New Mars Forums

Over at www.nasaspaceflight.com is an admission by member "Jim" that Delta IV is too small to really be efficent.

Delta IV has always been an awkward sized rocket. It is very large for a standard ELV, and yet it really is not big enough at the same time.

It is unwieldy compared to Atlas, yet cannot hold much LH2 compared to the ET or the wider Ares V rocket. remember--Ares V was made wider due to the way RS-68 guzzles cryogenics--so the comparatively thin Delta IV has even more problems.

Delta IV is a bad bird.

You certainly save on pad time.

More on BDBs here:
http://www.spacefellowship.com/Forum/vi … 2868#22868
http://forum.nasaspaceflight.com/forums … 11&start=1
http://uplink.space.com/showflat.php?Ca … art=1&vc=1

Or you can go and waste time with the dreamer-RLV thing--one more time--with feeling.

http://www.astrox.com/ http://spacecraft.rsevproject.com/

And that is so much better than a plain simple rocket right?

WRONG!!

I've often wondered about an air-breathing solid like Gnom crossed with Sprint...

http://www.astronautix.com/lvs/sprint.htm
http://www.astronautix.com/lvs/gnom.htm

With Sprint being the intake cone.

I want Ares V for a bigger version of this--preferably with some kind of nuclear reactor or gas turbine engine
http://www.astronautix.com/craft/spalaser.htm

I would have a pressure-fed Energiya Buran type system myself.

sure...

AMEN!

I think this is using EELV sized segments? Not smart.

Another materials revolution or two might change that...who can say.

Give me a Sea Dragon, and place some large modules on the lunar surface. If some automated craft can slowly grow (assemble) mass-drivers, then you need no spacecraft at all once your infrastructure is up and independant.

ey--better that than a stupid Domed Stadium.

Makes Energiya Buran seem downright cheap.

Please--its not a hoax. We bounce lasers off retro-reflectors.

I say you a re not really a person--just a computer program designed to simulate/spout conspiracy theories. Any attempt to convince me you are real is just more text of the program.

Now prove you exist.

Pictures? Ah! That's a fake--a photo of the computer programmers neighbor.

Walk up to me and say ''Im' the guy." And I'll just say you were a hacker who read the blurb above and posed as you.

This is how conspiracy buffs sound.

Not very nice when its turned right back at you is it?