RSG GyroFly

Webbplats

RSG GyroFly A ground‑up autogyro project blending engineering, documentation and hands‑on building. Making personal aviation real — not someday, but now.

Watch an aircraft take shape piece by piece.

 # PHILOSOPHICAL FRIDAY # # # Of Sparrows, Cows, Cats… and the Art of Recognising True Friends**“Not everyone who cheers...
30/10/2026

# PHILOSOPHICAL FRIDAY
# # # Of Sparrows, Cows, Cats… and the Art of Recognising True Friends

**“Not everyone who cheers you on helps you move forward. And not everyone who puts obstacles in your path actually stops you.”**

Years ago, I heard a little fable. Not a particularly elegant one, certainly not something you'd tell over a formal dinner, but surprisingly wise.

It was about a little sparrow that was freezing in the bitter winter cold. Eventually, it fell to the ground, almost frozen to death.

A cow happened to walk past and dropped a steaming pile of manure right on top of it.

Hardly what you'd call a friendly gesture. Especially from the sparrow's point of view.

But the warmth of the cowpat saved its life. The little bird warmed up, recovered its strength and began chirping happily.

A cat heard the chirping.

It approached, gently pulled the sparrow out of the manure, cleaned it off…

And ate it.

The end. No happy ending. The sparrow didn't even get the chance to say thank you. 😉

But the story left behind three lessons, two of which have stayed with me ever since:

**Not everyone who s**ts on you is your enemy.**

**Not everyone who pulls you out of the s**t is your friend.**

When I first heard that story, it simply made me laugh.

Today, after quite a few years of life experience, I see something much deeper in it.

Life has a strange habit of placing both cows and cats in our path. And strangely enough, we don't always recognise which is which.

When we started the RSG Diamond project, we had a dream, a handful of ideas and an enormous desire to create something of our own.

Over time came the first calculations, models, revisions, materials and real structural components.

And when we began sharing our work publicly, people came along too.

Many welcomed us with genuine kindness. They encouraged us, supported us and shared their experience. And I am sincerely grateful for that.

But there were others.

People who questioned our ideas, pointed out mistakes and challenged our assumptions.

Sometimes they did so respectfully and constructively.

And sometimes with all the subtlety of that cow from the story. 😉

I won't pretend I always welcomed it with a smile.

When you've devoted hundreds of hours to something, invested your money, time, ambitions and a piece of your life into a project, it isn't pleasant to hear that you've got something wrong.

Especially when the message arrives with the delicacy of a brick through a window.

My first reaction?

Well… let's just say that some expressions are probably best left out of official aviation documentation. 🤣

But eventually the emotions settle.

You read the comment again. Open the design. Check the calculations.

And suddenly you discover that this rather unpleasant person may actually have noticed something important.

They don't have to be right about everything.

They don't even have to have good intentions.

But if their remark helps you discover a mistake, simplify a solution or improve structural safety, have they really done you harm?

**Sometimes someone throws a log in your path, and you discover it's exactly the piece of timber you needed to build a bridge.**

At RSG Diamond, we've already revisited earlier decisions many times. We've changed solutions that initially seemed perfectly reasonable. We've rechecked things we thought were finished.

Sometimes the criticism proved justified.

Other times, after a thorough analysis, we stood by our original decision.

Because being open to criticism doesn't mean agreeing with whoever shouts the loudest.

It means being willing to admit that you might be wrong.

And that, surprisingly enough, is one of the hardest skills to master.

Especially when your own pride is involved.

**A compliment can make your day. A good question can change your design.**

And please don't misunderstand me.

Kindness matters enormously. Sometimes a single encouraging word gives you more strength than another cup of coffee.

But kindness alone cannot build a safe gyroplane.

You can have thousands of likes, hundreds of flattering comments and an entire crowd assuring you that everything is wonderful.

Unfortunately, gravity, aerodynamics and material strength don't use Facebook.

They have no idea how many followers we have.

And, rather rudely, they have no intention of making exceptions for us. 😉

That's why I'd rather hear an uncomfortable question today than discover the answer to it several hundred metres above the ground tomorrow.

