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Some solid rocket motors provide thrust vector control by injecting fluid into ports around the nozzle. In this system, neither the nozzle nor engine is gimbaled. Vehicles that utilize(d) this system include later Titans and the PSLV. My answer to this question includes a description of the Titan system with schematics: What was the purpose of the small red ...


10

As Jörg W Mittag says, we don't know. But since they can gimbal all of the engines, I'd be surprised if they didn't. Gimbaling all of the engines a little, as opposed to gimbaling just a few of them a lot, has (at least) the following advantages: It generally maximizes the clearance between adjacent engine bells, since you're turning all the engines by the ...


9

We don't know. What we do know is that the Falcon 9 has engine-out capability which means you cannot pick a fixed setup beforehand, you have to be able to adapt to the loss of any one of the 9 engines. Other than that, everything is possible. We also know that SpaceX is constantly improving and changing, so what is true today is not necessarily true tomorrow ...


3

I don't know of any source that would give a comprehensive survey to this kind of question, so answers are probably going to come from people who remember specific examples. If they remember which ones to look up and verify. I've seen some but can't remember which ones, so I haven't said anything. But I just read about the Japanese Mu-3 family of rockets, ...


2

Partial answer: According to a parts supplier, New Shepard uses a hydraulic system. JASC designed and manufactured the Flight Control System Actuators and the engine Thrust Vector Control Actuators used on New Shepard. Both of these actuators are servo-hydraulic units, with the former used to steer the vehicle and provide aerodynamic stability, and the ...


2

It is unlikely that gimbal checks would be done on a running engine (at least in flight) due to the resultant effects on the vehicle. Shuttle: In addition to the famous prelaunch gimbal test of the main engines prior to launch as described here, gimbal checks were also done on the Orbital Maneuvering Engines (OMEs) and the Solid Rocket Boosters (SRBs) thrust ...


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