Here is MRN Vol 10 Number 3 from August 1970 thanks to Don Altschwager.

Don sent this a couple years ago but the link was tucked away in a post in the Wanted forum. I'm reposting it here so it's easier to find.

http://www.oldrocketplans.com/mrn/m.../mrn_v10_n3.pdf

__________________
Scott D. Hansen
Ye Olde Rocket Shoppe - Your One Stop BAR Shoppe!
Ye Olde Rocket Plans - OOP Rocket Plans From 38 Companies!
Ye Olde Rocket Forum
WOOSH NAR Section #558