The very idea of 9000W motor/battery power in a product that small is just absurd. Amazing work!

So you decided to take on Red Bull and crush them, what a badass the both of you are!

What a beautiful video - Incredible engineering, clear explanations, and a father son project. Doesn't get much better than that! Great work both of you, a well deserved record.

The amp draw and ability of those batteries to discharge that fast is insane.

Think i found my new favorite channel. Having in depth technical description and great prodcution is rare nowadays, great to see the design process, would never have thought to test aerodynamics out of a window haha. Keep making videos this good, and analysis this engaging.

Been slightly obsessing about this cool thing so here's some calcs for interest's sake: If we look at the power consumption at 360km/h (100m/s) which is 5091We, assuming about 85% motor efficiency and 55% propeller efficiency we arrive at drag force of 23.8N. This can be reduced to a CdA figure of around 0.00396. Eyeballing the design section area of 150mm x 120mm gives us an A of 0.018m^2 yielding a drag coefficient (Cd) of about 0.22 or approximately that of a Tesla Model 3. This is kind of impressive except that it has no wheels, wheel arches or tyres which are one of the dominant forms of drag on a road vehicle so it suggests that there's at least some room and probably plenty for improvement. Also, at max speed of 510km/h we're starting to see compressibility effects being over Mach 0.4 in linear speed so there's no doubt that the propeller blades are well into the transonic flow regime so the 55% propeller efficiency above may be an overestimate. To make any appreciable gains in the record speed these problems will only be exacerbated. Time to get busy with area ruling and possibly ducted fans to improve the total aero efficiency. I also note there is appreciable voltage sag at the high speed run dropping down to 34V. This means that, for an assumed 12S system voltage of 44.4V nominal, there's about 2kW of power disappearing into the wiring as heat. (235A at 10V sag > 2kW). While motors are to some extent immune from increasing voltage from an efficiency perspective, the rest of the electrical system surely isn't, so bumping the voltage higher is only going to be a win, albeit with safety complications.

Congrats to you and your son on breaking the record!

This is AMAZING! Congrats on the accomplishment… a good thing that you documented everything, which is a great thing to do in engineering. Great job once again!

The fastest father/son duo on KZfaq! And in the world! Congrats! Love your work.

The left handed guy who uses a shorty pencil is the guy you should worry about.

From someone who can barely make a paper aeroplane, this is fascinating. Watching the design evolve to optimise the aerodynamics, airflow, and centre of gravity is amazing. It must have been so rewarding seeing it achieve such crazy speeds 😄

I had a very uncomforable laugh at 12 hp in a 10" frame. The US Department of Defense is going to be giving this video a good number of views i think

Amazing video, Mike. So insightful!

I loved your previous video's but this is something else. Love it, you are amazing.

Thank you for sharing your family project. Great video. I hope it inspires more father/son projects.

i’m confused? just 24k views and 61.2k subscribers? for this level of production? truly underrated!!!

congratulations To you and your Son

This is an amazing video, thanks very much for creating it. Comgratulations to you both from KZN

Fantastic video, thanks for documenting your work!

Learning breakdowns from you is awesome, please keep making more!

Wow. Amazing entineering and really well presented. Congratulations and thank you for sharing.

10/10 Stunning achievement for both of you , and being able to keep it "in the family" and have FUN together as well as keep on learning , innovating and supporting is Mega Brilliant, Well Done

Amazing work Mike and good video. You need to do more works like this. Keep it up❤

absolutely amazing. loved the use of Blender, this has so much in it... look forward to seeing more!

This is so neat to see the wonderful engineering behind this. You guys are so cool. 😊

Awesome video! I particularly enjoy the animations. Well done Luke and Mike - dream team 💪

I feel almost vindicated seeing someone else do their rapid drone prototyping in Blender, and especially your line that; "Success is achieving both excellence in performance, and esthetics" is something I've cought a lot of heat over from the pure CAD guys. Amazing work all-round!

Great stuff, Mike. Excellent

Wonderful design, explanation and experience. So well deserved.

The shot in the dark with the LED on made it all so much cooler, that is quite beautiful.

Great film, and great teamwork and perseverance... Well done on the record!

