On Wednesday, January 2, 2019 at 9:49:18 PM UTC-7, John Foster wrote:
On Wednesday, January 2, 2019 at 4:18:44 PM UTC-7, Frank Whiteley wrote:
On Wednesday, January 2, 2019 at 2:39:13 AM UTC-7, Frank Whiteley wrote:
On Wednesday, January 2, 2019 at 12:59:47 AM UTC-7, John Foster wrote:
On Tuesday, January 1, 2019 at 8:13:46 AM UTC-7, Martin Gregorie wrote:
On Mon, 31 Dec 2018 19:21:45 -0800, WB wrote:

There is nothing new under the sun when it comes to ground launching,
auto tow, winch, whatever. It's pretty much all been tried. Derek Piggot
wrote a book that is a great resource for learning about ground launch
in it's many forms. Unfortunately, it appears to be out of print.