Community > Forum > The Spaceflight Cafe > Minimum craft to Mars and back !

Minimum craft to Mars and back !

Posted by: topspeed - Tue Apr 11, 2017 7:09 pm
The Space Fellowship :: View topic - Minimum craft to Mars and back !
The Space Fellowship
https://xprizenews.org/Forum/

Minimum craft to Mars and back !
https://xprizenews.org/Forum/viewtopic.php?f=16&t=13173
Page 2 of 2

Author:  topspeed [ Tue May 02, 2017 2:30 pm ]
Post subject:  Re: Minimum craft to Mars and back !

Now the T-Bird is liquid fuel only.

Author:  topspeed [ Wed May 03, 2017 2:56 am ]
Post subject:  Re: Minimum craft to Mars and back !

Folks !

Feel free to aski if interested and want to be part of this.

Here are some ideas to it.

Solar output is 3 x more than on Solar Impulse and batterypower is used to accompany it...unlike in SI II.

Author:  topspeed [ Thu May 04, 2017 5:25 am ]
Post subject:  Re: Minimum craft to Mars and back !

More explained here.

Author:  topspeed [ Thu May 04, 2017 5:25 am ]
Post subject:  Re: Minimum craft to Mars and back !

...and here.

Author:  topspeed [ Thu May 04, 2017 10:59 am ]
Post subject:  Re: Minimum craft to Mars and back !

I think I have to think the mission profile all over again.

I don't need to have this big launchbooster / mothership with rockets if the parasite has delta-c of 7500 m/s. It is enough to get it at 50 km at M10 or similar speed.

Author:  topspeed [ Thu May 04, 2017 11:01 am ]
Post subject:  Re: Minimum craft to Mars and back !

This is now bigger than HK-1.

Author:  topspeed [ Sun May 07, 2017 5:05 am ]
Post subject:  Re: Minimum craft to Mars and back !

Slight modification...to be able to gain more momentum for the parasite.

Author:  RGClark [ Mon May 08, 2017 12:16 am ]
Post subject:  Re: Minimum craft to Mars and back !

With orbital propellant depots at both departure and arrival points a single reusable rocket stage could do all steps from LEO departure to Mars orbital insertion, to Mars landing, to liftoff up to Mars orbit, to return back to Earth:

Propellant depots for interplanetary flight.
http://exoscientist.blogspot.com/2015/0 ... etary.html

Bob Clark

Author:  topspeed [ Mon May 08, 2017 2:21 am ]
Post subject:  Re: Minimum craft to Mars and back !

RGClark wrote:
With orbital propellant depots at both departure and arrival points a single reusable rocket stage could do all steps from LEO departure to Mars orbital insertion, to Mars landing, to liftoff up to Mars orbit, to return back to Earth:

Propellant depots for interplanetary flight.
http://exoscientist.blogspot.com/2015/0 ... etary.html

Bob Clark


Cool link thanks Bob Clark.

What is you opinion on DS4G system seems to be at least 10 x more efficient than the Ion-thruster on Dawn probe ?

Author:  topspeed [ Mon May 08, 2017 2:36 am ]
Post subject:  Re: Minimum craft to Mars and back !

Some tweaking on my carrier craft that brings the orbiter for depature for LEO.

If reloaded on LEO this ( T-bird ) may just make it to MARS but apparently not capable to make it back...is that so Bob ? I counted it misses 3.6 km/s worth delta-v. This does not count in the landing on Mars.

Also noteworthy is that if you are able to fly in 36 km altitude on Earth you most certaily can fly on Mars atmosphere.

Author:  topspeed [ Mon May 08, 2017 2:42 am ]
Post subject:  Re: Minimum craft to Mars and back !

This was missing here.

T-bird here ( lower craft )has capability to depart Earth gravity and use the DS4G.

Author:  topspeed [ Mon May 08, 2017 3:04 am ]
Post subject:  Re: Minimum craft to Mars and back !

We can all count it.

Solar power on MARS is 43% of the Earth equivalent.

Author:  topspeed [ Mon May 08, 2017 5:59 pm ]
Post subject:  Re: Minimum craft to Mars and back !

Here is the re-entry / orbiter vehicle.

Author:  topspeed [ Mon May 15, 2017 3:59 am ]
Post subject:  Re: Minimum craft to Mars and back !

An other 5% increase in size. This is able to carry an orbiter which if refuelled and attached with solar arrays can reach Mars in weeks. The rocket itself has been increased by 17% in size.

Page 2 of 2 All times are UTC
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/
© 2017 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use