Re: He worked for Pioneer
When you say he worked for Pioneer, I assume you mean Pioneer Astronautics, an outfit run by Zubrin. Pioneer Rocketplane, currently run by Mitch Clapp, was originally partnered with Pioneer Astronautics, but parted company a while back. The two companies now have nothing to do with each other as far as I know, although there is still a link to Clapp's outfit on Zubrin's web page. Sounds like Lowther worked for Zubrin, and an interesting time was had by all.