Efficiency Improvements

[RandomRocket]

This is my first medium Weight Re-usable Launch Vehicle.
It is capable of putting a 115 T into LEO, and into an eliptical Mars/Venus Orbit with refueling.

I wanted to know how i can improve this Rocket, so it performs better.
The TWR may be a little to high, but it won't work with smaller Engines.

 

[Chara-cter]

View attachment 24923 This is my first medium Weight Re-usable Launch Vehicle.
It is capable of putting a 115 T into LEO, and into an eliptical Mars/Venus Orbit with refueling.

I wanted to know how i can improve this Rocket, so it performs better.
The TWR may be a little to high, but it won't work with smaller Engines.

Very cool!
Too bad I'm on iOS so I can't use it (I don't have the DLC)

 

[Chara-cter]

View attachment 24923 This is my first medium Weight Re-usable Launch Vehicle.
It is capable of putting a 115 T into LEO, and into an eliptical Mars/Venus Orbit with refueling.

I wanted to know how i can improve this Rocket, so it performs better.
The TWR may be a little to high, but it won't work with smaller Engines.

Btw, can you show what inside the faring?

 

[SupremeDorian]

View attachment 24923 This is my first medium Weight Re-usable Launch Vehicle.
It is capable of putting a 115 T into LEO, and into an eliptical Mars/Venus Orbit with refueling.

I wanted to know how i can improve this Rocket, so it performs better.
The TWR may be a little to high, but it won't work with smaller Engines.

My tablet doesn't work right now so I can't test this, but it looks like the outer 2 engines on the first stage will run out of fuel before the inner engines. A solution to this is to connect all of those fuel tanks by putting a larger fuel tank at the bottom, and then put the engines on that. You might need to use multiple large tanks for this. This connects the fuel tanks so every engine takes from one fuel source.

 

[RandomRocket]

My tablet doesn't work right now so I can't test this, but it looks like the outer 2 engines on the first stage will run out of fuel before the inner engines. A solution to this is to connect all of those fuel tanks by putting a larger fuel tank at the bottom, and then put the engines on that. You might need to use multiple large tanks for this. This connects the fuel tanks so every engine takes from one fuel source.

That works as intended, they provide a massive Amount of Thrust, and the Core stage has enough TWR to carry it to Space and land them safely on Earth once they run out after 21.6 secounds.
I know that i could get rid of them as soon as they would run out of Fuel, but that would make the Recovery really hard.

 

[RandomRocket]

Btw, can you show what inside the faring?

Just a simple 115 T Payload, nothing special just 3 Fuel Tanks

 

[Blazer Ayanami]

That works as intended, they provide a massive Amount of Thrust, and the Core stage has enough TWR to carry it to Space and land them safely on Earth once they run out after 21.6 secounds.
I know that i could get rid of them as soon as they would run out of Fuel, but that would make the Recovery really hard.

So, why don't you get rid of them, like Boosters, If they run out of fuel So fast

 

[RandomRocket]

So, why don't you get rid of them, like Boosters, If they run out of fuel So fast

Because i want to recover them, this is a fully re-usable Rocket

 

[Chara-cter]

Because i want to recover them, this is a fully re-usable Rocket

Umm
What about the second stage?

 

[RandomRocket]

Umm
What about the second stage?

It has a little Parachute, and i leave about 800 KG of Fuel in it to deorbit it later.
Atleast if i use it for a LEO Delivery

 

[Tony]

View attachment 24923 This is my first medium Weight Re-usable Launch Vehicle.
It is capable of putting a 115 T into LEO, and into an eliptical Mars/Venus Orbit with refueling.

I wanted to know how i can improve this Rocket, so it performs better.
The TWR may be a little to high, but it won't work with smaller Engines.

This forum is a place of sharing. We are modest. The fact of sharing advances the constructions. Thank you you are here. welcome

 

[SupremeDorian]

That works as intended, they provide a massive Amount of Thrust, and the Core stage has enough TWR to carry it to Space and land them safely on Earth once they run out after 21.6 secounds.
I know that i could get rid of them as soon as they would run out of Fuel, but that would make the Recovery really hard.

I'm not saying get rid of them, I'm saying you should make them all feed from one fuel source so that the outer engines don't turn off before the inner ones. With my suggestion, you'll get more burn time out of the Titans and every engine will run out of fuel at the same time, thus increasing efficiency due to there being less dead weight.

 

[RandomRocket]

I'm not saying get rid of them, I'm saying you should make them all feed from one fuel source so that the outer engines don't turn off before the inner ones. With my suggestion, you'll get more burn time out of the Titans and every engine will run out of fuel at the same time, thus increasing efficiency due to there being less dead weight.

I have reworked the first Stage, and now it performes much worse.
I had to modify the second Stage to, because it needed a higher TWR, due to the inefficient first Stage.
the Titan 3B had 4.143t of Rocket per Ton of Payload, the Titan 2C only has 5.138.

I would like to see how efficient your Rockets are, just divide the Weight of the Rocket by the Weight of the Payload.

 

[Horus Lupercal]

My ideas for you dude

https://jmnet.one/sfs/forum/index.p...rs-consultancy-service.3215/page-2#post-63332

 

[RandomRocket]

My ideas for you dude

https://jmnet.one/sfs/forum/index.p...rs-consultancy-service.3215/page-2#post-63332

That would only give me about 1.38t more Payload.
so i have achieved (near) maximum Efficiency ?
I use a stupidly shallow Ascend Profile, which is not Realistic at all, and won't work at all if Stef fixes Drag in the next Update.
So that may be the Reason why it works so well

 

[Horus Lupercal]

That would only give me about 1.38t more Payload.
so i have achieved (near) maximum Efficiency ?
I use a stupidly shallow Ascend Profile, which is not Realistic at all, and won't work at all if Stef fixes Drag in the next Update.
So that may be the Reason why it works so well

That makes sense, gaining as much horizontal speed as possible whilst the base stage was still firing. Drag is a bawlbag and either doesn't make an appearance or hits you like you're flying through treacle.

But yeah, pretty much. It certainly wouldn't be worth completely rebuilding it for that little gain.

 

[SupremeDorian]

I have reworked the first Stage, and now it performes much worse.
I had to modify the second Stage to, because it needed a higher TWR, due to the inefficient first Stage.
the Titan 3B had 4.143t of Rocket per Ton of Payload, the Titan 2C only has 5.138.

I would like to see how efficient your Rockets are, just divide the Weight of the Rocket by the Weight of the Payload.

Could you provide some screenshots of your rework? My tablet isn't working so I can't view the BP file.

 

[RandomRocket]

Could you provide some screenshots of your rework?

Here you go.
I even ditched the Probe of the first Stage just to make it less inefficient.

 

[Horus Lupercal]

Here you go.
I even ditched the Probe of the first Stage just to make it less inefficient.

You may as well get rid of the landing attire as well then dude, you won't be able to re-use it

 

[SupremeDorian]

Here you go.
I even ditched the Probe of the first Stage just to make it less inefficient.

Ah, there's why it's getting less performance. What I was saying was something like this:

Those boxes at the bottom are the fuel tanks connecting the 2 fuel sources. This way, you can have those 4 engines like normal, and it should be more efficient.

 

[RandomRocket]

Ah, there's why it's getting less performance. What I was saying was something like this:
View attachment 24946

Those boxes at the bottom are the fuel tanks connecting the 2 fuel sources. This way, you can have those 4 engines like normal, and it should be more efficient.

That didn't change much.
This is (probably) the secound most efficient Rocket on the Forum, there's just the one that Horus made for the 100 and 1Up Challenge.
https://jmnet.one/sfs/forum/index.php?threads/100-and-1-up.3313/
but even he "only" got 4.015t per Ton of Payload.
So im only 0.128t below him, which is enough to be honest.