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#100
by
TrevorMonty
on 25 Aug, 2022 07:34
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As long as Antares cost price is same or cheaper than external LV then it's worth NGIS using Antares. Of course when they designed RD181 version didn't plan on being cancelled so soon for things out of their control.
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#101
by
Robotbeat
on 25 Aug, 2022 17:11
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.
Without reusability to lower costs, Antares will only ever launch Cygnus.
The question ultimately becomes "does Northrop Grumman want Antares to launch things other than Cygnus (and maybe occasional high-energy government launches)?" Because if Northrop buys Firefly (as many believe is on the agenda), they'll have MLV (née Firefly Beta) for the commercial market.
Antares isn’t very high energy, at least not the old version - why would it do a high energy launch?
Theyve long considered upgrading the upper stage to high energy liquid. Your question is like “why would NG want more money?”
I guess I meant “why would it *win* one”, but I see your point.
I was also thinking back to earlier speculation that they may build an "Antares 330 Heavy" variant with strap-on SRBs to further increase performance. Obviously, such boosters would basically make first-stage reuse impossible, but if they only did it for occasional launches, perhaps even using MLV first stages that have flown a few times already...
Or just strap on two more liquid boosters instead. Could reuse all 3.
Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
FH hasn’t flown as much because F9 is over twice as capable as planned. SRBs aren’t that cheap any more and they’re no more legos than LRBs.
A high energy liquid upper stage may be a better idea. Solves the rough-ride problem of a solid upper stage, too.
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#102
by
Jim
on 25 Aug, 2022 17:51
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
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#103
by
DanClemmensen
on 25 Aug, 2022 17:56
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_boosterBut, no, those huge SRBs are not off the shelf.
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#104
by
bad_astra
on 25 Aug, 2022 17:59
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
post-Bole, It would not surprise me if NG floats some kind of OmegA idea again, but no, not now, and definately nothing of that scale at Wallops.
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#105
by
Jim
on 25 Aug, 2022 18:47
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
Another case wiki is wrong
Delta used SRMs. Show me one piece of Delta documentation with SRB
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#106
by
whitelancer64
on 25 Aug, 2022 19:00
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
Another case wiki is wrong
Delta used SRMs. Show me one piece of Delta documentation with SRB
ULA uses "SRB" for the Atlas V, so there goes that argument...
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#107
by
Tommyboy
on 25 Aug, 2022 19:02
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
Another case wiki is wrong
Delta used SRMs. Show me one piece of Delta documentation with SRB
ULA uses "SRB" for the Atlas V, so there goes that argument...
Don't you get it? Everybody else is wrong, but not Jim.
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#108
by
Robotbeat
on 25 Aug, 2022 19:05
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That but unironically.
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#109
by
DanClemmensen
on 25 Aug, 2022 19:12
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
Another case wiki is wrong
Delta used SRMs. Show me one piece of Delta documentation with SRB
Apparently, those thingees on the side of an Arianne 5 are referred to as "boosters":
https://spaceflightnow.com/2017/09/09/electrical-problem-prompted-ariane-5-countdown-abort/and the Wikipedia article on the Arianne 5 uses the term 22 times. After I put the Wikipedia link my earlier post, anonymous user has modified the article to remove some stuff without references.
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#110
by
Jim
on 25 Aug, 2022 19:20
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
Another case wiki is wrong
Delta used SRMs. Show me one piece of Delta documentation with SRB
ULA uses "SRB" for the Atlas V, so there goes that argument...
Don't you get it? Everybody else is wrong, but not Jim.
Especially when it applies to your posts.
Jeesh. Two posters with reading comprehension issues
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#111
by
whitelancer64
on 25 Aug, 2022 19:29
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
Jim, I'm sure you are correct about the terminology in the context of your specific technical community. However, the general public seems to use "SRB" generically.
https://en.wikipedia.org/wiki/Solid_rocket_booster
But, no, those huge SRBs are not off the shelf.
Another case wiki is wrong
Delta used SRMs. Show me one piece of Delta documentation with SRB
ULA uses "SRB" for the Atlas V, so there goes that argument...
Don't you get it? Everybody else is wrong, but not Jim.
Especially when it applies to your posts.
Jeesh. Two posters with reading comprehension issues
"SRB" is very commonly used as a generic term for solid rockets.
e.g.,
Definition of 'solid rocket booster'
in American English
NOUN
a solid-propellant strap-on rocket used to accelerate a missile or launch vehicle during liftoff
Abbreviation: SRB
https://www.collinsdictionary.com/us/dictionary/english/solid-rocket-boosterIt does not exclusively refer to the Shuttle SRBs, not even in the launch industry.
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#112
by
GWH
on 25 Aug, 2022 19:32
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Why have an interesting conversation on a new partnership when we can instead get bogged down in pedantry
Call them Solid Rocket Engines and make everyone equally unhappy.
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#113
by
Jim
on 25 Aug, 2022 19:33
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Show me a SRB in this other than the SLS booster.
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#114
by
Jim
on 25 Aug, 2022 19:38
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"SRB" is very commonly used as a generic term for solid rockets.
e.g.,
Definition of 'solid rocket booster'
in American English
NOUN
a solid-propellant strap-on rocket used to accelerate a missile or launch vehicle during liftoff
Abbreviation: SRB
https://www.collinsdictionary.com/us/dictionary/english/solid-rocket-booster
It does not exclusively refer to the Shuttle SRBs, not even in the launch industry.
quite wrong
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#115
by
TrevorMonty
on 25 Aug, 2022 19:40
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Given how many times FH has flown not worth extra R&D. SRBs are off the shelf.
No, they are not. And they are SRM's. SRB is a Shuttle booster using a Shuttle SRM and it is also what ULA calls the Atlas V SRMs as configured for launch. It is not a generic term.
The GEM63 and XL are off shelf in that NG has production line for them.
How about SRT(solid rocket trampolines).
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#116
by
GWH
on 25 Aug, 2022 19:44
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Flamy Zoom Sticks
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#117
by
Jim
on 25 Aug, 2022 19:47
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The GEM63 and XL are off shelf in that NG has production line for them.
Likely ULA exclusive use.
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#118
by
whitelancer64
on 25 Aug, 2022 19:49
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Show me a SRB in this other than the SLS booster.
In fact, Jim, the ONLY reference to "solid rocket booster" in there is in regards to the CASTOR 120. The Shuttle SRBs are referred to as RSRM (Reusable Solid Rocket Motor).
Hoisted by your own reference.
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#119
by
TrevorMonty
on 25 Aug, 2022 19:50
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The GEM63 and XL are off shelf in that NG has production line for them.
Likely ULA exclusive use.
Omega was going to us GEM63XLT.
