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4 votes
0 answers
82 views

Space Shuttle Main Engine TVC actuator torque

Curious if there are references for the Shuttle Main Engine Gimballing actuator torque and the arm distance between CG of the Shuttle and the gimballing point.
Irocket's user avatar
  • 151
6 votes
2 answers
738 views

Solid state thrust vectoring

Usually thrust vectoring for the whole rocket is done by changing the orientation of individual engine(s) by hydraulic/electric actuators. So in this system the engine simply moves and with it the ...
Kozuch's user avatar
  • 1,483
10 votes
2 answers
1k views

Falcon 9 TVC: Which engines participate in roll control?

Stage 1 of Falcon 9 uses its gimballed engines during launch to control roll, pitch, and yaw. Only the eight peripheral engines can be used for roll control since the center engine couldn't possibly ...
user avatar
16 votes
1 answer
2k views

Why did the SSMEs gimbal during ignition?

During Shuttle ignition sequence: the engines always slightly gimbal closer together as they reach full combustion (I'm guessing, from the plume appearance). Why?
Anton Hengst's user avatar
  • 11.2k
6 votes
1 answer
296 views

How common is the ability to compensate for a lost engine through gimbaling?

Discussing a system of regulating thrust through lighting/extinguishing engine pairs, I was met with a reply: Really there is no need to treat engines as a pair in this context. In fact, beyond ...
SF.'s user avatar
  • 56k
5 votes
0 answers
52 views

Have any vehicles used asymmetrically variable thrust for active stabilisation? [duplicate]

Have there been any tests or attempts at developing a propulsion system that uses variable thrust for attitude control (particularly during launch)? Conventional systems often use fully gimballed ...
Jack's user avatar
  • 10k
16 votes
5 answers
4k views

Did any rockets use differential throttling instead of gimbal?

It seems the standard approach to control of rockets during launch is either vernier thrusters, or gimbals on the main engines. Sure that works, and is quite efficient, but I wonder about a simpler ...
SF.'s user avatar
  • 56k
7 votes
2 answers
4k views

SpaceX Engine Mounting / Gimbaling

Inspired by the discussion on What are the two very large "blue" cylinders attaching to the combustion chamber of each Rutherford Engine? and especially jkavalik's excellent picture of the ...
Organic Marble's user avatar
3 votes
3 answers
934 views

Is it pretty much a given that all deep-space spacecraft have gimbaled engines?

I'm starting to see a pattern. Both this answer about Cassini liquid propellant engine and this answer about ion thrusters discuss a particular necessity for gimbaling engines to keep thrust aligned ...
uhoh's user avatar
  • 151k
14 votes
2 answers
9k views

How does a rocket navigate during launch?

From what I understand, a rocket changes its direction during launch by gimbaling its engines (i.e. swiveling the engine nozzles so the thrust of the engine points in the correct direction). But what ...
Bill's user avatar
  • 819