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To: jpsb

Impulse is a really important thing to think about when you are talking about rocket engines, too. An easy way to think of impulse is thrust over time.

In that case, 1.5 million pounds for a 150 second burn for an F1 is still eclipsed by 0.5 million pounds for over 500 seconds.

The Russians used to employ many, many smaller engines on their rockets to get the same power as our few large engines. If you think about it, they had to get the same power as we did to get into orbit.

Impulse, impulse, impulse....


34 posted on 08/14/2015 11:57:07 AM PDT by HeadOn (Computers are nice, but when there is no power, mechanical devices will be king again.)
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To: HeadOn

Thanks for the lesson, I’ve seen impulse in stats on rocket engines but never brother to look it up. I thought thrust, thrust, thrust. Rocket science is not my thing. thx again.


43 posted on 08/15/2015 2:06:04 AM PDT by jpsb (Believe nothing until it has been officially denied)
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