danielchin
Junior Member
Re: PLAN submarines Thread II
Could be the booster rocket section of JL-2 recovered by fishermen acording to the news.
Could be the booster rocket section of JL-2 recovered by fishermen acording to the news.
PLAN Type 035/039/091/092 Submarine Thread
- Thread starter crobato
- Start date
Hendrik_2000
Lieutenant General
Re: PLAN submarines Thread II
Thanks engineer interesting news
Well comparing the the man standing next to the missile, sound plausible . Assuming the average male height in Northern China 1.75 m We can deduce that the missile is roughly 2-2.25 m Which what people think the diameter of JL2 should be
total length of missile should be around 13m Now the booster on the picture should be around 4-5m Is it 2 stage or 3 stage missile?
I didn't check the news but here it is bingo right on the button should be 3 stages But Chinese scientist Wang Zhenhua proposed 2 stages
Police immediately stepped forward to see that the unknown object as a large island of Tung Chin salvaged fishermen in nearby waters, and was cylindrical, about 4 meters, 2 meters in diameter, inside the hollow, the top cable line, the object color is light blue, emblazoned with
In late 1980s and 1990s, an academician of the Chinese Academy of Engineering named Wang Zhenhua (王振华) proposed a new theory typically for the JL-2 SLBM, called "(Free) Relaxation into Trajectory" (自由入轨). This theory was incorrectly translated and contains enormous technical and physical inaccuracies and no understanding of the rocket equation.
Based on this theory, JL-2 only needs two stages to achieve its intercontinental status instead of three. Conventionally, any type of ICBMs has three phases to finish its flight: (i) the boost phase, (ii) the mid-course phase, and (iii) the terminal phase. Wang's idea is to combine the first and the second phases into one, the passive-boost phase (助推段). Plus the final atmospheric reentry phase, therefore, in total the JL-2's trajectory only has two phases and two stages.
The first phase is based on the first solid-fueled rocket engine (first stage). The first stage passively launches the missile out of the atmosphere, and accelerates it into a speed in between the first (7.9 km/s) and second (11.2 km/s) escape velocities. When the missile is in this transition state, the first stage booster sheds off, and the missile automatically adapts its "free" trajectory and further reaches its maximum altitude (without a constant velocity); the dominating force here is just the earth's gravity. The second stage engine (liquid-fueled) then starts working.
Normally, an SLBM has three stages. Such design simplifies the structure of the missile and largely reduces missile's overall weight by reducing one stage. Additionally, it increases the atmospheric reentry velocity, which leads to more difficult interception, such as, by the NMD.
Thanks engineer interesting news
Well comparing the the man standing next to the missile, sound plausible . Assuming the average male height in Northern China 1.75 m We can deduce that the missile is roughly 2-2.25 m Which what people think the diameter of JL2 should be
total length of missile should be around 13m Now the booster on the picture should be around 4-5m Is it 2 stage or 3 stage missile?
I didn't check the news but here it is bingo right on the button should be 3 stages But Chinese scientist Wang Zhenhua proposed 2 stages
Police immediately stepped forward to see that the unknown object as a large island of Tung Chin salvaged fishermen in nearby waters, and was cylindrical, about 4 meters, 2 meters in diameter, inside the hollow, the top cable line, the object color is light blue, emblazoned with
In late 1980s and 1990s, an academician of the Chinese Academy of Engineering named Wang Zhenhua (王振华) proposed a new theory typically for the JL-2 SLBM, called "(Free) Relaxation into Trajectory" (自由入轨). This theory was incorrectly translated and contains enormous technical and physical inaccuracies and no understanding of the rocket equation.
Based on this theory, JL-2 only needs two stages to achieve its intercontinental status instead of three. Conventionally, any type of ICBMs has three phases to finish its flight: (i) the boost phase, (ii) the mid-course phase, and (iii) the terminal phase. Wang's idea is to combine the first and the second phases into one, the passive-boost phase (助推段). Plus the final atmospheric reentry phase, therefore, in total the JL-2's trajectory only has two phases and two stages.
