Archives




View Full Version : How Far is Wayne Planning to Go Next Marathon?


Chuck
10-25-2006, 07:23 PM
For those wondering how far Wayne wants to go on the next marathon....

.....click here (http://www.cleanmpg.com/photos/data/500/How_Far.jpg)

tbaleno
10-25-2006, 07:30 PM
HAH! Great job.

diamondlarry
10-25-2006, 07:40 PM
I was wondering about hypermiling the USS Enterprise. How many light years can you go on a tank of deuterium?:D

Chuck
10-25-2006, 07:47 PM
I was wondering about hypermiling the USS Enterprise. How many light years can you go on a tank of deuterium?:D

For that mission you know Picard would be better than Kirk. :D





Scotty: ...but Captain, she'll blow, if this keeps up...
Kirk: MORE!!!

Ever more deafening hum....

xcel
10-26-2006, 04:22 AM
Hi Chuck:

___I know all of us would eventually get there but at an average speed of 18 mph, it might take a while ;)

___Good Luck

___Wayne

tbaleno
10-26-2006, 09:31 AM
You should be able to raise your high end pulse and have a very long high speed glide.

BTW. Who wants to do me a favor and figure out the MPG of a rocket to the moon and back?

Chuck
10-26-2006, 09:39 AM
You should be able to raise your high end pulse and have a very long high speed glide.

BTW. Who wants to do me a favor and figure out the MPG of a rocket to the moon and back?

When it gets about 500 miles above Earth (i.e. reaches escape velocity), the FE is about infinity. :)

tbaleno
10-26-2006, 09:51 AM
right. so, how much fuel us used?

brick
10-26-2006, 12:07 PM
I ran around the internet looking for numbers, and came up with 750,000mi travelled by the Apollo 11 astronauts and a total propellant capacity of 7.24 million pounds. If you figure that all the propellant was liquid hydrogen and oxygen (not true, but makes for a simpler analysis) then you end up with ~850,000lb of liquid hydrogen, which takes up about 1.5 million gallons. That comes out to about 0.5mpg, not including the oxidizer. If you want, you can figure it in terms of GGE by accounting for low energy density of liquid hydrogen vs. gasoline. That gets you about 2MPGGE. So space travel on a Saturn V is kind of like driving a H2 at 50mph through ankle-deep water.

Chuck
10-26-2006, 12:38 PM
Maybe it would get better on a trip to Mars....

tbaleno
10-26-2006, 01:49 PM
I ran around the internet looking for numbers, and came up with 750,000mi travelled by the Apollo 11 astronauts and a total propellant capacity of 7.24 million pounds. If you figure that all the propellant was liquid hydrogen and oxygen (not true, but makes for a simpler analysis) then you end up with ~850,000lb of liquid hydrogen, which takes up about 1.5 million gallons. That comes out to about 0.5mpg, not including the oxidizer. If you want, you can figure it in terms of GGE by accounting for low energy density of liquid hydrogen vs. gasoline. That gets you about 2MPGGE. So space travel on a Saturn V is kind of like driving a H2 at 50mph through ankle-deep water.

Maybe someone should post this question to slashdot and of course make a link back to this site ;)



Copyright 2006 Clean MPG, LLC. All Rights Reserved.