Going with the proffered logic of the same tech that builds 150k can build 600k but the quality / maintenance might be reduced would you also eliminate Weapons Platforms? Would you reduce the number of engines available?
Edit: Actually it as I review Earth history it makes sense that if you can build a 150kT Escort you could build a 600kT or larger ship. I was thinking of Thor Heyerdahl's The Kon Tiki and The Rah.
A brief overview of the ships.
http://folk.uio.no/janrt/hey.html
Conclusion: Even with primitive tech a group of people could build much larger “vessels”.
I’m all for it.
[ February 12, 2003, 22:08: Message edited by: F Te antKe ]