März 2019

RT ULTRAmate EPP now also in the legendary black colorscheme – RT DESIGN edition

November 2017

Hacker Motor edition

…revolutionary indoor biplane with first ever full-moving stab in mass production…


The RT ULTRAmate EPP is already the 5th Indoor/3D-foamy designed by myself. After the huge successes in the past years with the different Sirius and Eraser versions was it now time for something completely new- 


Two wings, huge control surfaces, an almost 90° full moving stab and the light and very durable EPP-Carbon airframe makes the ULTRAmate really ULTRA- in all respects.

This is the ultimate indoor biplane that did not exist until now but so many pilots been waiting for…

 We are sure, you will love ULTRAmate!


wingspan: 750 mm

length: 900 mm

Weight (without battery): ca. 160 g


Motor: Hacker A10-7L

ESC: Hacker X-7 Pro

Propeller: FALCON 8,5 x 4,3

Servos: 3x 6g