I'm not building RSG Diamond to prove to the world that I've been right from the very beginning.

I'm building it because one day I want to sit at the controls of a machine that once existed only in my imagination.

I want to feel it lift off the ground.

I want to see the world from its cockpit.

And above all, I want to have confidence, supported by calculations, testing and proper verification, that we've done everything reasonably possible to make that flight safe.

**My ego can survive a few painful comments. An aircraft structure may not forgive a single serious mistake.**

And that's precisely why we have no intention of hiding our mistakes or pretending every correction was part of some brilliant master plan.

Sometimes we simply overlooked something.

Sometimes someone else spotted a better solution.

And sometimes, after several hours of analysis, we conclude that whoever designed the previous version should be permanently banned from going anywhere near CAD software.

Unfortunately, that person is usually me. 🤣

But let's return to our little sparrow for a moment.

What fascinates me most about that story is how easily appearances can deceive us.

The cow did something that seemed like the worst thing imaginable for the little bird. Yet it saved its life.

The cat did something that looked like an act of kindness. Yet the story ended tragically.

Of course, in real life, not every critic is a cow unknowingly saving us. And not every kind person is a cat with hidden intentions.

**The lesson isn't that we should stop trusting people. It's that we should learn to look beyond first impressions.**

Sometimes a friend has to tell you something you don't want to hear.

Sometimes a complete stranger can help you more than they ever realise.

And sometimes the greatest obstacle in our path isn't another person at all.

It's our own unwillingness to admit that we might not be right.

There's an old saying that wisdom comes with age.

Unfortunately, for some people, the only thing that arrives with age is the lid of their coffin. 🤣

Because getting older doesn't automatically make us wiser.

**Experience only becomes wisdom when we're willing to learn from it.**

And perhaps that's the greatest lesson our little sparrow never had the chance to discover.

So today, I'd like to thank everyone who has joined us on this journey.

Those who encourage us and give us confidence.

Those who share their knowledge and experience.

And those who ask difficult, uncomfortable and sometimes downright irritating questions.

We won't always agree.

It won't always be pleasant.

But if those conversations help make RSG Diamond a better and safer machine, they're worth having.

Because the goal isn't to win every argument.

**The goal is to take to the skies safely one day — and return to the ground just as safely.**

And the sparrow?

Well… if it had been given a second chance, perhaps it wouldn't have judged the cow by what landed on its head, or the cat by how kindly it extended its paw.

And maybe that's something we should all learn from it.

**Not everyone who criticises you wants you to fail. Not everyone who praises you helps you succeed.**

And sometimes, life's greatest lessons arrive disguised as a steaming pile of cow manure. 😉

---

**Now, a question for you:**

Have you ever learnt something genuinely valuable from someone you initially wanted to tell to go straight to hell?

*RSG Diamond Project*

RSG DIAMOND — Sunday Engineering Comedy 😁Or how mathematics ruined a perfectly good shopping experience.Imagine this.You...
25/10/2026

RSG DIAMOND — Sunday Engineering Comedy 😁

Or how mathematics ruined a perfectly good shopping experience.

Imagine this.

You've spent weeks designing a gyroplane. Selecting materials, checking dimensions, refining the design, preparing the order, and finally paying for the aluminium.

Everything is perfect.

The supplier cuts the profiles. The shipment is on its way. Everyone's happy. Finally, something you can actually touch instead of just another collection of lines on a computer screen!

And then someone casually says:

"Maybe we should run a few more calculations..."

Famous last words before a budget disaster. 🤣

The story of our tailbooms started innocently enough.

Originally, we planned to use 50 × 50 × 5 mm square aluminium profiles.

Then we decided that round Ø50 × 5 mm tubes would be a better solution.

Design updated. Decision made. Materials ordered.

Case closed.

Or so we thought. 😂

Because that's when mathematics entered the room.

Loads. Bending moments. Deflection. Stiffness. Different load cases. More calculations. Another spreadsheet. Another cup of coffee.

And finally, that wonderful moment in every aircraft designer's life:

"You know what... actually, we could do this better."

