Jump to content

Smallest rocket capable to send human being into orbit???


Pawelk198604
 Share

Recommended Posts

Well, technicaly, I think that might be the Pegasus. But, the size of the thing would mean a pretty cramped capsule, with a weight considerably less than the mercury capsules. Not sure it would be possible to put a heatshield on it, so, do you ean put a human in space, and bring him/her safely down again? Or just into orbit?

edit: yeah, the Pegasus takes some 443 kg to LEO. So, subtract he weight of the astronaut, (say roughly 100 kg, including a skinsuit.) now, with a suit and a helmet, forego a pressurised cabin, a simple liquid nitrogen RCS system, no parachute or heatshield for returning, no dockingring, it should be possible to make a minimalistic vehicle able to launch one human being into LEO for being picked up by another vehicle in orbit. That is the smallest possibilitiy I can think of.

Edited by Thaniel
Link to comment
Share on other sites

It depends what you want to do with a man once he's up there and for how long you want him to stay alive.

I would think that Mercury-Atlas is just about as small as you could make a spacecraft if you want any chances of survival after a few hours in space. The Mercury capsule was only 1.3 tons (including the astronaut and consumables).

Link to comment
Share on other sites

It depends what you want to do with a man once he's up there and for how long you want him to stay alive.

I would think that Mercury-Atlas is just about as small as you could make a spacecraft if you want any chances of survival after a few hours in space. The Mercury capsule was only 1.3 tons (including the astronaut and consumables).

If you increase the number of stages (say, three), I think you could drop the weight on the pad a bit. Using H2/LOX as fuel might give you a tiny further advantage (the Delta IV is very light for its payload, for example). But yeah, around there is the minimum.

Rune. Lowest cost would be a completely different problem, as is also proven by the Delta IV.

Link to comment
Share on other sites

This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...