The first phase is based on the first solid-fueled rocket engine (first stage). The first stage passively launches the missile out of the atmosphere, and accelerates it into a speed in between the first (7.9 km/s) and second (11.2 km/s) escape velocities. When the missile is in this transition state, the first stage booster sheds off, and the missile automatically adapts its "free" trajectory and further reaches its maximum altitude (without a constant velocity); the dominating force here is just the earth's gravity. The second stage engine (liquid-fueled) then starts working.
Normally, an SLBM has three stages. Such design simplifies the structure of the missile and largely reduces missile's overall weight by reducing one stage. Additionally, it increases the atmospheric reentry velocity, which leads to more difficult interception, such as, by the NMD.
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SinoSoldier
Colonel
Re: PLAN submarines Thread II
So after all these years the JL-2 hasn't entered service yet? And now we are getting insider information of a JL-3 being fired.
So after all these years the JL-2 hasn't entered service yet? And now we are getting insider information of a JL-3 being fired.
antiterror13
Brigadier
Re: PLAN submarines Thread II
So JL-2 has 2 or 3 stages ?
So JL-2 has 2 or 3 stages ?
Hendrik_2000
Lieutenant General
Re: PLAN submarines Thread II
Well the Russian Bulava is not in service either after 10 years. So what is the problem?
Well the Russian Bulava is not in service either after 10 years. So what is the problem?
SinoSoldier
Colonel
Two Type 094 variants
There has been talk about two Type 094 variants, the first one with 12 SLBM and the second one with 16 SLBM and no hump, as talked by military insiders.
Here is a supposed model
There has been talk about two Type 094 variants, the first one with 12 SLBM and the second one with 16 SLBM and no hump, as talked by military insiders.
Here is a supposed model
Re: Two Type 094 variants
But if the story is based on that model, then it is only a rumor and not true.
That model is actually a 1/200 scale model of the USS George Washington, SSBN-598, the 1st US Polaris missile SSBN launched in 1959 and decommissioned in 1985.
Renwal made the model of it, with the enterior so you could look inside.
Here is another model, displayed.
I have heard that there was to be a newer Type 094 with 16 missiles.
But if the story is based on that model, then it is only a rumor and not true.
That model is actually a 1/200 scale model of the USS George Washington, SSBN-598, the 1st US Polaris missile SSBN launched in 1959 and decommissioned in 1985.
Renwal made the model of it, with the enterior so you could look inside.
Here is another model, displayed.
SinoSoldier
Colonel
Re: Two Type 094 variants
Good catch on the model. But the news was supposedly from military insiders, one of which I recognize as a very reputable source.
There was even footages of it, but apparently those were gone.
I have heard that there was to be a newer Type 094 with 16 missiles.
But if the story is based on that model, then it is only a rumor and not true.
That model is actually a 1/200 scale model of the USS George Washington, SSBN-598, the 1st US Polaris missile SSBN launched in 1959 and decommissioned in 1985.
Renwal made the model of it, with the enterior so you could look inside.
Here is another model, displayed.
Good catch on the model. But the news was supposedly from military insiders, one of which I recognize as a very reputable source.
There was even footages of it, but apparently those were gone.
antiterror13
Brigadier
Re: Two Type 094 variants
Perhaps Chinese just copy and paste old American design for free
... but I guess still do the job well
Perhaps Chinese just copy and paste old American design for free
... but I guess still do the job well
Re: Two Type 094 variants
I know the Type 094 is out there with 12 missile tubes. I am waiting to see actual pics of the improved Type 094, if it exists, with 16 tubes.
The model is definitely a cut and paste of the older American George Washington Class SSBN model. And it was a good design for its time. They were at sea over 25 years. (1959-1985)Perhaps Chinese just copy and paste old American design for free
I know the Type 094 is out there with 12 missile tubes. I am waiting to see actual pics of the improved Type 094, if it exists, with 16 tubes.