possible depart is successful, motor of rocket of before breakdown 2 class ignites successfully again, so I feel probably trouble spot can be locked up be in surely when two YF-115 engine works, 2 class engine malfunctions, engine thrust index is not stable, cause explosion, final rocket is in sky disintegrate.
2. resonance reason, after producing wind speed shear, bring about all if really go up in same frequency, after reaching its limiting value disintegrate produces explosion. ? ? ? ? ? ? ? ? ? ? ? ? ?
3.Possible meeting malfunctions because of a certain yuan of parts of an apparatus, especially attitude controls a system, bring about a rocket very likely flight attitude is flabby make rocket flight disorder, final rocket produces wrong attitude unusual generation explodes.
The pressure boost system that 4. still is engine of 2 class YF-115 likely appears breakdown, be like invalidation of pressure boost system, cannot maintain store box pressure boost, or because breakdown is brought about,be store box pressure brings about 2 class to be pressed to explode greatly too, cause the task to blast off suffer a defeat.
Summarize my point of view finally:
1.In emissive video, contrail of blaze of remaining part of the rocket below curtain of night is very apparent, appeared even it seems that the process of a paragraph of whereabouts, appeared to flash. If rocket contrail has deviation, so the problem may be being advanced centrally or breakdown of control system free captive animals brings about attitude out of control. Often be the immediate cause that the rocket causes because of place of orbit out of control;
2.In video, 3 minutes or so, the rocket appeared tremendous blaze, probable problem is centered on YF-115 engine, because engine of liquid oxygen kerosene is likely the technology is a little flabby still calm. Believe the problem goes to be here now probably!
Netizen: "Fierce, the hope of the motherland! The hope of the motherland!!
A such letters that are fully loaded with sincerity and hope for
Send about one week later
"Long march " Fan Ruixiang of 7 total stylist
And " long march " Meng Gang of 7 commander in chief
Answered a letter to this child personally
The to this child incoming letter in the letter thankses
And the response
"Do not see you age is small
Analytic inference has logic very much
Opinion is very distinctive also "
Do not talk about content
See this move that places letter and letter in reply only
Do not know why orbit is a bit wet
Be like former you are me
Mine is you later
This spanned the dialog of a times
Was full of sincerity and hope
The researcher writes in the letter in reply:
"After believing to be brought up
(you) can be motherland spaceflight career certainly
Contributive force "
Also carry this letter at the same time
Revealed them to serve as a researcher
In the condition after experience fails
"Everybody says to get not better than
Want to look for all problems and slight weak point
Adopt measure to improve
Finish new rocket production as soon as possible
The organization blasts off newly
Prove oneself with the success
Prove the actual strength of carrier rocket of Chinese new generation
Prove person of spaceflight of Chinese young generation can do accomplish sth! Prove person of spaceflight of Chinese young generation can do accomplish sth!!
Can see
As the staff member of a gleam of
They are bearing the weight of enormous pressure
But spaceflight spirit, never abandon!
"We can accede and carry on
Dean Qian Xuesen waits for person of older generation spaceflight
Leave our spaceflight drive
Cherish each minutes of each second
Try hard continuously
For construction of spaceflight powerful nation
Revive for the nation make due contribution! Revive for the nation make due contribution!!
Long march ignition of 7 A carrier rocket enters the space (Zheng Engong is photographed)
And be in on March 12 1 when 51 minutes
Our country new generation
Medium-sized carrier rocket of fast track liquid
"Long march " 7 armour carrier rocket
In emissive field of spaceflight of Chinese article prosperous
Hold in the palm start a test 9 satellites thorn defeats night sky
The satellite is entered smoothly book orbit
Emissive consummation! ! !
This resembles is another letter in reply
Saying it seems that
We did not abandon, do not have disappoint your expectation
The child of that incoming letter
Did you see?
We, succeeded!
Long march 7 A carrier rocket takes off (Wu Tong spit is photographed)
Outspread read:
"Long march " 7 armour (the following abbreviation " grow 7 nail " ) carrier rocket is academy of technology of Chinese carrier rocket be based on long 7 with what grow 3 armour series to develop " 2 class half " compose rocket, complete arrow overall length 60.13 meters (than growing 7 7.03 meters tall) , rocket takeoff quality makes an appointment with 573 tons.
Among them, core diameter of one class engine 3.35 meters, the engine of kerosene of YF-100 liquid oxygen that installed two thrust to be 120 tons of class, 4 diameters that bind above are added respectively for 2.25 meters roll booster installed engine of kerosene of liquid oxygen of a YF-100; Core diameter of 2 class engine 3.35 meters, add the engine of kerosene of YF-115 liquid oxygen that installed 4 thrust to be 18 tons of class; Engine of 3 sub level (accede basically the class of end of fluid hydrogen liquid oxygen that grows 3 armour series) diameter 3 meters, add the engine of liquid oxygen of YF-75 fluid hydrogen that installed two thrust to be 8 tons of class, have the capacity that start 2 times, achieved synchronism of 7 tons of earths to change course thereby locomotive ability, fill synchronism of our country earth changes course 5.5 tons - 7 tons between the blank of locomotive ability.
Grew 7 armour to accede to grow 7, the mature module that grows 3 armour series, have reliability cycle of tall, development is short wait for a characteristic. Serve as our country head new generation medium-sized fast track rocket, to fast track satellite emissive strategy layout has important sense. As the development of Chinese spaceflight career, long 7 will replace stage by stage long 3 become the main force with Chinese familial rocket, spaceflight of predicting future China exceeds the emissive task of 80% to will be finished by it, do not have before this any one model the rocket can be accomplished.
Zhang Yichen sends a letter textual:
Researcher letter in reply is textual:
Origin: In the center of the Youth League
