Thruster

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Thrusters are the primary means that all ships and even stations use to maneuver around. Thrusters only provide direct linear thrust in the direction away from the nozzle regardless of their physical position on the ship, they will not apply any torque or cause any rotation of the ship to any axis (see Gyroscope). As long as the thruster is directly connected to the Grid (not a sub-grid or attached via Landing Gear), they will provide thrust from the center of mass so there is little restriction on placement. There are two major types of thrusters: Standard Thrusters, Ion based thrusters that use electricity as a fuel source to provide thrust and Hydrogen Thrusters, which use Hydrogen as a fuel which is comparatively much more powerful but also much more limited.

Before Update 01.105, Thrusters used to have two specific modes: a normal thrust and the inertial dampening thrust. Normal Thrust that is used when manually piloting with the keys and mouse or using the thrust override slider and an dampening thrust that is automatic providing 10x more force for 50% more electricity consumption. All Thrusters from large to small when inertial dampening is on and the ship is moving, will kick in and attempt to slow the ship to a stop. Due to this, ships were much more able to come to a complete stop than they were able to accelerate before that update.

Before Update 01.107, all Small Ship thrusters would receive a 5x boost to thrust when under the automatic control of inertial dampeners (not the player or 'thrust override') attempting to stop the ship, for no increase in both power usage or fuel usage.

Currently all kinds of thrusters (whether small or large ship) do not have any special super-dampening capabilities beyond their rated maximum thrust and power consumption.

Thrusters

Thruster Block size Dimensions
[size in m3]
Maximum Thrust
[KN]
Mass
[kg]
Max Power
Consumption
[KW]
Mass-to-Thrust
[KN/Kg]
Size-to-Thrust
[KN/m3]
Fuel-To-Thrust
[KN/KW] or [KN/H]
Fuel Consumption
[H/s] or [kg of U/s ]
Large Thruster Icon.png Large Thruster Large Ship Icon.png Large 3x4x2 [375 m3] 3600 43200 33600 0.0833 9.6 0.1071 0.0093 kg
Small Ship Icon.png Small 3x4x2 [3 m3] 144 721 2400 0.1997 48 0.060 0.00067 kg
Small Thruster Icon.png Small Thruster Large Ship Icon.png Large 1x2x1 [31.250 m3] 288 4384 3360 0.0657 9.216 0.0857 0.00093 kg
Small Ship Icon.png Small 1x2x1 [0.250m3] 12 93 201 0.1290 48 0.0597 0.000056 kg
Large Hydrogen Thruster Icon.png Large Hydrogen Thruster Large Ship Icon.png Large 3x3x3 [421.875 m3] 6000 6940 10000* 0.8646 14.222 0.9336 6,426.7 H
Small Ship Icon.png Small 3x3x3 [3.375 m3] 400 1222 800* 0.3273 118.5185 0.778 514.1 H
Small Hydrogen Thruster Icon.png Small Hydrogen Thruster Large Ship Icon.png Large 1x1x1 [15.625m3] 900 1420 1700* 0.6338 57.6 0.8238 1,092.5 H
Small Ship Icon.png Small 1x1x1 [0.125m3] 82 334 170* 0.2455 656 0.7505 109.2 H
Large Atmospheric Thruster Icon.png Large Atmospheric Thruster Large Ship Icon.png Large 3x3x5 [703.125 m3] 5400 33834 16360 0.1596 7.68 0.3301 0.00454 kg
Small Ship Icon.png Small 3x3x5 [5.625 m3] 408 4244 2400 0.0961 72.53 0.1700 0.00067 kg
Small Atmospheric Thruster Icon.png Small Atmospheric Thruster Large Ship Icon.png Large 1x1x3 [46.875m3] 420 4072 2360 0.1031 8.96 0.1780 0.000656 kg
Small Ship Icon.png Small 1x1x3 [0.375m3] 80 539 701 0.1484 213.33 0.1141 0.000195 kg

Ion Thruster (Electrical)

  • All standard Electric-based Ion thrusters will consume a minimum of 0.002 KW (2 Watts), even when not in use. They use electricity to generate thrust, their power consumption scales linearly with what percentage (as seen on the thrust override slider) the thruster is operating at. It's effectiveness is inversely dependent on the density of the atmosphere, having an actual effectiveness anywhere from 30% at minimum to full effectiveness outside planetary atmospheres - becoming increasingly less effective the thicker the atmosphere.

Hydrogen Thruster

  • All Hydrogen-based thrusters require a Conveyor connection to a source of Hydrogen such as an Oxygen Generator or a Hydrogen Tank. (*) Hydrogen based Thrusters despite having a 'power consumption' rating will not actually consume electrical power they ONLY consume Hydrogen from a hydrogen source accessed via conveyors. Their only electrical requirements will be for the hydrogen sources that store or make hydrogen and the Conveyor system. Each Hydrogen Thruster consumes a tiny amount of Hydrogen even if not active (as seen with its 'pilot light'), much like the minimum that electric-based thrusters have. Their effectiveness is entirely unaffected by the presence of planetary atmospheres, being equally effective everywhere.

Atmospheric Thruster

  • All atmospheric thrusters thrust output is entirely dependent on the density of the atmosphere around the thruster and only work in planetary atmospheres, being most powerful near the surface and becoming linearly less powerful further out. Typically the thruster will never achieve it's rated maximum during usual play even directly on the surface (which is typically around 90% max efficiency). They much like standard thrusters use electricity to function and consume a minimum amount of 0.002 KW (2 Watts) even when not in use.

Thruster Damage

If 'Thruster Damage' is enabled for a map or server, thrusters will deal damage while active to any blocks directly behind within a certain distance with exception to small thrusters damaging large ship blocks, making it possible to build 'landing pads'. If this occurs, blocks adjacent to the block/s in "the line of fire" will also be damaged in a cross-pattern. If the block is too close to the thruster, this can even damage the thruster, causing it to explode. The "danger zone" varies in size based on the thrust being applied by the thruster. Large thrusters deal damage further than small thrusters. Likewise, thrusters on large ships deal damage further than those on small ships.

This table (and the images below it) indicate the damage distances for small and large thrusters and ships. They apply only to blocks directly behind the thruster, and do not account for damage to adjacent blocks.

All thrusters from standard thrusters, hydrogen and Atmospheric deal thruster damage to varying degrees if enabled, generally the more powerful the thruster the larger the danger zone becomes.

Damage Distance
Blocks Metres
Small Ship Small Thruster 3 sb 1.5m
Large Thruster 5 sb 2.5m
Large Ship Small Thruster 2 lb 5.0m
Large Thruster 5 lb 12.5m
  • sb = small-ship blocks (0.5m each)
  • lb = large-ship blocks (2.5m each)