Maxi
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Prisma is a two-stage small satellite launcher for KSA, built from parts of my fictional rocket maker Purrline Rocketworks. The rocket is about 28 m tall and 2 m wide, follows the stock size classes and mixes with stock tanks and engines. It is inspired by Spectrum from Isar Aerospace.
Features
Parts
Performance
The engines burn liquid oxygen and propane at a mixture ratio of 2.7 and 149 bar. In a test flight the lift-off thrust-to-weight ratio is 1.4 and the upper stage reaches an orbit of about 181 by 200 km with fuel left. The textures keep the texel density of the stock parts, so Prisma does not look sharper or blurrier than a stock rocket.
All parts:
Installation
Version: 1.0.0 (validated against KSA build 2026.11.10.5801)
License: MIT for code and game data, CC BY 4.0 for meshes, textures and pictures
Source: GitHub
Download: GitHub Releases
Dependencies: Extended Propellants (required). Optional: Andoya Spaceport, a launch site with a pad for Prisma, and Facet by Purrline Rocketworks, satellites that fit the fairing.
My other mods: AdvancedFlightComputer | DeltaVMap | MeasureTools
Parts
- Stage 1 tank and interstage, 2 m wide.
- Engine bay with nine Altair engines, each with its own gimbal pivot.
- Altair and Altair Vac as single engines. Altair Vac has the longer nozzle for the upper stage.
- Upper stage with an Altair Vac, a tank and four RCS blocks.
- Fairing with a base ring and two halves that separate from the payload.
- Payload mass simulator for test flights.
- Ground set: a hold-down ring that releases at lift-off, and a strongback.
Performance
The engines burn liquid oxygen and propane at a mixture ratio of 2.7 and 149 bar. In a test flight the lift-off thrust-to-weight ratio is 1.4 and the upper stage reaches an orbit of about 181 by 200 km with fuel left. The textures keep the texel density of the stock parts, so Prisma does not look sharper or blurrier than a stock rocket.
All parts:
Installation
- Install Extended Propellants (required). It adds the propane that the Altair engines burn.
- Download Prisma from GitHub Releases, or install it with Borea, which installs Extended Propellants too.
- Extract into
Documents\My Games\Kitten Space Agency\mods\PurrlinePrisma\. - The game finds new mods on the next start. Enable Prisma and Extended Propellants in the mod dialog.
Version: 1.0.0 (validated against KSA build 2026.11.10.5801)
License: MIT for code and game data, CC BY 4.0 for meshes, textures and pictures
Source: GitHub
Download: GitHub Releases
Dependencies: Extended Propellants (required). Optional: Andoya Spaceport, a launch site with a pad for Prisma, and Facet by Purrline Rocketworks, satellites that fit the fairing.
My other mods: AdvancedFlightComputer | DeltaVMap | MeasureTools
Last edited:
