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#1 2023-01-19 08:35:37

tahanson43206
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Registered: 2018-04-27
Posts: 20,222

PhotonBytes Postings

PhotonBytes is a member of a team working on a design for a space plane (space-plane.org).

A topic is set up to support reporting/discussion of this specific space plane.

Space Plane design by Space-Plane.org

A post containing links and documentation is available:

http://newmars.com/forums/viewtopic.php … 46#p205246

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#2 2024-05-17 07:29:47

tahanson43206
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Registered: 2018-04-27
Posts: 20,222

Re: PhotonBytes Postings

For PhotonBytes re new proposal for an igloo at a crater on Mars....

I've not had time to read your proposal carefully, but noted a reference to 1 g in the system.

Mars offers a gravity field that is less than 1 G, so I'll be interested in finding out how your design would provide 1 G.

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#3 2024-12-21 07:14:44

tahanson43206
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Registered: 2018-04-27
Posts: 20,222

Re: PhotonBytes Postings

For PhotonBytes re recent post in Space plane topic...

Thanks for returning to the forum, and for showing your progress with a simulation that appears to show an SSTO concept.

I would be normal and expected for an impressive simulation like this to receive only positive feedback. There is no need to compare the simulation to reality.  Reality is painful and disappointing.

However, if you were interested in feedback about how your concept would work in the Real Universe, this forum has plenty of Real Universe data for your team members to study.

It would be astonished if your simulation could hold up to the requirements of the Real Universe.

There is an entire topic dedicated to SSTO, and several members of the forum have taken runs at the challenge.

For all other NewMars members .... please do NOT jump on this initiative by PhotonBytes without careful study of the proposal.

Instead, please let PhotonBytes reveal where he would like feedback. He may not want anything but positive feedback.

A beautifully written simulation that does not match reality has a definite place in the forum, because it is (or can be) a source of inspiration.

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#4 2025-01-23 16:04:23

tahanson43206
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Registered: 2018-04-27
Posts: 20,222

Re: PhotonBytes Postings

For PhotonBytes re sunken habitat on Mars....

Your initiative in early 2025 seems to have attracted some attention....

This forum has been running for over 20 years.  No one joining recently would have time to catch up on decades of discussion.

It seems to me the only practical way to bring new members up to date on settled issues is to create a post (or posts) as needed.

Your work on habitats below ground on Mars seems to retain an unnecessary attachment to Earth standard pressure at sea level.

This forum has adopted a consensus around half a bar of pressure for Mars habitats.  Members argue long into the night about decimal places of proportions. For your purposes, a rule-of-thumb of 3-5-8 should help you create a scenario that will be more acceptable to members here.

The 3 is for parts Oxygen.
The 5 is for parts Nitrogen (or Argon)
The 8 is for PSI

The reason for this convention is straight forward.  Mars residents must be able to don outside garments without pre-breathing.

When you put on your outside garment you will want to breath 3 PSI of Oxygen.

I am hoping you will revise your concept for a sunken habitat to take this lower pressure into account.

It should be interesting to see how your calculations turn out after you make this revision.

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