Luke that is how most new commercial orchards are laid out these days. Google high density orchard and you will find a whole slew of relevant information. It is also an excellent method for the home grower since no ladders are needed for harvesting.

Scott

Isn't it called the spindle system?

Thank You, I appreciate your help. Luke

Slender spindle is one system like that. I suppose you could do 6ft row spacing. But even in a home orchard 8ft would probably be better.

One term is the tall-spindle method. This was posted not too long ago for me.

Here is a link that might be useful: Dr. Terence Robinson at Dressel Farms