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Arcus 6,06 m and DG-1000 6,66 m

After a few years without flying a scale glider, I wanted to have one again. The Arcus by Schempp-Hirth is with its unique wing shape one of the most beautiful gliders in the present so it had to be an Arcus. End of 2019 I was together with Erwin Schreiber from RC-Flight-Academy in Asia and on the flight back to Munich, 11.000 m above the ground, I placed my order for his Arcus. Right after my father joined the project and ordered a DG-1000 from him.

Due to various projects and my study we were unable to finish the gliders earlier. In a creative phase during study I drew the scheme for both gliders. Of course these 2 planes should also bear the spirit and signature of RT DESIGN. Based on this scheme I worked out another 2 versions of this livery for a new F3F glider and TSAR monoplane- more on that later!All the grey parts are 2K painted, the golden parts are realized with ORACOVER-easyplot.

As most of the customers buy the planes ready to fly, the building progress was laborius and took quite a long time. It took some effort to cut the slots and holes into the top wing of Arcus for the flap and aileron linkages. The following applied: cut and hope it was correct! All the linkages were made with high quality MP-Jet aluminum clevises and carbon tubes. The DITEX servos are all mounted in wood frames which are also available from Hacker Motor.

We wanted to install a self launching electric motor system, that we are not always dependent on a towing machine. As we have a lot of 10S packs from the F3A models, Hacker needed to arrange a power setup for 10S packs and the concept works excellent! Max current on Arcus is just around 55A and on DG-1000 it´s around 70A and a few several hundred meter climbs.

A few blowholes and areas where the white paint wnt off are needed to be mend. The good flying characterisitcs of the planes are bringing the troubles in balance. Almost no function had to be trimmed, the CG´s are reached without any extra weight in the nose, the drive dimensioning from Hacker is excellent and the super bright LED flash light make those gliders to a really successful project. Now we wait for days with good thermals to get them enough air-time!

We installed the Click-Connect system from Hacker Motor for the first time because of 5 servos in each wing plus the LED´s. That´s during building much more work, but in the end the most precious and safest solution for all the wiring and after crimping 2, 3 cables it´s quite an easy task. The result is a perfect reverse polarity protected central plug for all wires from wing to fuselage.

The power management system is a JETI model CentralBox 400 with two 2,4Ghz RSat and one 900mHz RSat. Each servo is directly connected to the CentralBox and can be programmed individually. That make the flight conditions and landing setup (airbrakes + butterfly) very easy in setting up. The CB-400 has still enough pins for the 3rd receiver and all the telemetry inputs. Telemetry from the CentralBox itself, each receiver, from the ESC (current, capacity, temperature…) and from the MVario2 are delivered in real time to the radio and gives a great overview about the safety onboard. As already installed and loved in other planes, the RC-switch is also here a must. The batteries are Hacker TopFuel ECO-X 3000mAh 2S.

I heared a lot about Tailored Pilots from England, but never had one of these pilots in my hands. After carefully checking their website it was sure that those pilots can meet our expectations. A few eMails with Wilson Li from Tailored Pilots later the order for 3 pilots were placed. What I can say after getting them is: quality, weight and detailing are surely one of the best available today. And they have a wide range of accessories to choose such as seatbelts, sunglasses, parachutes, headsets… Really nice are the RT DESIGN baseball caps he made in the correct size for our pilots.

A big “thank you” goes to Hacker MotorJETI modelFALCON and Tailored Pilots for joining this project!

Equipment (both almost the same):
Hacker / Ditex EL 3214S
KST X10 (outer wings and stab DG-1000)
JETI Central Box 400 + RC Switch
2x RSat2
1x Rsat 900Mhz
JETI MVario2
Hacker A50-14L FES Ex-Uni
Hacker A60-7M FES Ex-Uni
FALCON folding prop white 14×10 (Arcus), 19×13 (DG-1000)
JETI Mezon opto 95
Hacker / Unilight ACL-light system glider
10S Hacker TopFuel 5100 F3A
Hacker Click-Connect
Hacker/Emcotec Premium wire
Hacker Topfuel 2x 3000 2S ECO-X, 1x 1800 3S ECO-X
Tailored Pilots 1:3 und 1:3,5

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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.

 

RT DESIGN turbo KARAT V2

THE GAME-CHANGING TURBOPROP MODEL!

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

Equipment:
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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RT DESIGN duplex DC-24K

It all started when I was a boy with the Graupner MC-24 gold from my father. I thought it´s a cool and beautiful radio. That time I already knew I want such a transmitter someday!
Almost 15 years later I hold a JETI duplex DC-24 in my hands, with almost each part and switch 24-carat gilded. Probably the worlds one and only DC-24 with such a finishing. The name: DC-24K.
 
„When modern carbon meets classy gold to end up in world’s finest radio.“
 

But until I had it in my hands, it was a very long way. It took more than one year until the radio was completely finish. I think with the gold color it describes the quality and valence of this product best.

"Before gilding all aluminum parts, they have to be polished to a high level gloss and after that galvanic nickel-plated. 
The quality of the aluminum polish is decisive for the final result. Finally the galvanic 24 carat gold plating takes place." 
Only with the support of good friends we could realize this exclusive unique masterpiece.
Therefore a special thank you to: Lenka, Hendrik, Jörg, Jürgen, Jakub and JETI model!

