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Welcome 2021!!!

Unfortunately due to my studies and COVID-19 I was unable to fulfill my 2020 wishes but it was still a good year nonetheless.
The TSAR monoplane project was unfortunately not completed in 2020,it has now been over a year and is still not finalized but I am getting closer to the end.
With that being said I would like to introduce to you the all new, TSAR monoplane from RT DESIGN.

Stay tuned for more pictures of the new highly visible colour scheme.

I would like to thank everyone for the support in 2020 and wish you all a happy, healthy and prosperous 2021.


Events in August and September

As there are almost no events this year, I could manage to fly with friends in Germany and Hungary.
From 28.08. – 30.08. I attended a small airshow for RC pilots only and not for the public, in Györ.
An excellent event with perfect organization and hospitality – thank you SRCM Györ!!!!

Beginning of September I went back to Mosbach for study. Less than one hour drive from Mosbach is the airfield of Michelstadt, which is in my mind for many years. In 2001 was an airshow at that field, where I saw one of my most favorite airplanes for the first time, the GeeBee R2 by Delmar Benjamin.
On Monday and Tuesday the local RC-pilots are allowed to fly at this place and I could not miss this invitation and spent some great time with the people there.
A big thank you also to all friends in Michelstadt!!!

Here are some impressions and videos from those trips.
Thanks to all for filming!



Beginning until mid of this year I was very busy due to my study. So I could not invest the time for aeromodelling as I wished to. But in the past weeks I worked up and finally after more than 1 year the new turboKARAT V2 was finished.
When my father flew turbo KARAT V1 he said “I need one”. So we shared the work and built 2 new turbo KARAT V2.

What has been changed from version 1?
– stronger and lighter turbine, now Kolibri T35
– special FIALA 5-blade wood propeller
– special exhaust pipes for the small turboprop
– all new colorscheme “bronce-NAVY”
– new Hacker / Ditex-EL Servos
– reworked LED-light-system from innoflyer
– reduced go-fly weight

JETI duplex REX12
JETI RC-Power Switch 10A
Hacker / Ditex Servos
Special FIALA 5-Blade Propeller
CM-Jets special KARAT fueltank
innoflyer light system
Kolibri T35 + turboprop

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Acrostar mk2 XL VIDEO!

On sunday weekend we captured a few clips of electric Acrostar mk2 XL and my mate M!C made a nice video of this plane:

Acrostar mk2 XL – classic aerobatic plane – perfect towing machine

Check it out:

uncut video of Acrostar mk2 XL in the GP version with Fiala FM70 4-stroke motor:

Skymaster F4-Phantom 1:6

After carefully reworking the whole plane and some “weight cure” we finally made a few very successful phlights with the more than 3m long F4 Phantom from my phater. Everything works flawless!
Both turbines running reliable, all the telemetry data from the three RX and other information are monitored during flight on the radio and the electric retract system incl. the the gear doors moving exactly like on the original F4.

It is so much fun, if everything works so perfect and you have to see this impressive model in the air!

2x JetCat P130RX
Hacker DITEX Servos TD2612S
JETI CB-200 with 2x 2,4Ghz RX and 900Mhz Backup RX
electric retract system and brakes
7,5l CM Jets Tank + 2x UATs

A few pictures from this impressive model (more will follow):

KARAT biplane from now on painted available

Finally we are able and proud to offer KARAT biplane painted from the FALCON-factory. We completely reworked the scheme and the masking that we now ready for a small “series production”. The layout is my colorscheme and the colors can be choosen without extra cost. Also own schemes are possible!

The new color combination purple / green is my personal ” RT 2020 version”

Information and pricing on request!

The first two airplanes are painted in China and going to the customers soon.
The green version is coming to Germany and before I hand it over to the customer, I will upload some detail pictures.

Acrostar mk2 XL UPDATE!!!

The delivery of series product of Acrostar XL has started and here are some additional tipps / information.

The wing tube which is included in the kit, was changed due to my wish. More specifically the wall thickness has been enlarged to get a stronger tube. The new tube is also used by the manufacturer for another airplane. So It could be possible that you need to cut the tube around 10mm.

I recommend to modify the tail wheel as shown on the picture. Just one washer and no lock-nut between the bracket  and the wheel.

If you use long servo arms, it is useful to install the ball link below the servo arm. Otherwise the ball-linkage will touch the servoarm if you have big deflections.


I recommend to tape all control surfaces with flexible, transparent surgical tape.
The result is a much better effect of those functions.