As an FPV pilot for many years, this gave me chills. Inspired!

This reminds me of the passion I had when I was a child about aviation! Working together with your son on a project like this not only is super cool, but then to achieve what you did in the speed record is fantastic! The LEDs in the tail is brilliant! I am definitely looking forward to seeing what else you dream up, design, test, tweak, get to its best version as engineers and a father and son duo? Just lovely!

What a tremendous accomplishment, Mike and Luke! Congratulations to you both on this amazing feat! You’ve created a thing of beauty, and I can’t wait to see the next iteration. Although I am not a trained engineer, I was able to follow your clear descriptions and appreciate the problems and how you were solving them. Simply remarkable. I am so happy for you both!

Beautiful explanation, thanks for taking the time.

Mike and Luke, I'm sitting here in Joburg and so proud that you guys from my hometown have achieved this incredible milestone. Great videos from you both and have already shared the links with other drone enthusiasts. Also must add that I love the fact that you designed the drone with Blender. 👍👍👍. When I saw Blender I figured you'd move over to FreeCad but I was wrong.

This has absolutely blown me away in terms of how effective your designing and surfacing was of v2 without doing aero computation. Eagerly awaiting v3!

I just built my first vertical frame and it flew away on me, it might be because my props are so close together as you were saying. Fascinating to hear more construction detail and the problems you had with your escs. also how you made your camera/nosecone and airshaper fascinating thanks a lot!

Masterclass! I’m your newest subscriber and bravo! Excellence of art, spirit and intuitive innovative engineering! 👍🏻✌🏻

Just scribed! Thank you, for sharing your knowledge! Well Done!

Excellent video! The animations were awesome and that definitely covered everything I would have liked to pick your brain about. It's always nice to hear about others design philosophy. Also I just have to mention some funny coincidences. I'm currently getting my mechatronics degree too, nice job Luke! The other one is that I had originally named my speed record project the peregrine falcon back in 2019. What are the chances?

This is amazing! It's great to know, that you have used Blender to 3d model this incredible creation 😆

Truly phenomenal! Bravo to you and your son, very inspiring video, beautiful work, and completely bonkers! Just WOW!!!

Thank you for sharing this detailed and impressive video. It gives such a beautiful insight into the whole project & engineering that went into it.

Great video and many congratulations on this incredible achievement

That’s so cool that you instilled this kind of work ethic and ingenuity into your son! My dad talk me how to drink and drive

Amazing video, this was a joy to watch!

This is fantastic. Please do more breakdowns of future Peregrine development processes!

The fact that you bring the world along your journey of inspiration, design, iteration, testing, failure, etc., is such a gift to humanity.

This is incredible Mike well done

Awesome father and son collaboration 🇿🇦🇿🇦

absolutely incredible engineering

Amazing achievement! Tks for sharing!

Bravo and thank u very much for tech details

Well done guys, this is awesome to have local guys pushing the limits like this, very inspiring! Did you ever consider running CFD on the model, and do you think that would have helped the design direction?

wow, really amazing engineering.

This is just incredible on an engineering scale and on many other levels.

What in the world? I somehow stumbled upon the coolest and best-presented KZfaq channel I have seen in years. Well done!

Besides your world record and your engineering skills … your storytelling is marvellous! Thank you for sharing your design process.

Beautiful engineering 👍🏼

Incredible work, you guys pulled off something really impressive here! Im very excited to see your next iteration

😮 that is amazing

Awesome design, execution and performance, Mike Your Bambu printer may be able to print STEP files, which will behave like very fine mesh STL files, although that depends on the slicer. Great to see South Africans setting records. Netjies gedaan.

Wow, this thing looks marvelous. Good job

You are the luckiest father alive. What a blessing to work together with the son.

Damm thats awesome!

great job guys!

Good job! Very cool project!!

Now that's what's engineering is all about. 🎉❤

Thank you for such a well spoken and informative video. I am not the sharpest crayon in the pack but I was able to follow along well. Congratulations on your world record!

Congratulations!

Awesome! Amazing to see the use of Blender for design! Open Source FTW! What OS you are using? Just curious...

Awesome work and i love the visuals

Great explanation. Love the iterative design approach.

Incredible achievement!!!

