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6 answers

Horsepower?

Rocket scientists don't use horsepower to describe the performance of a rocket. In the US, we tend to use terms of pounds-thrust. The thrust is dependent on the size of the rocket too. The Gomer above, who mentioned torque, needs to cut back on the amount of crack he is smoking.

You aren't going to get or need a huge thrust for smaller rockets. So, the relation is direct and somewhat linear.

The horsepower of a man...hmmm...The depends on the SIZE of the man! *grin*

My quick excursion to the internet yields the following:

1 hp (international) = 641615.568283 calories(th)/hour.

If you have ever gotten onto one of those exercise machines that tells you how many calories you have burned, you would learn that 641,000 calories is a LOT. Doing THAT much in an hour is a LOT for ANY human to do.

You have to understand, too, that HP is associated with a rate, but trying to explain that is asking too much of someone with a brain as tiny as mine is. Not too sure what power horse is! *grin*

As someone else has explained with what appear to be valid numbers, you CAN describe a rocket's thrust in terms of horsepower, but you have to jump through a few hoops to convert it into terms that mean something to the common man - like pounds-force. That makes more sense to the common man than horsepower does when it comes to rockets.

2007-09-27 02:37:39 · answer #1 · answered by ? 6 · 1 1

The most powerful NASA rockets seem to be the booster rockets of the space shuttle. The two boosters each produce a maximum of about 3.3 million pounds of thrust. When the fuel is nearly used and the thrust has dropped to a fraction of the maximum, the speed is nearly 3500 miles per hour. If we estimate that peak power occurs when the thrust is 2 million pounds and the speed is 3000 miles per hour (4400 ft per sec), the peak power would be 2,000,000 X 4400 = 8,800,000,000 foot pounds per second or 16 million horsepower.

Various sources give the power capability of a person at anywhere between 0.1 and 1.0 horsepower depending on the level of fitness and the length of time the power level is sustained.

2007-09-27 14:29:44 · answer #2 · answered by EE68PE 6 · 1 1

MAN:
The worlds best athletes for maintaining a decent power output (HP) would be world-class bicyclists (i.e. Tour-de-France level). They can maintain somewhere between 1/4 and 1/3 HP for several hours, with peaks that approach 1/2 HP.

Personally, I can do about 1/4 HP to 1/3 HP for short periods (15 minutes) on excercise equipment, then I have to rest.

ROCKET:
Rocket engines are not generally rated for HP, with a few exceptions. The engines used on some of the 'X' type aircraft (X-15 for example) flown by NASA in the 1960s were in fact, rated for HP. One of the largest engines used at the time was rated for 1 million HP.

Some of the launch vehicle engines used today are in the same class as those engines, so they would put out comparable horsepower -- in the range of 1 million HP.

.

2007-09-27 11:14:35 · answer #3 · answered by tlbs101 7 · 3 1

generally, rockets and jets are measured in pounds of thrust, not horsepower. and your answer would vary quite a bit depending on what rocket you are asking about.

2007-09-27 09:31:29 · answer #4 · answered by swatthefly 5 · 1 2

i think horsepower of a rocket is 31999,99.
HP of a man is not yet found.........

2007-09-27 09:25:02 · answer #5 · answered by freestyler 3 · 0 2

horsepower of a rocket is beyond 300000 but i dunno how much exactly

2007-09-27 09:25:12 · answer #6 · answered by Anonymous · 0 2

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