![]() |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
"Japan has set a new spaceflight record -- and unlike most of these feats, it's
defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." See: https://www.engadget.com/2018/02/03/...te-into-orbit/ |
#3
|
|||
|
|||
![]()
wrote:
"Japan has set a new spaceflight record -- and unlike most of these feats, it's defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." Everyone already knew that. What's the cost per pound of cargo? See: https://www.engadget.com/2018/02/03/...te-into-orbit/ No mention of cost. Sure, launching a small rocket is likely cheaper than launching a big rocket, but it's not ENOUGH cheaper. Just launch the little cargo on non-dedicated launchers, which is what we do now. -- "The reasonable man adapts himself to the world; the unreasonable man persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man." --George Bernard Shaw |
#4
|
|||
|
|||
![]()
Alain Fournier wrote:
On Feb/3/2018 at 7:02 PM, wrote : "Japan has set a new spaceflight record -- and unlike most of these feats, it's defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." See: https://www.engadget.com/2018/02/03/...te-into-orbit/ Cool. The entire SS-520 rocket fits into the Falcon Heavy fairing. And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. -- "The reasonable man adapts himself to the world; the unreasonable man persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man." --George Bernard Shaw |
#5
|
|||
|
|||
![]()
On Sunday, February 4, 2018 at 12:49:24 AM UTC-5, Fred J. McCall wrote:
Alain Fournier wrote: On Feb/3/2018 at 7:02 PM, wrote : "Japan has set a new spaceflight record -- and unlike most of these feats, it's defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." See: https://www.engadget.com/2018/02/03/...te-into-orbit/ Cool. The entire SS-520 rocket fits into the Falcon Heavy fairing. And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. But with miniaturization of electronics today, isn't that 4 kg payload very effective for many applications? |
#6
|
|||
|
|||
![]()
"Scott M. Kozel" wrote:
On Sunday, February 4, 2018 at 12:49:24 AM UTC-5, Fred J. McCall wrote: Alain Fournier wrote: On Feb/3/2018 at 7:02 PM, wrote : "Japan has set a new spaceflight record -- and unlike most of these feats, it's defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." See: https://www.engadget.com/2018/02/03/...te-into-orbit/ Cool. The entire SS-520 rocket fits into the Falcon Heavy fairing. And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. But with miniaturization of electronics today, isn't that 4 kg payload very effective for many applications? For very selective definitions of "very effective" and "many applications". But you're missing the point. A Falcon Heavy launch costs just under $100 million. So if your sounding rocket costs more than $10 thousand or so per launch (and it most certainly does) it is cheaper to launch 10,000 of the tiny payloads on Falcon Heavy than it is to launch them on a tiny launcher. -- "Millions for defense, but not one cent for tribute." -- Charles Pinckney |
#7
|
|||
|
|||
![]()
On Feb/4/2018 at 4:12 PM, Fred J. McCall wrote :
"Scott M. Kozel" wrote: On Sunday, February 4, 2018 at 12:49:24 AM UTC-5, Fred J. McCall wrote: Alain Fournier wrote: On Feb/3/2018 at 7:02 PM, wrote : "Japan has set a new spaceflight record -- and unlike most of these feats, it's defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." See: https://www.engadget.com/2018/02/03/...te-into-orbit/ Cool. The entire SS-520 rocket fits into the Falcon Heavy fairing. And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. But with miniaturization of electronics today, isn't that 4 kg payload very effective for many applications? For very selective definitions of "very effective" and "many applications". But you're missing the point. A Falcon Heavy launch costs just under $100 million. So if your sounding rocket costs more than $10 thousand or so per launch (and it most certainly does) it is cheaper to launch 10,000 of the tiny payloads on Falcon Heavy than it is to launch them on a tiny launcher. Unless you want a particular orbit or particular time in orbit. Which isn't something very unusual. It depends on the application, some satellites don't mind being in any orbit but not all. Alain Fournier |
#8
|
|||
|
|||
![]()
Alain Fournier wrote:
On Feb/4/2018 at 4:12 PM, Fred J. McCall wrote : "Scott M. Kozel" wrote: On Sunday, February 4, 2018 at 12:49:24 AM UTC-5, Fred J. McCall wrote: Alain Fournier wrote: On Feb/3/2018 at 7:02 PM, wrote : "Japan has set a new spaceflight record -- and unlike most of these feats, it's defined by what wasn't involved. The country's Aerospace Exploration Agency (JAXA) has successfully launched the smallest-ever rocket to carry a satellite into orbit, a modest SS-520 sounding rocket modified with a third stage inside its nose cone to get its payload into orbit. As you might guess, the key to the record was the tiny cargo -- the rocket was carrying TRICOM-1R, a three-unit cubesat measuring just 13.6 inches long. You don't need a giant vehicle when the mission hardware would fit in the backseat of your car." See: https://www.engadget.com/2018/02/03/...te-into-orbit/ Cool. The entire SS-520 rocket fits into the Falcon Heavy fairing. And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. But with miniaturization of electronics today, isn't that 4 kg payload very effective for many applications? For very selective definitions of "very effective" and "many applications". But you're missing the point. A Falcon Heavy launch costs just under $100 million. So if your sounding rocket costs more than $10 thousand or so per launch (and it most certainly does) it is cheaper to launch 10,000 of the tiny payloads on Falcon Heavy than it is to launch them on a tiny launcher. Unless you want a particular orbit or particular time in orbit. Which isn't something very unusual. It depends on the application, some satellites don't mind being in any orbit but not all. So it's a tiny launcher for a tiny niche (and thus relatively unimportant in the scheme of things). -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
#9
|
|||
|
|||
![]()
On Sunday, February 4, 2018 at 4:12:21 PM UTC-5, Fred J. McCall wrote:
"Scott M. Kozel" wrote: On Sunday, February 4, 2018 at 12:49:24 AM UTC-5, Fred J. McCall wrote: And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. But with miniaturization of electronics today, isn't that 4 kg payload very effective for many applications? For very selective definitions of "very effective" and "many applications". But you're missing the point. A Falcon Heavy launch costs just under $100 million. So if your sounding rocket costs more than $10 thousand or so per launch (and it most certainly does) it is cheaper to launch 10,000 of the tiny payloads on Falcon Heavy than it is to launch them on a tiny launcher. That would depend on how many payloads need to be launched and to where. How often would 10,000 small payloads need to be launched at the same and to the same place? One small payload to one particular place might be effective to launch on one small rocket. |
#10
|
|||
|
|||
![]()
"Scott M. Kozel" wrote:
On Sunday, February 4, 2018 at 4:12:21 PM UTC-5, Fred J. McCall wrote: "Scott M. Kozel" wrote: On Sunday, February 4, 2018 at 12:49:24 AM UTC-5, Fred J. McCall wrote: And can put up a whopping 4kg payload. That's around 0.007% of the payload of a Falcon Heavy. In other words, you could stick tens of thousands of such payloads on a single Falcon Heavy. But with miniaturization of electronics today, isn't that 4 kg payload very effective for many applications? For very selective definitions of "very effective" and "many applications". But you're missing the point. A Falcon Heavy launch costs just under $100 million. So if your sounding rocket costs more than $10 thousand or so per launch (and it most certainly does) it is cheaper to launch 10,000 of the tiny payloads on Falcon Heavy than it is to launch them on a tiny launcher. That would depend on how many payloads need to be launched and to where. How often would 10,000 small payloads need to be launched at the same and to the same place? How likely is it that some launch of some other payload won't have a few kilograms of extra capacity? THAT, after all, is the whole driver behind 'cubesats'; they're so small that they can essentially 'ride free' on other launches. One small payload to one particular place might be effective to launch on one small rocket. And you'll need to do that perhaps once every decade or so (which is why they're not making this TEST BED into a working launch system). -- "The reasonable man adapts himself to the world; the unreasonable man persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man." --George Bernard Shaw |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Japan launches 5th spy satellite | [email protected] | Policy | 0 | November 29th 09 02:08 AM |
NK rocket fails to orbit satellite | Pat Flannery | History | 26 | April 9th 09 06:12 AM |
CHINA Launches Satellite For Moon Orbit: First Step Toward Lunar Domination -- Or Ownership? | Balsina Twyst | Policy | 24 | November 3rd 07 11:03 PM |
What's the heaviest rocket the Crawlers can carry? | D. Scott Ferrin | History | 3 | September 19th 05 07:45 PM |
Orbital Successfully Launches Minotaur Rocket Carrying U.S. AirForce's XSS-11 Satellite | Jacques van Oene | News | 0 | April 12th 05 05:02 PM |