OF COURSE WE COULD!

BUT WHY THE F**K NOW, WHEN THE ALUMINIUM IS ALREADY ON ITS WAY?! 🤣

And so it started all over again.

This time, the calculations pointed us towards Ø80 × 3.5 mm aluminium tubes made from 6082-T6 alloy.

Larger diameter. Thinner walls. Different stiffness and strength characteristics.

And the Ø50 × 5 mm tubes we'd already ordered?

Well... They're beautiful. Really beautiful.

They just don't know they've lost their jobs yet. 😂

Congratulations! We've successfully turned mathematics into another shopping trip! 🏆

But there's something much more important behind all this.

This is exactly why we're doing all these boring, time-consuming, and occasionally infuriating calculations NOW, rather than after building the aircraft.

CAD tells us whether the parts fit together.

Engineering calculations help us determine whether the structure can withstand the expected loads.

And sometimes those calculations tell us something we really didn't want to hear.

And that's a good thing.

Because we'd much rather argue with a spreadsheet today than argue with gravity tomorrow.

RSG Diamond — a project where we try to make even our mistakes before construction begins. 😎 ...and we don't sweep them under the rug.

Now, if you'll excuse us, we need to find an aluminium tube supplier.

For the third time.

And hopefully the last. 🤣

PHILOSOPHICAL FRIDAYLife Is Not a Timelapse.We all love watching construction timelapses on YouTube.Fifteen, maybe twent...
23/10/2026

PHILOSOPHICAL FRIDAY

Life Is Not a Timelapse.

We all love watching construction timelapses on YouTube.

Fifteen, maybe twenty minutes, and it's all done. From the first bolt to the finished machine. Months or even years of work compressed into a short, satisfying video.

If you expected the same thing here, I'm afraid I'll have to disappoint you.

You're not watching a finished story.

You're watching a story that's still being written.

RSG Diamond is an ongoing process. It takes time, patience, calculations, experiments, mistakes, and corrections. Sometimes we have to take two steps backward just to move one step forward.

On YouTube, you'll see months or years of work condensed into fifteen minutes.

What you probably won't see are all the failed attempts. The wrong decisions. The sleepless nights. The frustration, the swearing, the disappointments, and sometimes even the tears and blood.

You won't see the moments when something you've spent weeks working on has to be thrown away and started all over again.

Here, you can see those moments too.

Because we're not going to pretend that building your own gyroplane is an endless series of successes.

This is real life. Real work. Real problems and real solutions.

And real life doesn't have a fast-forward button.

One day, when RSG Diamond finally lifts off the ground for the first time, perhaps we'll put together a fifteen-minute timelapse of the entire journey.

Then you'll see how quickly a dream can be built.

But if you stay with us now, you'll see something far more important.

You'll discover what it really takes to turn a dream into reality.

How much patience. How much determination. How much faith that it's worth carrying on, even when things don't go according to plan.

Because dreams don't come true in fifteen minutes.

Dreams are built, one day at a time.

RSG Diamond 🛩️

🔧 TECHNICAL SNIFFER | RSG DIAMONDWhy Aluminium? And Why No Welding?Today, we have taken another important step towards b...
20/10/2026

🔧 TECHNICAL SNIFFER | RSG DIAMOND

Why Aluminium? And Why No Welding?

Today, we have taken another important step towards building the first RSG Diamond prototype.

Our shipment of aluminium profiles has arrived — the material that will form the main load-bearing structure of our gyroplane.

From the very beginning, we established one fundamental principle: the structure should not only be strong and lightweight, but also practical to manufacture using relatively simple workshop equipment.

That is why we chose 6082-T6 aluminium alloy and a bolted frame construction instead of welding.

Why this approach?

Welding precipitation-hardened aluminium alloys can significantly reduce material strength in the heat-affected zone.

Bolted connections avoid this particular problem, make individual components easier to replace, and allow assembly without specialised welding equipment.

However, this does not mean that a bolted structure is automatically better or safer.

