What are the main steps in the lead-up to a rocket launch?
2015年2月2日 · Generally speaking, a rocket launch has these steps: Integration: stacking the rocket stages and the payload together. Rollout: moving the rocket to the launch pad. Fueling. Pre-launch checks. Starting up the rocket: switching on its internal power sources, starting the rocket's control systems etc.
What is the purpose of the jets of water often under rocket …
The water is released seconds before ignition of the orbiter's three main engines and twin Solid Rocket Boosters (SRB), then flows through parallel 7-foot-diameter pipes to the Pad. The system includes a 290-foot-high water tank filled with 300,000 gallons of water, and it empties in 41 seconds during a launch.
Why are rocket launches so sensitive to weather?
$\begingroup$ Consider that a rocket is many, many tons of fuel and oxidizer just wanting to explode. Consider that virtually all rocket bodies are conductive metal. And worst of all, consider that as much as 2 km of the rocket's exhaust is electrically conductive plasma.
How far south can one see a rocket launch from Cape Canaveral
I'll be in Miami this Thursday 30th of March and there is a SpaceX Falcon 9 rocket launch from LC-39A, Kennedy Space Center, Florida (if it's not delayed). I won't be able to drive north to be on time at Cape Canaveral to see it.
What is the success/failure ratio of space bound rockets?
2015年3月27日 · $\begingroup$ 94% success is over a long history of rocket development. More recently, launching agencies have refined their designs and processes to achieve really high reliabilities. Atlas II through Atlas V have had only one partial failure in 120 launches since 1991, for example. $\endgroup$ –
launch - Why are rocket launches so loud? - Space Exploration …
2016年8月26日 · So, fundamentally, why are rocket launches so loud? What components of a rocket motor firing contribute to the tremendous noise? I understand that a tremendous amount of energy is being expended in a very short timeframe and concentrated area (rocket nozzle). This article indicates that a typical nozzle velocity is 2802 m/s, which is around ...
What is the vapour/smoke that comes from a rocket before launch?
2016年11月29日 · While a rocket is waiting on the platform during the final countdown, it often seems to have clouds of steam or something similar escaping from it. Is this normal, and what are these clouds?
launch - Can a rocket be launched while it rains? - Space …
2015年4月27日 · The range safety rules for US launches are very strict with regard to weather conditions and the observability of the launching rocket. The rocket has to be visible throughout the launch, up to the point where it is high enough and moving fast enough that an onboard catastrophe would mean wreckage falling into the Atlantic.
launch - Are we changing Earth's rotation? - Space Exploration …
2019年2月25日 · If a rocket launches a payload to equatorial LEO at 400 km altitude, the final payload velocity is about 7700 m/s. That angular momentum came from somewhere, and that place is Earth's atmosphere.
What is the purpose of having a countdown during a rocket launch?
Actually, you could launch a rocket to a piece of music, but somehow engineers prefer to count down boring numbers instead. Imagine how dancers train for e.g. a huge ballet performance. Launch and ground controllers train equally along all those numbers.