Category: Partner

“When classy 24k gold meets modern carbon fiber to end up in worlds most luxury rc-radio ever build – DS-24K”

It was almost exactly a year ago when I had the idea to build another unique JETI transmitter after 2019: at the JetPower, on September 22, 2025, JETImodel handed it over to me personally!

With the help of my former materials science professor Uli, whom I met during my studies, we found the right companies in Germany that could first polish the raw parts to a high gloss and then gold-plate them!

The most important step before gold-plating the CNC-milled aluminum parts is polishing, which I did at METALLDESIGN in Gaildorf. Each of the 42 aluminum parts of a DS-24 transmitter was personally hand-polished by the METALLDESIGN-CEO himself, resulting in a mirror-like surface – simply wow!

Even before gold plating, the aluminum parts had to be electroplated with nickel to ensure that the gold would bond with the aluminum parts and simultaneously form a diffusion barrier. These two tasks were handled by a company that Uli knew from his work as a professor at Aalen University. They are absolute experts in gold plating.

During the gold plating process, I set about designing the transmitter’s carbon fiber front and back panels. It was particularly important to me to allow the front and back of the transmitter to mature without any time pressure. My goal was to keep the transmitter as puristic as possible while still including all the necessary lettering, including the logos. The back was to feature a very special quote derived from Latin:

Originally, a carbon fiber plate with integrated gold fibers was planned, but after an initial test, it became clear that the transmitter would have been too cluttered and confusing with this plate and the required lettering. So, we ultimately threw this idea out.

After many different versions of the front and back, the layout was finally found, and I’m absolutely thrilled.
Sorry, JETImodel, that there were countless small detail changes until I was 100% satisfied 😊

I realize this remote control is crazy and doesn’t make for any better flying. Nevertheless, I wanted a special JETI transmitter, in a color this product deserves, especially given my excellent experience with JETI over the past 10 years. The contrast between classic gold and modern carbon fiber is simply elegant and stunning.

There’s interest in such a special transmitter. Therefore, we are currently checking the possibility of producing a small series in 2026.

The photo gallery shows the journey from the raw parts to the finished DS-24K

The latest model by TA Horizons from India is called the TSAR Junior and is a joint venture project between TA and me. It’s the “junior version” of my last F3A model, the TSAR, which unfortunately never made it into production.

Even more wonderful that this mini version is now available to everyone. While TA Horizons was developing the model, I was there and provided full support. I played a key role in the design, created both color schemes, and especially worked on the linkage accessories.

The result is a beautifully designed indoor aircraft with the genes of (my) F3A model.

The first kits will soon be available in Europe, but if you don’t want to wait, you can already order directly from TA-Horizons via webshop:

TA-HORIZONS Webshop TSAR Junior

Glider Fair 2024 saturday evening in the Cocktailbar: PS-Models Dominik Lintner, one of the best pilots I know, came to chat about the event, my Bücker, and the gliders by PS-Models. During the day, I’d already been impressed by the planes and the booth with its South Tyrolean specialties, and after a good chat and a few drinks, I ordered the 3m Kobuz in baby blue.

I’ve finally received the glider, assembled it, and flown it a few times. I’m off to the mountains soon for some slope flying, where I hope to do some more testing. First impressions are already very good. The model impresses with its excellent airflow and aerobatic performance, and even in thermals with the wing cambered, the Kobuz performs surprisingly well.

Below are a few words and pictures of the assembly.

The airframe:

The Kobuz is very high quality and has a superb paint job. All accessories are included in the kit, and each construction section is packed in a separate bag. All control horns are factory-glued, and the RC board is made of carbon. It only needs to be glued in place.

As it is usual with models painted in the mold, you’ll need to be careful when clean it with a spirit rag, as the paint rubs off easily and the surface becomes dull relatively quickly. The canopy is already glued at the factory and the frame is painted. For my taste, they could have put a little more effort into it. No expense was spared on the glue, and some dust remained inside the canopy. However, since the interior of the canopy hull is painted a solid black, it’s not so noticeable.

The linkage:

The Kobuz received the proved and very high-quality linkage accessories from heizkoffer.de in combination with all CHA HV-servos. Since the glued-in control horns from PS-Models are slightly wider than standard carbon fiber horns, Thorsten Rauber from heizkoffer.de responded and promptly added perfectly fitting stainless-steel clevises for the PS models to his product range. Thorsten also calculated my linkage geometries for ailerons and flaps based on the glued-in control horns. For those 4 servos he also increased the servo travel using software to achieve the ideal resolution. The original servo covers no longer fit the double servo arm on the servo. A wider hood in the servo cover is required for the double-arm linkage. Heizkoffer.de has also done its homework here and offers its own servo covers, which can be cut to size and thus adapted to many other gliders as well. Painted to match the model’s finish, this is the most elegant and stable solution for this model.

The power unit:

Since I had ordered the spinner and prop from PS-Models painted in model colors, I had to choose a propulsion system based on the propeller size. Uwe Neesen from Hacker Motor took care of this again and tracked down the Hacker C54-2D L for me. I’m familiar with the C54 from my F3A planes and know the forces on the front bulkhead and the motor’s gearbox. Therefore, I also installed the C54’s anodized clamp support on the Kobuz. Simple, fast, and classy!

The ESC is a JETI Mezon 80 EVO with BEC and full telemetry. The integrated BEC outputs 8V to the receiver and servos.

Light system and RC:

Hacker’s ACL-Glider lights are now a must on my glider models because they are perfectly visible even at very high altitudes. They are simply glued to the bottom of the wing, and the cables are fed into the wing through a small hole. For a clean transition between the flashlights and the wing, I always print rings, which are also attached to the underside of the wing with contact adhesive. The lights are powered by a 3S battery, but I simply made an adapter that allows me to tap the voltage same as a 3S battery from my 6S flight battery via the balancer connector.

I use a standard JETI duplex Rex-10 receiver, to which a small JETI capacitor is attached for the return current.

Equipment:

4x CHASERVO HV-150H

2x CHASERVO HV-150

Hacker C54-2D L Glider Competition

JETI Mezon 80 EVO

GM-Prop 16×10

Optotronix ACL-Glider

6S 5000 Hacker ECO-X

JETI duplex REX-10

JETI duplex MVario2

The Acrostar 60E and XL is a very famous and well-flying aerobatic model. The produced batches of both version are sold out and no more available. Due to persistent requests for both models I checked together with Hacker Motor the possibility for a new batch of both models. But the price for the plane plus shipping and the high MOQ make it not possible to bring back these models.

So If you are a proud owner of a RT DESIGN Acrostar, take care of it 😉

Robin Trumpp, February 2023