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Results tagged with launch-trajectories
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user 23354
For questions discussing trajectories taken by rockets during launch.
0
votes
Powered Explicit Guidance: Should rocket be pitching down at orbital insertion?
Think about just the vertical motion. The vehicle has a lot of upward velocity. What reduces that to the small or zero amount needed for orbit?
You could wait for gravity to do it, but at 10m/s^2 that …
- 12.9k
3
votes
Accepted
How do small, spin stabilized launchers follow a rhumb line?
In theory, a rocket could "follow a rhumb line" starting with any kind of directional information. But there seem to be two use cases:
The very-early Pegasus rockets used a directional gyro derived …
- 12.9k
6
votes
Accepted
What exactly is rhumb-line control in the context of a launch trajectory?
“Sailing a rhumb line” means holding a constant compass bearing. For short distances, this stays close to a great circle path.But at longer distances and/or higher inclinations, the rhumb-line path “t …
- 12.9k
2
votes
Accepted
Does landing a Falcon 9 first stage affect the allowable launch azimuths?
The FAA, by rule, requires an exclusion for any air space over which a rocket is flying with its Flight Termination System armed. I guess they consider that the FTS might actually be used, in which ca …
- 12.9k
5
votes
Is there a pitch maneuver in launch vehicle trajectory to raise the perigee altitude in orde...
You can think about it (approximately) by dividing the rocket trajectory into "up" and "downrange" parts. The "downrange" part is the largest one: To get to orbit, the rocket has to generate a lot of …
- 12.9k