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- North Korea supposedly launched an ICBM, the Hwasong-14 to 2800km apogee on Jul4
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I am skeptical of all of this. The missile was 2-stage, video released by state media suggesting 4-nozzle first stage. Probably hydrazine base.
What all this means is 'butt-load of inert mass'. Generally for a long range missile/space launch rocket you want a 3-stage system to cut down on the inert mass which in turn allows for greater acceleration at the higher stages. It's a modification of an 18m long, 1.8m wide missile and seems to be based on a soviet IRBM that had less than half the range that DPRK is claiming. While that missile was half as long, there are severe diminishing returns on a 2-stage missile. Past a certain operational acceleration profile, you just don't really get much more out of adding length to the system; you're adding fuel to accelerate additional mass and the system barely breaks even. The idea that it would double the range of a missile by doubling its length seems highly unlikely to me.
And when the hourglass has run out, eternity asks you about only one thing: whether you have lived in despair or not.
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Could be that they're just using what's available, like those famous cubans who floated a pickup truck across to Florida.
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If they can put a man on the sun surely they can double the range by doubling the missile length.
I was a God, Valeria. I found it...beneath me. - Dr. Doom
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North Korea embellish a feat of theirs? No...
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RE_expert44 posted...
North Korea embellish a feat of theirs? No... basically my thoughts given we have the ability to track it i am wondering when we will be disputing their claims
And when the hourglass has run out, eternity asks you about only one thing: whether you have lived in despair or not.
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I'm shocked they haven't made a claim that they went to mars or the moon yet.
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lilORANG posted...
The mass is inert It doesn't make a bit of difference, guys. |
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What I heard on NPR was that the missile reached higher than the ISS, and that if you flattened the trajectory it would reach Alaska. Although, of course, I'm not sure if it would go as far if it had to go lower in the atmosphere. What do you think, Darkman? Or is it not that simple?
Darkman124 posted... i'm thinking that they launched an extra-long R-27 and are overstating the apogee achieved Oh ok nm
Everything has an end, except for the sausage. It has two.
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scar the 1 posted...
What I heard on NPR was that the missile reached higher than the ISS, and that if you flattened the trajectory it would reach Alaska. Although, of course, I'm not sure if it would go as far if it had to go lower in the atmosphere. What do you think, Darkman? Or is it not that simple? 1) missiles less than 10% the size of this one reach higher than the ISS. it is in LEO at 400km. this was supposedly 7x that. 2) if the altitude is real, yes it would reach alaska which is ~5700km from NK. it's a bit more complex than flattening the trajectory, more akin to an elliptical arc with a defined 'optimum' apogee for max range, but capable of going to higher apogees for less range
And when the hourglass has run out, eternity asks you about only one thing: whether you have lived in despair or not.
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- Boards
- Current Events
- North Korea supposedly launched an ICBM, the Hwasong-14 to 2800km apogee on Jul4
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