20 years Hacker Motor GmbH

On saturday, 23rd of March, Mr. Hacker invited to his 20-year-jubilee of Hacker Motor in Ergolding.

A great event with famous guests, interesting guids through the company and an exhibition of their projects in RC-business and industry made this day to one of the highlights in 2019.
Even the weather was perfect with a deep blue sky and warm temperatures, maybe also a merit of the past 20 years.

What started in the loft of his families´ house is nowadays a mid-sized company with almost 40 employees and projects around the world.

For more than 10 years I am Pilot for Hacker Motor. Since my beginning I trusted in the products from Bavaria. When I look back, that was probably my best decision I made in my rc-career. I am more than proud to be part of this team since that long time.

For some time Hacker Motor is also the exclusive distributor in Europe for my RT DESIGN models- nothing better could happen to me!

At this jubilee last week we took the chance to introduce my latest design coming this summer the market:  Acrostar mk2 XL – the big brother of our 6S successor came to the market last year.

(More information about this plane coming soon.)

Again congratulations to Rainer Hacker for 20 years of Hacker Motor GmbH!
I´m looking forward to the next 20 😉

China im November 2018

After my tripto China in April, I had the chance to go there once more end of this year. In that time there was China´s biggest airshow which takes part every two years in Zhuhai. It was possible to spend one day at this event to check out some beautiful aircrafts and amazing flight displays.
From Zhuhai I went to some factories to check out their shop, the work and their airplanes. In that time we traveled over 2000 km with the car and train. Between the days in the factories I had the chance to spend one day together with Chinese F3A pilots on the airfield to fly and setup their planes.
At the end of my tour I spent three days in FALCON to see the latest stand of KARAT and gave a presentation to all workers involved in the project and informed them what happened in the past and what is next.
After nine exciting days in China I went back to Germany.

Here are a few pictures from my trip:

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turbo KARAT- worlds first turboprop powered F3A biplane!

A year ago I heard that CNC Modelparts  from Switzerland offered a turboprop for the JetCat P20/ Kolibri. Immediately I decided to build a Karat with a turboprop myself. Due to the air intake at the bottom and at the top and the straight sidewall it is perfect for a turboprop conversion. Also the exhaust gas can pass through the two wings.
In December 2017 I drove to Switzerland with my JetCat P20 to pick up the Turboprop from CNC Modelparts. At the same time I shared my idea with Carlos Marquez from CM Jets in Spain, he immediately became enthusiastic about the new concept and promised me a custom made fuel tank for my model. Two weeks later I already received the new  Kevlartank  for my turbo KARAT.

FALCON received my order to build an adapter for the fuselage, which I can easily attach to the zero side thrust nose, due to the F3A Contra-Rotating-System, to receive the necessary side thrust.
At the Rotor Live Helicopter fair in Iffezheim, I discovered for the first time the innoflyer light system, which was new in the product line of Hacker Motor. I became 
impressed by the innovative, simple and efficient handling. During dinner with Andreas Golla from Hacker and Christoph Raible from innoflyer we started speaking about my special project, the turbo KARAT.
Andreas Golla suggested to equip the plane with an innoflyer lighting system. At first I had the impression he was joking, but when I realized he was serious about it I actually thought it was a great idea.
On a piece of paper I received from the waiter we determined the position of the light on the model, and ordered the parts immediately. 
After the Turboprop, all DITEX Servos and the lights were installed, the plane had to be varnished.  I was planning on an 
easy but also a bit scale finish. In addition to the KARAT I worked on a Scorpion from Aviation Design with a Patrouille Suisse color scheme, which I like a lot and it is visible in the air.
As the Turboprop and the lighting are both from Switzerland, I decided to adjust the color scheme of the Ptrouille Suisse so it matches the KARAT.
Before I installed the turbo, I painted the whole body area of the turboprop inside twice with BVM Heatshield to avoid prickly  heat in the carbon/fiberglass of the body. After everything was rewired and finished, the first flight took place in the beginning of May 2018.  Everything worked out perfectly right away. In the meantime, I had a performance problem with the turboprop, but this was due to small kevlar pieces in the kerosene filter.
The plane now has about 30 flights and everything still works fine.
At the end not the most spectacular plane I’ve ever built, but definitely one that I have the most fun with!
And just the worlds first F3A t
urboprop biplane – turbo KARAT.
Also I would like to thank everyone who was involved in this amazing project:
CM-Jets, innoflyer, CNC Modelparts, Hacker Motor, JETI model, PowerBox Systems, FALCON
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Many thanks to Philipp Rösner for another great video of turboKARAT!

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https://www.youtube.com/watch?v=HYLl9w2v3xE

JETI model Meeting 2018

On the 18th of August JETI hosted the annual JETI model Meeting.
A few top pilots supported by JETI came to CZ for making the airshow interesting and diverting with many highlights.
Especially all those scratch build airplanes from the Czech pilots also taking part in the show are stunning and make it worth to join this event.

Martin Pilny made some really great snapshots of my Pilatus PC-21- thanks for them!

Thank you JETI model for the invitation and the awesome weekend!

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https://www.youtube.com/watch?v=d-UP0v15wjc