Marionville Models

The Ultra Micro eXtreme (UMX) Extra 300 3D takes the idea of a 3D plane you can fly almost anywhere and turns it into a reality. With a flying weight of 33 grams (barely over an ounce), battery and all, it is slow and light enough to fly extreme 3D manoeuvres in spaces no larger than a dining or conference room.

It features an ingenious laser-cut foam airframe, designed by ETOC champ Seth Arnold. The open-frame structure is covered with a micro-thin film and it uses a fraction of the foam material usually used in profile planes of this type.

This super light airframe is reinforced with carbon fibre rods that reduce airframe flexing and twisting to a minimum so you can fly the most aggressive 3D manoeuvres with absolute precision.

Optional Side Force Generators are also included for enhanced aerobatic performance. These razor-thin pieces of foam slide onto the leading edge of the wing and enhance rudder authority in knife-edge flight. They also improve tracking during precision aerobatics too.

The UMX™ Extra 300 3D BNF comes completely assembled with an extremely efficient 8.5mm coreless brushed motor and Spektrum™ AR6400L Ultra Micro DSM2 Receiver/ESC installed. Built-in long-throw servos on the AR6400L drive the elevator and rudder while two independent Spektrum AS2000L long-throw ultra micro servos drive the ailerons.

For best performance and to maximise your flying fun a DSM2 aircraft transmitter with dual rates and expo is recommended.

Ultra micro size capable of 3D in an indoor
space

Laser-cut flat foam structure and carbon
reinforcement, a lighter structure results in
high-performance 3D flight in an indoor space

Removable SFG’s quickly add extra side
areaor increased slow speed knife-edge
performance

Two independent aileron servos for better
control response and authority

4-channel control provides full 3D aerobatic
capability

Designed by Pilot Seth Arnold 2009 ETOC
Champion

E-flite LiPo charger –for quick and easy on
location charging

Complete and ready to fly- simply bind to your
transmitter

DSM2 architecture, can be used with all
DSM2 transmitters

Wingspan: 427mm (16.8 inch)
Wing Area: 4.8 sq dm (74.0 sq inch)
Length : 494mm (19.4 inch)
Weight without Battery: 28.0 g (0.98 oz)
Weight with LiPo Battery: 32.5 g (1.20 oz)
Motor: 8.5mm Coreless Brushed (installed)
Receiver: Spektrum AR6400L ultra micro receiver/ESC unit (pre-installed)
Servos: Elevator and Rudder servos on the AR6400L with 2 independent Spektrum AS2000L long-throw ultra micro aileron servos (pre-installed)
Battery: 1S 3.7Volt 150mAh 12C Li-Po (included)