MAY/JUNE 2019 VOLUME 61, NUMBER 3
Feature Articles
Tim Bookwalter flew this J-powered Saturn V at
the Student Launch Initiative on April 6, 2019.
The launch of Tim's Saturn is shown at right.
Photos by Vince Huegele.
On The Cover
6
24
1
4 Editor's Space
by Tom Beach
6 Saturn 1B Project
by Gary Briggs
16 OpenSCAD
by William Blair
20 Kitbashing the Estes Mini "A"
Heli for 1/4A Helicopter Duration
by Dan Wolf
24 Clustering a 1:48 Sport
Scale Atlas V 521
by Mike Caplinger
34 The Screw-Together Nose Cone
by Dan Bolger
38 Filling Tube Spirals
by Andrew Bissonette
41 Mini SCUD
by Martin Bowitz
42 Increasing Rocket
Aerodynamic Performance
by Thomas Salverson
44 How Many Records Can You
Set in One Day?
by Steve Kristal
51 Dr. Robert Goddard
by Caleb Diener
52 Altimeter Ground Testing
by John Le Sage
54 Manufacts
by Tim Quigg
