Questions tagged [thrust-vectoring]
questions regarding an engine's capability to control the direction of its thrust.
33 questions
4votes
1answer
165views
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. edit (from comment) ... the torque and ...
- 171
3votes
3answers
171views
Commercial Sources of variable thrust Rocket Engines [closed]
The project is to build a model rocket to take off and land vertically. Max height perhaps 100 feet. Looking for a suitable engine which can provide variable thrust control and thrust vectoring which ...
2votes
1answer
103views
Using a reverse sling + compression sock to give an asteroid an initial boost - possible?
building my a related question, I have a hypothesis in question: Assuming that we can get a tug spacecraft near an asteroid worth mining, at appropriate but faster speeds can we use a slingshot with a ...
1vote
1answer
306views
Does thrust vectoring by a gimballed nozzle in rockets affect thrust/efficiency?
I was wondering if thrust vectoring via a maneuvering gimballed nozzle affected the thrust of a rocket. I've read a couple times that a gimballed rocket engine's thrust doesn't change while exhaust ...
3votes
1answer
221views
Simplified rocket lateral dynamics model sign convention
I had came across a simplified simplified rocket lateral dynamics model seen in this image below: . It has vanes at the exit which generate lift force and can control the rocket orientation- the lift ...
- 31
1vote
1answer
767views
Joint between actuators and structure in thrust vector control systems
I've been wondering how exactly it is that actuators are joined to the structure of a thrust vector control system. The reason I'm confused may be illustrated by the following image of a Vernier ...
user42130
1vote
1answer
182views
Space Shuttle SRB Hydraulic Power Unit Controller Schematic: "One Shot" block, what is it?
The space shuttle SRB's Hydraulic Power Unit (HPU) provided hydraulic power to the booster's TVC system. This HPU controller schematic shows "One Shot" blocks that I'm suddenly curious ...
user39728
3votes
1answer
135views
Space shuttle TVC hydraulic line diameter?
Curious what diameter the hydraulic lines of the space shuttle thrust vector control system might have been. Even a ballpark figure would be OK. Is this info by chance public?
user39728
3votes
1answer
614views
ISP losses associated with exhaust vane TVC
What is the impact of exhaust vanes, such as those in the A4 and Redstone rockets, on exhaust velocity and overall ISP? As well as this, what is the relationship between ISP losses and the width of ...
- 832
6votes
2answers
779views
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 ...
- 1,503
10votes
2answers
1kviews
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 ...
user36480
9votes
2answers
364views
How does MEV use its "ion thruster on a stick" technology?
I was reading Politico's Biden’s space policy: One giant leap for climate change and some algorithm embedded a "Learn more about MEV; Northrop Grumman" advertisement in the story. (...
- 153k
16votes
1answer
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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?
- 11.7k
6votes
1answer
330views
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 ...
- 56.4k
3votes
0answers
223views
Optimal Thruster Layout For Cubesat
I am working on a simulation of a Cubesat for rendezvous. Using the Clohessy-Wiltshire equations I calculate delta-v. Now that I know the thrust needed for operation, I would like to know how to ...
- 31
