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Maplegate Media

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Fly RC Planes And Electric RC Helicopters Indoors And Outdoors Too. Or Try RC Cars
And RC Toys That Are
Fast And Fun.

May 2007 Issue 42

features

24		How to Hold a Club Pylon Race
		Gentleman, start your engines! —by Chris Luvara

32		Torch Model Engines 60cc Gas Engine
		Brazilian newcomer in the medium size gasser race —by Andrew Coholic

		PROJECT
36		Electrify Carl Goldberg Edge 540
		Electrify a 50cc aerobat —by Scott Stoops

44		Aerobatic Trimming
		—by Scott Stoops

flight reports


		PARK AND SLOW FLYERS

52		E-flite Ultimate FX
		A full-figured 3D foamie with profile performance —by Jason Hanna

56		Atec Models Mini Tumbleweed
		Punch through the skies with this sport aerobat —by Terry Dunn

62		Fliton Andrew Jesky Extra 330S
		An outstanding aerobatic mount with pedigree —by Kevin Siemonsen

68		Electrifly Fokker D.VII and S.E.5A
		Fly your own Dawn Patrol with these legendary WWI classics —by Bob Van Tassel

76		Hobby Lobby Super Zoom
		Convertible aerobatic fun with wheels or floats —by Scott Stoops

86		SIG Manufacturing E-Force ARF
		An all-wood 3D machine —by John Pavlick

90		Maxford USA Curtiss Jenny ARF
		—by Steve Kessinger

		HELICOPTER REVIEW
100		HRB Sky Robo Mini Shuttle
		Gold standard in indoor coaxial helicopters —by Tom Atwood

		RC CLUB FIELD AIRCRAFT

108		BVM Props Extreme
		Composites Edge 540 Giant scale 3D at its best —by Tyler and David Armstrong

116		Cermark Alley Cat
		A nimble speedster that is nearly race ready —by Cliff Becker

122		The World Models Groovy 3D 50
		Great-looking pattern-style 3D ship —by Dave Keough

136		Aeroworks 50cc Extra 260 ARF-QB
		The perfect first giant scale model that won’t disappoint the expert among us —by Scott Stoops

columns & departments

12		Preflight Letter from the editor �by Tom Atwood

14		Debrief
		Your comments and questions

16		Just Landed
		The latest products and RC news

50		Snapshot Readers’ photos

82		Wing Tips Techniques and ideas from our readers �Illustrated by David Baker

148		Electroactive More on A123 Li-Ion cells �by Tom Hunt

174		Gear Up Notable accessories & RC gear

186		Departure Radio control, high-def air-to-air video �by Tom Atwood

On the cover: Scott Stoops started with the Goldberg Edge 540 then added Astro Flight's remarkable Astro 120 electric motor instead of the typical large glow or gas engine. The result is a powerful performer. See page 36 for complete details of Scott's conversion. Inset: David C. Baron's "Monkey-Ball" is an extreme 3D project very much in flux as he creates a model that can even roll across the ground! See page 12 for our initial coverage of this remarkable flyer.

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