Here before this blows up. What am amazing feat of engineering, so glad to be here!

Nicely done, congratulations! :)

no one tells you the drawbacks of being an engineer. i have zero interest in drones or drone technology and yet.... air squid go brrrrrrrrrr!

I wonder what cool smooth videos you could get!

Great video and great achievement! So what sec and battery did you end up using?

Tanks in Ukraine watching nervously 🫣

Your video is so much better, nice explaination. Insane skills

Proud of your team!

Truly amazing video! Tanks for that!

I look forward to the day you reach Mach 1. Keep up the great work!

Well done! Well done! Absolute mind blown!

Beautiful! Congratulations

Amazing project

Congratulations on building such a beautiful machine! Would be interesting to explore how durable your design/build is with the goal of characterizing operational lifespan and maintenance/repair costs. I'd expect optimizing these would present a entirely new set of engineering challenges. Of course, understandably, you and your son might instead prefer to focus efforts on just going faster.

Absolut hervorragend👍👍👍😀. Meinen Glückwunsch.

My university drone team may be attempting this record next fall. Been doing some research, and I want to commend your component selection! It's been really hard finding any configuration that performs higher in thrust simulations.

Amazing determination, skills and engineering. I'm so impressed! Congratulations from near the other pole :)

Love your work. So cool 😎

Greetings from an Arkansas engineer/aviation enthusiast, Mike! Congratulations on your success and I loved your excellent presentation. I'm really looking forward to seeing your CFD-optimized revision-- no doubt you'll be able to make some solid improvements there! My money's on much longer trailing edges for the struts, 'bulbing' the nose a bit and trading the fin for basically a long cone, ha. If you don't mind some input, I do have a couple other thoughts for where one might look to keep pushing the boundaries from where you're at now (though I've no doubt there was a great deal of consideration already given to some of these that didn't fit neatly into your video). First one is weight. Frankly, you guys have already done pretty well with this one-- not a lot of fat to trim, there, but I'd be giving serious thought to how I could start cutting grams off this thing ('Do I *really* need all four motor screws? Could I make my fuselage lighter by carbon-wrapping a vase-mode version of it? Could I make my cables shorter so I'm not carrying all this copper?) Second is aerodynamic cleanliness. There's something here which may not become immediately clear from your CFD simulations. These models do not always do an excellent job at modeling either surface roughness (such as print layer lines) or the transition from laminar to turbulent flow across your model. You're really gonna want to be sure your craft is aerodynamically smooth! To give an example, it's fairly common for sailplanes to have leading edge wipers to remove bugs and dirt from their wings while in flight. These devices make about a 5% difference in performance. Your application, being small, is low reynolds numbers, which means you have the potential to promote more laminar flow across your airframe if you can design for it carefully! Again, I'd love to see a polished carbon fuselage for this. Finally-- props. For me, I'd be giving a hard look at these. No easy shortcuts here, but off the dome, questions I might have: 3 blades for more power without tip transonics? Custom prop pitch and profiles optimized for my flight profile? I would also bet good money that carbon props would perform better than injection-molded ones (less weight, higher stiffness). Vacuum-infused ideally, but forged carbon may be nearly as good and cheaper. Easy composites has excellent videos for this, as does TechIngredients. I'll be more than happy to answer any questions regarding what I've written, should it be of interest. I'd love to see this thing hit 500kmh(550?). Again, well done and congratulations on the win!

Awesome project! Looks like a fun one. Curious if you have done the math for what impact a carbon fiber exterior (or any alternative) could have on weight. The shell sure looks pretty light already.

Absolutely amazing! Congratulations!

In general, the idea of ​​such a device is not new,🤷‍♂️ it was already there, but you guys have brought the project to a really working fast state!👍 Thanks !

Beautifully told story. I really enjoyed that. Coming from the country of my birth was a nice bonus. I couldn't help but admire the beautiful location zinging by in some of those shots. You must be so proud of your son. What a bright future he has. I feel like this is just the beginning of the drone age. All the best and thank you for sharing.

Recently joined the SA fpv community, half-way through UCT mechatronics, I guess what's left is Guinness Record to match Luke hahaha. Amazing video💯😂

Amazing!