Every hole, every gusset plate, and every bolt must be properly engineered. Particular attention must be paid to stress concentrations, material fatigue, and load transfer between structural members.

Engineering also means being willing to make changes.

A good example is our tailbooms.

During development, we revised their planned dimensions from Ø50 × 5 mm to Ø80 × 3.5 mm aluminium tubes.

The larger diameter provides substantially greater bending stiffness at a comparable weight per metre.

But that is only part of the equation. The revised tubes and their attachment points still require structural verification.

And that is precisely why these two tubes are not included in today's delivery.

What comes next?

Our next steps include finalising the structural joints, calculating the relevant loads, and preparing the components for manufacturing.

Only after appropriate verification will we proceed with assembly.

RSG Diamond is being developed around a simple belief:

Building your own aircraft should not be a privilege reserved exclusively for large companies and enormous budgets.

But making aviation more accessible must never mean compromising safety.

A simple structure does not mean simple engineering.

🚁 RSG Diamond — Built with purpose. Engineered with reason.

 # PHILOSOPHICAL FRIDAY # # WHAT IF THE WORST THING THAT COULD HAPPEN TO A DREAMER IS... HAVING THEIR DREAM COME TRUE?Im...
16/10/2026

# PHILOSOPHICAL FRIDAY

# # WHAT IF THE WORST THING THAT COULD HAPPEN TO A DREAMER IS... HAVING THEIR DREAM COME TRUE?

Imagine someone who decides one day to build their own aircraft. A plane. Or a gyroplane.

Not buy one ready-made.

Not order one from a factory.

**Build it themselves. From the very first sketch to the very last bolt.**

At first, there's nothing but an idea. A few drawings, some calculations, and a vision of a machine that doesn't yet exist.

Then come the months. Perhaps years.

Sleepless nights. Hundreds of decisions. Thousands of questions. Problems that nobody else is going to solve for them.

Sometimes things don't fit. Sometimes weeks of work have to be thrown away and started all over again. Sometimes there's not enough money, not enough time, or simply not enough energy.

And there are always people who ask:

*"Why go through all this trouble? Wouldn't it be easier to just buy one?"*

But there's something they don't understand.

**The goal isn't simply to own a machine that can fly. The journey of creating it is part of the dream itself.**

Every problem solved is a small victory.

Every completed component brings us closer to a moment that, for years, has existed only in our imagination.

Until finally, that day arrives.

The aircraft is standing on the runway.

The engine is running. The rotor is spinning up. The open sky lies ahead.

And then comes that extraordinary moment when the wheels leave the ground.

**We're flying.**

The dream that once seemed so distant has become reality.

It's hard to imagine a greater feeling of achievement.

But...

A week passes. A month. A year.

The first flight becomes a memory. The tenth no longer feels quite so extraordinary. By the hundredth, flying has become something almost natural.

The machine we once admired only on a computer screen is now sitting in a hangar. We can walk up to it, open the cockpit, take our seat, and fly whenever conditions allow.

What once seemed impossible has become part of everyday life.

And one day, perhaps during a peaceful flight over familiar landscapes, a strange thought appears:

**"Well... what now?"**

Have we finally reached the end of our journey?

Is the moment we fulfill a dream also the moment we lose something incredibly precious — the dream itself?

Or perhaps we've misunderstood what dreams are really about.

Maybe a dream was never just a destination.

Maybe it was the force that made us get out of bed every morning, learn new things, experiment, and try again when everything seemed to go wrong.

Maybe it was through that dream that we discovered skills, patience, and determination we never knew we possessed.

If that's true, then the first flight isn't the end of the story.

**It's simply the end of one chapter.**

Because the moment we fulfill one dream, there's nothing stopping another from being born.

Perhaps we'll want to fly farther.

Perhaps we'll build something even better.

Perhaps we'll help others — people who look up at the sky today and think, "That's not for someone like me" — discover that they, too, can find their way up there.

Or perhaps the next dream will be something completely different.

It doesn't matter.

What matters is that there is one.

At RSG Diamond, we're not simply building a gyroplane.

