The Ultra Micro eXtreme (UMX) Extra 300 3D makes the dream of a 3D plane you can fly almost anywhere a reality. With a flying weight of barely over an ounce (just 33 grams), battery and all, it is slow and light enough to fly extreme 3D maneuvers in spaces no larger than a dining or conference room. Its ingenious laser-cut foam airframe, designed by ETOC champ Seth Arnold, makes it all possible.
The structure uses a fraction of the foam material usually used in profile planes of this type and is covered with micro-thin film. The airframe is reinforced with carbon fiber rods that keep flexing and twisting to a minimum so you can fly the most aggressive 3D maneuvers with absolute precision. Optional Side Force Generators are also included. These razor-thin pieces of foam slide onto the leading edge of the wing and enhance rudder authority in knife-edge flight. They improve tracking during precision aerobatics too.
The UMX Extra 300 3D BNF comes completely assembled with a punchy 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. A 1S 3.7V 150mAh Li-Po battery and DC Li-Po charger are also included. For best performance, a DSM2 aircraft transmitter with dual rates and expo is recommended.
Features
An ultra micro that's ideal for indoor 3D flight
Completely built and flight ready--just bind to any DSM2 aircraft transmitter with dual rates and expo
Includes a Li-Po flight battery and DC Li-Po charger
Small and light enough for experienced pilots to fly almost anywhere indoors
| Specs |
| Scale |
Ultra Micro |
| Wingspan |
16.8 in. (427mm) |
| Overall Length |
19.4 in. (494mm) |
| Wing Area |
74 sq. in. (4.8 sq. dm) |
| Flying Weight |
1.2 oz (32.5g) |
| Motor Size |
8.5mm Coreless Brushed |
| Trim Scheme Colors |
Red, Grey, Clear, Black |
| Prop Size |
130x70mm |
| Recommended Battery |
3.7V 1-cell 150mAh LiPo (included) |
| Approximate Flying Duration |
4-8 minutes |
| Recommended Environment |
Indoors |
Needed to Complete
A 4+ Channel DSM2 compatible Transmitter. A programmable transmitter capable of dual rates and exponential is highly recommended.