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Results tagged with rockets
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user 158
Questions regarding the boosters or thrusters used to propel man-made objects. For rockets firing opposite the primaries, see [retrorockets]. See wiki for other related tags.
21
votes
Why is it preferable for SpaceX to land their booster vertically rather than fly it down wit...
A vertical landing system, versus a winged one, does several things:
increases available landing sites (see note 1)
encourages more agile boosters (which enables better course corrections)
requires …
- 11.6k
11
votes
Accepted
Highest stage counts in actual launchers?
If, counting a stage as a unit of a craft that fires, providing thrust, and all thrust cuts off before a different unit in the craft starts to thrust...
The Saturn V - Apollo - LEM stack is 6 stages. …
- 11.6k
3
votes
Are payload and impulse the sole criteria to decide the engine?
No, but ISP and thrust are two of the most important.
Also considered are environmental concerns, fuel handling requirements, drive mass, fuel mass, and price of drives, fuel, and supporting structur …
- 11.6k
17
votes
Can a rocket motor be shut off after ignition?
Likewise, some military tactical rockets are non-stoppable liquid fuel rockets.
Solid Fueled
Most solid fuel rockets are not stoppable. … With liquid fuel and hybrid fuel rockets, the first step of abort is to cease fuel flow; if that fails, then the payload eject and detonate protocols are invoked. …
- 11.6k
5
votes
What was the first attempt in history for space exploration?
He is said to have attempted to fly to the heavens by mixture of kites and rockets. Rockets are a viable method - and kites are a good way to get a weight airborne. …
- 11.6k
13
votes
Is it possible to reach space using home-made rocket?
While it's theoretically possible to home-build something capable of attaining the needed 9.3+ km/s, it's not something that the average person can pull off. You'd need to be exceptionally talented an …
- 11.6k
7
votes
Why do rockets separate from both its strap-on booster cores simultaneously instead of one a...
All rockets need to keep the center of thrust (Ct) beneath the Center of Mass (Cm). …
- 11.6k
7
votes
What is the intent of attaching legs to the rocket?
M\$0.2 of M\$56 is just a hair under 0.36% If operation and refurbishment costs are in the 5% range, that means launching 10 missions on one rocket body is 15.3% of the cost of 10 rockets... 1/6th the … s=opportunity&mode=form&id=d776bfdf8afabea49f5a2c2847c88519&tab=core&_cview=1
http://www.space.com/13139-space-fully-reusable-rockets-works.html
http://www.nasaspaceflight.com/2013/10/musk-plans-reusability-falcon …
- 11.6k
18
votes
Accepted
What will be NASA's successor to the Saturn V rocket?
The largest US rockets currently in practical development are the Falcon Heavy (aka Falcon 9 Heavy) and the NASA SLS Block 1. …
- 11.6k