Contents...

FEATURES

REVIEW - Raptor E550S

Thunder Tiger reintroduces the E550 in a 6S sports package that includes everything you need by James Wang

TECHNICAL - Small Rotors

A 3D printed quadrotor, the return of an old favourite and a new beginner’s heli by Nigel Cartwright

REVIEW - GAUI NX4

A 500-size helicopter powered by a .30 – .39 Nitro engine makes sense providing longer fl ight times and using the GAUI .37 means it has plenty of power by Jon Tanner

REVIEW - Graupner mc-20 HoTT

The latest Pro Class 12 function radio with two screens for parameter and telemetry data by Fred Annecke

TECHNICAL - DJI Innovations

We visit the DJI facilities to learn more about this leader in unmanned aerial systems (UAS) and look at its products by Jon Tanner

REGULARS

Collectively Speaking

Helicopter News by Jon Tanner

Sales Pitch

New Items by Jon Tanner

From the Ground Up

The inevitable has happened and it’s time to repair the damage by Richard Morris

What’s On

Dates for your diary

Scale by Scale

International Helicopter Scale Masters 2012 by Jim Davey

USA Heli Scene

Converting Audacity Models’ Pantera P6 from nitro to electric and flybarless by James Wang

Readers Write

Your Questions

3D Kaos

How did we get here and where are we going? by Mike Eddington

Classified Adverts

Good Buys!

Shopper’s Directory

Shops in your area

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Model Helicopter World April 2013