The Astrum 4 launch vehicle is a reusable two staged launch vehicle capable of putting up to 30,000kg or 30 metric tons to the outskirts of LEO (2,000km)

The first stage has a total of 6 grid fins that significantly help with atmospheric re-entry.
It's also equipped with 4 emergency parachutes used to slow down the craft substantially if you don't have enough fuel for completed suicide burns and landings.

The second stage has multiple multidirectional RCS nozzles with an ample amount of monopropellant to help you achieve your desired orbit as well as helps craft stabilization/orientation.

[Launch instructions]

  • Activate engine sets 1 and 2 in the action groups tab, lock heading to current and lunch.
  • Before staging, deactivate actions groups 1&2 and activate the Second Stage Engine (AG 3)

[Landing Tips]

Use both engine sets during the initial start of your suicide burn and deactivate one of the two engine sets as the TWR with all four engines can be a little much without a payload. If low on fuel, use emergency chutes.

[Sliders and Action Groups]

1 Engine Set 1
2 Engine Set 2
3 Second Stage Engine
4 Beacon Lights
5 Grid Fins (Slider 1)
6 Emergency Chutes
7 Antenna/Rotators (Slider 2)
8 Landing Gear
9 Solar Panels
10 RCS


  • Created On: Android
  • Game Version: 0.9.704.0
  • Price: $57,573k
  • Number of Parts: 322
  • Dimensions: 75 m x 7 m x 7 m


  • Total Delta V: 8.7km/s
  • Total Thrust: 12.5MN
  • Engines: 5
  • Wet Mass: 5.57E+5kg
  • Dry Mass: -120,955kg


Stage Engines Delta V Thrust Burn Mass
1 4 4.8km/s 8.4MN 2.7m 5.57E+5kg
3 1 3.9km/s 4.1MN 2.2m 2.41E+5kg


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