tag:blogger.com,1999:blog-6633940777526327846.post2562315327800960724..comments2024-03-21T08:00:48.696-07:00Comments on No Shortage of Dreams: Humans on Mars in 1995! (1980-1981)Unknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-6633940777526327846.post-23321395667868709352022-04-08T09:58:37.992-07:002022-04-08T09:58:37.992-07:00I think the basic concept is fine but that this pl...I think the basic concept is fine but that this plan suffers from a common conceptual planning malady, which is overly optimistic technological capabilities and mass estimates. Everything would tend to be less capable and weigh more. That's not a special fault of this plan — it's really common. What it means here especially is that the cost estimates are massively low-balled. Again, that&David S. F. Portreehttps://www.blogger.com/profile/15818906581595028816noreply@blogger.comtag:blogger.com,1999:blog-6633940777526327846.post-19019327240474319082022-04-06T09:13:42.730-07:002022-04-06T09:13:42.730-07:00This is quite an interesting Mars plan - lightweig...This is quite an interesting Mars plan - lightweight, yet quite capable. And it would fit quite nicely into my alternate history timeline Overview Effect. Were there any major problems with it in hindsight? For example, the crew modules look quite small.Anonymoushttps://www.blogger.com/profile/00350812173667351396noreply@blogger.comtag:blogger.com,1999:blog-6633940777526327846.post-80288849669519874952016-05-14T12:59:28.432-07:002016-05-14T12:59:28.432-07:00Paragraph 5 describes Parkinson at the time he pro...Paragraph 5 describes Parkinson at the time he proposed "Mars in 1995!" I didn't get into his earlier lunar base papers nor his later HOTOL/Skylon work. Perhaps one day, when I write about 1970s moonbases or Single-Stage-To-Orbit. Thanks for adding more interesting details, though.<br /><br />dsfp David S. F. Portreehttps://www.blogger.com/profile/15818906581595028816noreply@blogger.comtag:blogger.com,1999:blog-6633940777526327846.post-7026457725701216552015-10-04T11:51:53.096-07:002015-10-04T11:51:53.096-07:00That Parkinson is Robert Parkinson. The year after...That Parkinson is Robert Parkinson. The year after that report, in 1982, he and Alan Bond started the British HOTOL air liquefaction SSTO. HOTOL was scrapped in 1989 and replaced by Skylon. 25 years later, SKYLON may very well led to a workable SSTO - the Sabre engine has been "endorsed" by ESA. Anonymousnoreply@blogger.com