**We're building proof that an idea which once existed only in someone's imagination can one day lift off the ground.**

And perhaps that's why we shouldn't be afraid of our dreams coming true.

We should only be afraid of the day we stop creating new ones.

---

**Because perhaps the greatest tragedy isn't dying with an unfulfilled dream... but living without having anything left to dream about.**

And now, a question for all the dreamers, builders, and pilots out there:

**When you first took to the skies — or finally accomplished something that had seemed impossible for years — did you feel that you'd reached your destination?**

**Or was that the very moment you realized another journey was just beginning?**

*RSG Diamond Project*

From the Builder's Log... 🛠️🚁There are days when you look at your project and think, "Damn, this thing is actually start...
11/10/2026

From the Builder's Log... 🛠️🚁

There are days when you look at your project and think, "Damn, this thing is actually starting to look like a gyroplane!"

And then Monday comes, you open Blender, and discover that one of your bulkheads has a split personality.

Actually, make that a triple personality. 🤣

Welcome to the world of building the RSG Diamond!

Over the past few days, we've been preparing the cabin geometry for CNC machining and converting our 3D models into STEP files.

Sounds boring?

Try convincing several dozen complex 3D solids that they need to be watertight, geometrically valid, and actually manufacturable — rather than just looking pretty on a computer screen.

The result? 41 STEP files successfully exported and imported back for verification!

Forty-one little victories over mathematics, software, and our own patience.

And then came the bulkhead.

One object in Blender. Three separate solid bodies. And a converter that apparently decided that since they all live under the same name, they must be one happy family.

Unfortunately, geometry doesn't recognize domestic partnerships between solids separated by 60 millimeters. 😂

Instead of hitting the "Ah, it'll probably be fine" button, we stopped the export and started investigating the problem.

Because there's one thing we definitely don't want to find out during the maiden flight:

Whether our design mistakes can fly as well as the Diamond.

Meanwhile, our 6082-T6 aluminium is on the final leg of its journey to our workshop.

And you know what?

After all those hours staring at a computer screen, the prospect of drilling holes, bolting the frame together, and finally holding real aircraft parts in our hands is starting to sound like a Caribbean vacation.

Although, knowing our luck, the very first hole will probably end up half a millimeter off. 🤣

But that's what building your own aircraft is all about.

Not pretending that everything goes perfectly.

It's about solving problems before the wheels ever leave the ground.

RSG Diamond. It doesn't fly yet. But it's already doing a fantastic job of raising our blood pressure. 🚁

💎🚁 **FRIDAY AGAIN! OR HOW NOT TO LOSE YOUR MIND WHILE WAITING FOR ALUMINIUM.**They say that as you get older, you become...
09/10/2026

💎🚁 **FRIDAY AGAIN! OR HOW NOT TO LOSE YOUR MIND WHILE WAITING FOR ALUMINIUM.**

They say that as you get older, you become calmer, wiser, and more patient.

They say.

We have absolutely no idea who conducted that research, but we're pretty sure they didn't include people building their own gyroplane. 🤣

A normal person orders something and checks the delivery status once a day. A slightly impatient person checks twice.

We've reached the point where refreshing the tracking page should probably be included in our official construction schedule. 😂

And it's not like we're waiting for a jet engine, golden wings, or a suitcase full of money.

We're waiting for... aluminium profiles.

Yes. Ordinary pieces of metal.

To most people, they're just materials for a fence, a shelving unit, or perhaps a particularly ambitious clothes-drying rack.

To us, they're the future skeleton of the RSG Diamond.

And that's where the trouble begins, because **our imagination is running way ahead of the logistics.**

In our minds, Diamond is already standing on its landing gear, the engine is running, the rotor is spinning, and we're seriously considering whether to bring a camera or a spare pair of trousers for the first flight. 🤣

Meanwhile, reality gently reminds us that first we need to receive those profiles, assemble them, bolt everything together, check it, calculate it... and probably discover several times that there was a much simpler way to do something.

Our 6082-T6 aluminium has almost completed its grand European tour. If everything goes according to plan, we'll finally meet it in person next week.

We cannot rule out tears of joy.

