FL-R25 RCS Fuel Tank

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FL-R25 RCS Fuel Tank
Part image
Monopropellant tank by
Jebediah Kerman's Junkyard and Spacecraft Parts Co

Radial size Small
Cost (total) 330.00 Funds
(dry) 186.00 Funds
Mass (total) 0.56 t
(dry) 0.08 t
Drag 0.2
Max. Temp. 2000 K
Volume  ?
Impact Tolerance 12 m/s
Research Advanced fuel systems.png Adv. Fuel Systems
Unlock cost 4 600 Funds
Since version 0.11.0
Part configuration RCSFuelTankR25.cfg
Monopropellant 120 Units of fuel

The FL-R25 RCS Fuel Tank stores monopropellant for a spaceship's RCS.


The fuel tank provides fuel for all RCS thrusters of the ship. There is no need to place the thrusters directly on the tank. If there are several RCS fuel tanks the lowest will be used first to avoid jettisoning full tanks while preserving empty ones. Similarly, RCS tanks are emptied radially from the outside in. Within a stage, radial position takes precedence over vertical.

Labels on the fuel tank say ominous words like DANGER EXTREME COLD or FILL POINT

Product description

These fuel tanks monopropellant for RCS thrusters. New advances in plumbing technology made it possible to route RCS lines to any point in the ship. So unlike liquid fuel tanks, RCS Fuel tanks can be placed anywhere.


Somewhat counter-intuitively, two FL-R10 RCS Fuel Tank contain the same amount of monopropellant as a single FL-R25, yet save 0.05 units of dry mass. The smaller tanks can also be placed radially, making them the better choice for nearly all applications.


  • Capacity increased to 100, description changed.
  • Retextured, capacity decreased to 25
  • Due to part rebalancing, mass reduced from 0.9 to 0.5, empty mass from 0.15 to 0.1, fuel units from 250 to 200 (This does make the name slightly less meaningful)
  • RCS Fuel Tanks now drain symmetrically if placed using symmetry.
  • Part introduced