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Retro Pack

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Redstone Atlas Pack Required
Some or all of the parts and/or features on this page require the Redstone Atlas Pack in-app purchase.

The retro pack is a solid rocket motor attached to any kind of capsule. It is used to deorbit a capsule. Like the Solid Rocket Boosters and the Redstone Atlas Launch Escape System, it cannot be throttled or turned off.


Trivia[]

  • It doesn't have any engine heat.
  • It has three separate "separation force" indicators in its description. This was fixed in 1.5.8.2.
  • This part can be made as mini missiles.
  • In game, the retro pack has two boosters visible. However, in real life, it has three. (see 15-B Retropack)
  • The retro pack on the physical Mercury Rocket had funnels on it's nozzles, coming to a smaller point.
  • The retro pack has the longest solid rocket booster burn time,
  • The real-life retro pack has small red posigrade nozzles to help separate it from the Atlas booster; in-game there are no separation nozzles.
    The aft end of a mock Mercury Capsule, showing the red posigrade nozzles and the three main nozzles on the retro pack.

    The aft end of a mock Mercury Capsule, showing the red posigrade nozzles and the three main nozzles on the retro pack.

Mercury Atlas 15-B Retro Pack

Physical Retro Pack

Parts
Basics Free Parachute • Capsule • Heat Shield • Separator • Fuel Tanks • Hawk Engine • Valiant Engine • Kolibri Engine • RCS • Side Separator • Nose Cone • Side Nose Cone • Small Landing Leg
Career Peregrine Engine • Solid Rocket Boosters
6 Wide Free 6 Wide Fuel Tanks (6x2, 6x4, 6x6, 6x8) • 6 Wide Stage Separator • 6 Wide Heat Shield • 6 Wide Engine Base
DLC 6 Wide Nose Cone • 6 Wide Round Nose Cone • 6 Wide Fuel Tanks (6x16 m)
8 Wide DLC 8 Wide Aerodynamic Nose Cone • 8 Wide Round Aerodynamic Nose Cone • 8 Wide Fuel Tanks • 8 Wide Stage Separator • Heat Shield • 8 Wide Engine Base
10 Wide DLC 10 Wide Fuel Tanks • 10 Wide Stage Separator • 10 Wide Heat Shield • 10 Wide Engine Base
12 Wide DLC 12 Wide Fuel Tanks • 12 Wide Stage Separator • 12 Wide Heat Shield • 12 Wide Engine Base
Engines Free Hawk Engine • Valiant Engine • Kolibri Engine • RCS Thrusters
DLC Titan Engine • Frontier Engine • Ion Engine
Career Peregrine Engine
Aerodynamic Parts Free Parachute • Side Parachute • Aerodynamic Nose Cones • Aerodynamic Fuselages
Fairings Free Basic and 6 Wide Fairings
DLC 8, 10 and 12 Wide Fairings
Structural Free Small Size Structural Parts
DLC Large Size Structural Parts
Other Free Small Docking Port • Small Landing Leg • Probe • RCS Thrusters • Small Solar Panel • Small Wheel
DLC Medium and Large Docking Ports • Large Landing Leg • Ion Engine • Large Solar Panel • Large Wheel
Redstone/Atlas Redstone and Atlas Launch Escape System • Capsule • Retro Pack
Redstone Only Separator • Fuselage • Fuel Tank • Rocketdyne A-7 Engine
Atlas Only Separator • Adapter • Atlas Fuel Tank • Engine Adapter • Covers • Rocketdyne XLR-89-5 Engine • Engine base • Rocketdyne XLR-105-5 Engine
Legacy Parts
Temporarily Removed in 1.5 Electricity Batteries • Radioisotope Thermoelectric Generator
Removed in Old Versions Large Probe • Fairing Adaptor • Adapter
Upcoming Parts
Engines Vac 3 Engine • "Double 2" Engine • "Single 2" Engine • "Double 1" Engine • Titan 3 Engine
Crew Lander Can • Crew Seat • Flag
Other Fuel Pipe
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