55Horizon Hobby Hangar 9 Valiant 30cc ARF
Giant Scale appeal with a trainerlike feel
by Tom Sullivan
61Phoenix Model Genesis Air racing excitement for glow or electric aficionados by Jon Barnes
67Sig Manufacturing T-Clips 70 EG ARF
Perform your own air show at your local field
by Stan Alexander
71Stevens AeroModel 1911 Caudron Racer
Celebrate air racing’s early years
by Terry Dunn
2 Model Aviation APRIL 2015 www.ModelAviation.com
ON THE COVER: The AMA Expo is a West Coast
tradition that brings together manufacturers,
retailers, special guests, and aviation
enthusiasts for an exciting, three-day weekend.
The static competition in the main hall
allowed builders to display their handiwork
for all to appreciate. One such model, built by
Steve Gamble, was a North American SNJ built
from a Byron Originals kit. The 1/5-scale model
was rebuilt roughly a year ago and entered into
competition for the first time at the AMA Expo.
Cover photo by Susan Tossman.
VOL. 41 NO. 4
23AMA Expo 2015 Annual trade show combines warm weather and cool products by Jon Barnes
31Conservation Drones Changing the way we study populations in peril by Heather R. Taft, Ph.D.
39Ground School: Hover Training, Part 2
Crawl-walk-run by Dave Scott
47MA Construction Series Balsa builders’ parlance by Paul Kohlmann
HLG 2014 International Hand Launch Glider Festival
The origins of competitive hand-launch
soaring by Gary Fogel