RCS Control

ctl/translate and ctl/rotate are held-key controls. Their signs select full thrust or torque along the vessel body axes: +X nose, +Y right, +Z down. Magnitudes are ignored. Write zeroes to stop.

/sim (in guest)

# First enable both the fitted RCS modules and KSA's RCS authority.
echo 1       > /sim/vessels/active/ctl/rcs
echo Enabled > /sim/vessels/active/ctl/rcs_mode

echo '1 0 0' > /sim/vessels/active/ctl/translate  # forward
echo '0 0 0' > /sim/vessels/active/ctl/translate  # stop

echo manual  > /sim/vessels/active/ctl/attitude_mode
echo '0 1 0' > /sim/vessels/active/ctl/rotate     # pitch up
echo '0 0 0' > /sim/vessels/active/ctl/rotate     # stop

HTTP (host)

curl -X POST --data 'Enabled' http://127.0.0.1:4242/v1/fs/vessels/active/ctl/rcs_mode
curl -X POST --data '1 0 0' http://127.0.0.1:4242/v1/fs/vessels/active/ctl/translate
curl -X POST --data '0 0 0' http://127.0.0.1:4242/v1/fs/vessels/active/ctl/translate

Translation composes with an attitude hold. Full manual rotation does not: an automatic attitude mode strips the rotation bits, so use manual for your own DAP. Both controls latch until reset, but KSA also clears them when focus changes, the game window loses focus, camera mode changes, ImGui holds keyboard focus, or warp exceeds 30×.

Always clean up

Put 0 0 0 writes in a program’s finally block. A forgotten translate command is not a gentle drift; it is a held key with a rocket attached.

Next: Docking and parts shows the physical features these controls help you approach.

Next: Docking and partsDiscover fitted docking ports and part identities before you operate on them.