OK, so I've seen a few different numbers posted here.  The design I 
settled on is a series of 19 switchbacks, each one dropping about 52 
feet over 750 feet, which comes out to about a 7% grade.

The real drawback to this, is that it means the walkway is extended from 
3000 feet (a bit more than 1/2 mile, a considerable length on its own) 
to about 14000 feet (close to three miles).  I'm thinking I might just 
have to adjust my target height so I won't need switchbacks, and put an 
elevator in at the end.

...Chambers

PS Hopefully, I'll get some images up in the b.i group soon.

Post a reply to this message