We cannot rule out hugging the packages.

We would, however, strongly advise against mentioning any of this to your family doctor. 😂

But seriously, for a moment...

There's something truly amazing about knowing that those ordinary pieces of aluminium, currently sitting somewhere in a logistics warehouse, could one day become part of a machine that lifts a human being into the sky.

And perhaps that's exactly why it's worth being just a little bit crazy.

**Have a wonderful Friday, friends!**

And if you ever happen to see a man staring dreamily at an aluminium profile with a big smile on his face...

Don't disturb him.

**He's already flying.** 💎🚁

---

And if you're curious to see how a bunch of ordinary aluminium profiles slowly turns into a real gyroplane, **stick around and follow our journey.**

The most exciting chapters of the RSG Diamond story are still ahead of us. 😉

The final stopover for our 6082-T6 aluminium.Next week, it’ll finally be with us. :D
07/10/2026

The final stopover for our 6082-T6 aluminium.
Next week, it’ll finally be with us. :D

FROM THE BUILDER’S LOGSometimes progress looks like an aircraft.And sometimes it looks like fixing half a millimetre of ...
04/10/2026

FROM THE BUILDER’S LOG
Sometimes progress looks like an aircraft.
And sometimes it looks like fixing half a millimetre of foam. 😁
This week, we’ve been working on one of those parts of building the RSG Diamond that rarely makes it into spectacular videos — turning the cabin geometry from a 3D model into real parts that can actually be manufactured.
Our original plan was to use PUR foam. Discussions with the CNC manufacturer quickly challenged some of our assumptions. Some shapes proved too fragile, certain bevels simply cannot be reached by the cutter, and PUR itself turned out to be more brittle than we would like for this application.
So we are now adapting the cabin components for PET foam.
Sounds like a simple material change.
It isn’t. 😁
Every part has to be checked again: thickness, contact surfaces, bevels, intersections, CNC tool access and, most importantly, whether something that looks perfect on a computer screen can actually become a physical part.
A few times already, the answer has basically been:
“No. The machine simply can’t make that.”
So... back to the model we go. 😁
It isn’t the most spectacular part of building an aircraft. There’s no engine start, no spinning rotor and certainly no first flight.
But this is exactly where a prototype slowly stops being a collection of ideas and 3D models and starts becoming something that can actually be built.
One part at a time.
RSG Diamond — From the Builder’s Log
Different problems. Same goal: make it real.

🔧 TECHNICAL TUESDAY — The rotor doesn’t just lift the aircraft. It designs the frame.Looking at a gyroplane rotor, it is...
29/09/2026

🔧 TECHNICAL TUESDAY — The rotor doesn’t just lift the aircraft. It designs the frame.
Looking at a gyroplane rotor, it is easy to think of it simply as the part that generates the force needed to fly.
From a structural point of view, however, things get much more interesting.
For the RSG Diamond, we plan to use a two-bladed Gyro-Tech rotor with a diameter of 8.4 m, using composite blades with a NACA 8H12 profile. In normal flight, we expect it to operate at approximately 300–330 RPM.
But the Diamond’s frame does not simply have to carry the weight of the aircraft “hanging” from the rotor.
Through the rotor head and mast, the structure must also deal with loads resulting from rotor drag, manoeuvres, changes in rotor-disc orientation and dynamic loading.
That is why, before we begin the detailed structural calculations of the frame, we need to define as accurately as possible the load cases that the structure must safely withstand.
Recently, we received from Gyro-Tech the reports from static strength tests of the rotor blades and their connection to the hub bar. These are valuable data for us, although there is still considerable work ahead in defining the loads acting through the complete rotor–head–mast–airframe system.
The vectors shown in the graphic are schematic and not to scale. They illustrate the types of forces and moments involved and how loads are transferred into the structure — they are not the results of our final structural calculations.
It is also a good example of how aircraft design works in practice.
A change to one component at the very top of the aircraft can influence the design of structures much further below.
The rotor may be above the aircraft.
But structurally, its influence reaches all the way down to the landing gear.
🔧 RSG Diamond — engineering in progress.

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