Kiloton Club

Mars Pathfinder

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That cube is the payload
wait the rules in K.T. Club is that the payload must not been used as 2nd stg or what (since that's your payload and it must be 1k)
 

James Brown

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wait the rules in K.T. Club is that the payload must not been used as 2nd stg or what (since that's your payload and it must be 1k)
Oof I told you I am worst at building blueprints but I want to give it a try
 

Mars Pathfinder

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Oof I told you I am worst at building blueprints but I want to give it a try
why don't ya try the payload first before the assembly of the Launch Vehicle (payload first so that you could count exactly the mass of it)
 

Horus Lupercal

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Oof I told you I am worst at building blueprints but I want to give it a try
That's not about building blueprints. It's about reading the rules before you start. What he is saying is in the rules at the start of this thread.
 

James Brown

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That's not about building blueprints. It's about reading the rules before you start. What he is saying is in the rules at the start of this thread.
I've read the rules before I start, I am not trying to against the rules, also, Where is the rule of "the payload must not been used as 2nd stg or what (since that's your payload and it must be 1k)"?
 

James Brown

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Payload must be transported all in one go does that means the 2nd stage must not have engines?
 

Marmilo

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I've read the rules before I start, I am not trying to against the rules, also, Where is the rule of "the payload must not been used as 2nd stg or what (since that's your payload and it must be 1k)"?
You have to have 1 kt in orbit. You don't cos you burnt most of the fuel.
 

James Brown

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You have to have 1 kt in orbit. You don't cos you burnt most of the fuel.
I did put 1k in orbit, but it just inc engines, hopefully I can send that payload without engines
 

James Brown

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It means you should have done the maths, assuming you read the 1kt rule at the beginning. :)

We are forgiving though, just make it better, double check it is 1kt, and submit it.
OK
 

Horus Lupercal

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Where is the rule of "the payload must not been used as 2nd stg or what (since that's your payload and it must be 1k)"?
You need to transport a payload of 1 kiloton (1000 tons) into orbit.
I'd say it's pretty clear here. You need to have 1000t in orbit. You haven't got 1000t in orbit, even if you included the engines.

Bearing in mind that last picture is at 1300m/s at 78% fuel. You've another 350m/s before you make orbit. That'll cost you a fair bit of your fuel. So you'll have around 500-600t in orbit, even if you accounted for the engines.

If you're not going to have a separate payload, then you can account for the weight with the second stage as well, like you have. But that remaining weight of fuel, the dry mass and the engines needs to equal 1000tons. Which you haven't.
 

James Brown

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I'd say it's pretty clear here. You need to have 1000t in orbit. You haven't got 1000t in orbit, even if you included the engines.

Bearing in mind that last picture is at 1300m/s at 78% fuel. You've another 350m/s before you make orbit. That'll cost you a fair bit of your fuel. So you'll have around 500-600t in orbit, even if you accounted for the engines.

If you're not going to have a separate payload, then you can account for the weight with the second stage as well, like you have. But that remaining weight of fuel, the dry mass and the engines needs to equal 1000tons. Which you haven't.
Ok Horus
 

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Time to revive this thread with my last creation:
Screenshot_20210117-002709_Spaceflight Simulator.jpg

Screenshot_20210117-002643_Spaceflight Simulator.jpg

That beast weighs 14 kton without the payload, and is able to hold a full build space in its fairing.

It is its first flight, time to test it.
Lift-off!
Screenshot_20210117-002800_Spaceflight Simulator.jpg Screenshot_20210117-002828_Spaceflight Simulator.jpg Screenshot_20210117-002852_Spaceflight Simulator.jpg

The launcher quickly gains speed:
Screenshot_20210117-002949_Spaceflight Simulator.jpg Screenshot_20210117-003020_Spaceflight Simulator.jpg
Each of those boosters have 18 Titan engines. With the main core, that's 20 ktons of thrust overall.

Then, booster separation:
Screenshot_20210117-003037_Spaceflight Simulator.jpg Screenshot_20210117-003046_Spaceflight Simulator.jpg Screenshot_20210117-003103_Spaceflight Simulator.jpg

Now the main core with its 56 Frontier engines is alone.
Fairing separation:
Screenshot_20210117-003210_Spaceflight Simulator.jpg

And orbit:
Screenshot_20210117-003231_Spaceflight Simulator.jpg Screenshot_20210117-003332_Spaceflight Simulator.jpg

The payload weighs 3600 tons, it corresponds to a build space completely filled with fuel tanks. And I could even have done better, I had 20% of fuel left.

Mission accomplished :cool:

It works better than the SLS...
 

Falcon231

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Time to revive this thread with my last creation:
View attachment 53661
View attachment 53662
That beast weighs 14 kton without the payload, and is able to hold a full build space in its fairing.

It is its first flight, time to test it.
Lift-off!
View attachment 53663 View attachment 53664 View attachment 53665

The launcher quickly gains speed:
View attachment 53666 View attachment 53667
Each of those boosters have 18 Titan engines. With the main core, that's 20 ktons of thrust overall.

Then, booster separation:
View attachment 53668 View attachment 53669 View attachment 53670

Now the main core with its 56 Frontier engines is alone.
Fairing separation:
View attachment 53671

And orbit:
View attachment 53672 View attachment 53673

The payload weighs 3600 tons, it corresponds to a build space completely filled with fuel tanks. And I could even have done better, I had 20% of fuel left.

Mission accomplished :cool:

It works better than the SLS...
Big thrust
 

Altaïr

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Haha, I’m pretty sure that thing can lift a couple of SLSs to orbit.
Oh please, don't give me that kind of ideas... You know that really makes me want to try it o_O

...

No, I won't make a SLS replica just for that... :confused: