RL10 Redux (Now Mac Compatible!)

Lemniscate Biscuit

RL10C-5-1 "Lemni"
Staff member
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MOTY 2023
#1
RL10 Redux

Screenshot 2025-06-02 114753.png

Above: The RL10B-2
RL10 Redux [will have] almost every RL10 variant -- sea level to vacuum, ascent to landing, chemical to nuclear this pack will have them all. Each engine is made by hand with specs all researched by me.

Specs

Gallery
Screenshot 2025-06-06 093600.png

First row, left to right: RL10A-1, RL10A-3, RL10A-3A, RL10A-3C, RL10A-3S, RL10A-3-1, RL10A-3-3, RL10A-3-3A, RL10A-3-3B
Second row, left to right: RL10A-4, RL10A-4N, RL10A-4-1, RL10A-4-1N, RL10A-4-2, RL10A-4-2N, RL10A-5
Third row, left to right: RL10B-2
Fourth row, left to right: RL10C-1, RL10C-1A, RL10C-1-1, RL10C-1-1A, RL10C-2, RL10C-2-1, RL10C-3
Fifth row, left to right: CECE Base, CECE High, CECE Methane


RL10s-2.jpg

These are some of the RL10's I plan on making, so stay tuned!
Changelog
1.1 (RL10-RO)
Updated engine specs. Visual overhaul.
Added the RL10A-5.
Added icon to mod display in the modloader mod list.

1.2
Engine nozzle diameters and lengths have been completely redone to be more realistic.
Adds the RL10A-3-3, RL10A-3-3A, RL10A-3-3B, RL10A-3C, RL10A-3S, RL10A-4, RL10A-4-2N AND RL10A-4 Methane.
New methalox tank for the RL10A-4 Methane engine.
RL10A-5 visual overhaul.
Engines have been ordered in the pick category from least to greatest model number in order to make finding an engine easier.
1.3
Engine plumes have been modified.
Adds the RL10C-1 and RL10C-1-1.
Part categories for the RL10A, RL10B and RL10C.
New mod image in the modloader.
RL10A-4-2N nozzle widened to be more realistic.
1.4
Fixed RL10A-3-3A heatbox.
1.5 (RL10 Redux)
Removed RL10-RO engines. Replaced with redone RL10A-3 and B-2 for RL10 Redux.
Adds the RL10B-2 and hydrolox tank.
RL10A-3 visual and realism overhaul.
New RL10 Redux part category.
New RL10 Redux mod logo.
1.5.1
Adds the RL10A-1, A-3-1, A-3-3, A-3C and A-3S.
Added blue attachments points.
Minor visual changes.
1.5.4
Adds the RL10A-3A, A-3-3A, A-3-3B, A-3C, A-3S, A-4, A-4N, A-4-1, A-4-1N, A-4-2, A-4-2N (fixed and extendable).
Minor visual changes.
1.5.5
Adds the RL10A-5, RL10C-1, RL10C-1A, RL10C-1-1, RL10C-1-1A, RL10C-2, RL10C-2-1, RL10C-3, CECE Demonstrator, CECE High and Methane CECE.
Minor visual changes.

>>>>>> D O W N L O A D H E R E <<<<<<
Any issues may be reported below. Questions and comments as well. Enjoy, and make sure to credit!


FOR ALL OTHER MOD-RELATED ISSUES PLEASE REFER TO THE BELOW:
Mods and installation: Questions and answers
 
Last edited:

Altaïr

Space Stig, Master of gravity
Veteran
Modder
Deja Vu
Hot Stuff
Swingin' on a Star
Atlas
Forum Legend
#4
Looks very interesting. It looks carefully balanced, even if their TWR is very high in regards of SFS standards. Thrust is ok, it's mostly because of their low mass. Right now that's probably a beast in terms of ΔV :p
 

GuHP20

《Sentinel》~ Pres Ben //|**|\\
Professor
#5
After a slew of issues, problems, and quagmires, I hereby present the beta of my first major modding project.
Enter RL10-RO
View attachment 113540


This beta pack includes the first major RL10A variants including the A-1 (shown above), the A-3 and RL10A-3-1 as well as the RL10A-4-1 and A-4-2. RL10B and C variants as well as the CECE are all to be made (and researched). This is, RL10-RO so all of these engines are realistic. Every one these engines have actual specifications and are realistically scaled to their real life counterpart. All engine dimensions are exact (hopefully). Pack includes its own hydrolox tank for the engines. BP edit to change values.

Please keep in mind that this pack, its engines, their specs and their designs are all subject to change as this is only a beta release.

Specs:
RL10A-1

Mass: 131 kg
Thrust: 13.4 t
Isp: 281.3 s

RL10A-3
Mass: 131 kg
Thrust: 13.6 t
Isp: 284.6 s

RL10A-3-1
Mass: 131 kg
Thrust: 13.7 t
Isp: 288.6 s

RL10A-4-1
Mass: 170 kg
Thrust: 19.6 t (dubious, subject to change)
Isp: 297.6 s

RL10A-4-2
Mass: 170 kg
Thrust: 9.8 t (dubious, subject to change)
Isp: 297.6 (dubious, subject to change)

Gallery
View attachment 113541
From left to right: Hydrolox tank, RL10A-1, RL10A-3, RL10A-3-1, RL10A-4-1, RL10A-4-2

View attachment 113543
These are all of the RL10's I plan on making, so stay tuned!

Any issues (which there definitely are) may be reported below. Questions and comments as well. Enjoy, and make sure to credit!
This looks amazing, so sad mods can't be used on mobile version
 

Lemniscate Biscuit

RL10C-5-1 "Lemni"
Staff member
Moderator
Ace
Modder
Tier 2 Ranker
Hot Stuff
Moon Maker
Atlas
MOTY 2023
#6
Looks very interesting. It looks carefully balanced, even if their TWR is very high in regards of SFS standards. Thrust is ok, it's mostly because of their low mass. Right now that's probably a beast in terms of ΔV :p
I spent 6 hours of my Chrismas break looking through 1960's NASA documents for all of these stats.
This looks amazing, so sad mods can't be used on mobile version
Thank you. I feel honored that you said this is amazing, especially from a long time member.
 

Altaïr

Space Stig, Master of gravity
Veteran
Modder
Deja Vu
Hot Stuff
Swingin' on a Star
Atlas
Forum Legend
#7
I spent 6 hours of my Chrismas break looking through 1960's NASA documents for all of these stats.
The effort is appreciable. I wasn't saying it's inaccurate though, I mostly spoke in terms of SFS balance.

Thank you. I feel honored that you said this is amazing, especially from a long time member.
I'm also a long time member, so that makes two of us :)
 

MonkeSpaceflight

GRAU 14D15
Cadet
Copycat
ET phone home
Voyager Quest
Floater
#8
This is sick! I think i'm gonna use it in a build i'm working on now. Love the attention to detail and realism in this. Noice job :)
 

Orion

Die-hard WALL-E fan.
Staff member
Moderator
Modder
Hot Stuff
Space Glider
Swingin' on a Star
Atlas
#9
Amazing. Words cannot describe how much I love this. And the fact that you put so much effort into this, even when you didn't think anything was working, is honestly more impressive than the mod. Good job.
 

Lemniscate Biscuit

RL10C-5-1 "Lemni"
Staff member
Moderator
Ace
Modder
Tier 2 Ranker
Hot Stuff
Moon Maker
Atlas
MOTY 2023
#10
Amazing. Words cannot describe how much I love this. And the fact that you put so much effort into this, even when you didn't think anything was working, is honestly more impressive than the mod. Good job.
Thanks.
 

Marmilo

Retired Staff / Scale Inspector
Veteran
Tier 2 Ranker
Hot Stuff
Space Glider
Copycat
Atlas
MOTY 2022
#15
After a slew of issues, problems, and quagmires, I hereby present the beta of my first major modding project.
Enter RL10-RO
View attachment 113540


This beta pack includes the first major RL10A variants including the A-1 (shown above), the A-3 and RL10A-3-1 as well as the RL10A-4-1 and A-4-2. RL10B and C variants as well as the CECE are all to be made (and researched). This is, RL10-RO so all of these engines are realistic. Every one these engines have actual specifications and are realistically scaled to their real life counterpart. All engine dimensions are exact (hopefully). Pack includes its own hydrolox tank for the engines. BP edit to change values.

Please keep in mind that this pack, its engines, their specs and their designs are all subject to change as this is only a beta release.

Specs:
RL10A-1

Mass: 131 kg
Thrust: 13.4 t
Isp: 281.3 s

RL10A-3
Mass: 131 kg
Thrust: 13.6 t
Isp: 284.6 s

RL10A-3-1
Mass: 131 kg
Thrust: 13.7 t
Isp: 288.6 s

RL10A-4-1
Mass: 170 kg
Thrust: 19.6 t (dubious, subject to change)
Isp: 297.6 s

RL10A-4-2
Mass: 170 kg
Thrust: 9.8 t (dubious, subject to change)
Isp: 297.6 (dubious, subject to change)

Gallery
View attachment 113541
From left to right: Hydrolox tank, RL10A-1, RL10A-3, RL10A-3-1, RL10A-4-1, RL10A-4-2

View attachment 113543
These are all of the RL10's I plan on making, so stay tuned!​

>>>>>> D O W N L O A D H E R E <<<<<<
Any issues (which there definitely are) may be reported below. Questions and comments as well. Enjoy, and make sure to credit!
What's the dry/wet mass ratio of the hydrolox tank?
 

Lemniscate Biscuit

RL10C-5-1 "Lemni"
Staff member
Moderator
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Modder
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MOTY 2023
#19
Version 1.1 is out now on GitHub and ready to download!
RL10 Gallery 2.png

RL10A-5 Plume.png

Changes:

  • Updated values for engine thrust and specific impulse
  • Adds the RL10A-5 (above).
  • Adds mod icon in the modloader mod list.
Screenshot 2024-03-03 121458.png
 
Last edited:

Orion

Die-hard WALL-E fan.
Staff member
Moderator
Modder
Hot Stuff
Space Glider
Swingin' on a Star
Atlas
#22
I can finally make a DC-X! Thank you!