F4U Corsair scale 1/4 indoor ultralight from build to flight, no space for helium 

Designing, fabricating, and assembling a model of this magnitude is a stunning achievement, and you accomplished it flawlessly! Your flying skills are impeccable as well! Absolutely brilliant! Bravo!

I am amazed at how well your planes fly along with your ability to fly them, your building skills are impressive as well. Thanks for sharing

Such an amazing craftsmanship. Amazing work.

How on earth could a silent video with no action or drama or naked ladies be my favorite on RU-vid?? I don't know but it is!

With few exceptions HAND BUILT! You are a true Craftsman, sir! You have not surrendered to the robots.

That is absolutely STUNNING MAN! You did an incredible job, that is really something. A lot of work and you accomplished it perfectly. Thanks so much for showing this, my favorite video!

Did it again! Love the scale! Fantastic!

Love war birds. This Corsair looks fantastic and it flies beautifully too. Thanks for sharing.

Fantastic - love this model and an incredible flight envelope. Well done Sir

Beautifully built and flown. Superb..

One of the best models i ever saw

Thank you very much for the video of the manufacturing process! That's cool! I really like light large models ... Super!

Mindblowing! Well done, Jürgen!

Amazing work and awesome engineering, well done !

Wunderschön! Opportunities to fly this plane must be limited and it must be a real treat when you can!

Gratuliere Dir Jürgen! Was für ein perfekter und schöner Arbeit ! Staunenswert!

I'm in awe of your skill! Model must be incredibly delicate.

A BIG and awesome job of construction and engineering. Thanks for sharing your talents. Shalom

Congratulations! You are a genius, and the way how you manage the weight and balance for your airplane is amazing. Thank you for sharing. It's a great airplane from a great builder. Best regards from Mexico

Thank you! That was very nice to see how it is built. To keep planes light need as much skills (or more) than regular outdoor model..

A feat of miniature aviation engineering,congratulations sir on what must be this years most interesting & innovative model aeroplane,beautifully flown too.

That is a very awesome build. I really like the Corsair. Good job!!

Wow great build and flight.....😎

Love your planes and videos. Good job!

That's awesome. Great work!

Amazing job, its art in the air ! Congrats my brother 🎉🎉

CONGRATULATIONS FOR THE PROJECT

Amazing awesome skill and talent, great building skills. I’m impressed, plane looks and flys great .good work 👍

Unglaublich wie du solche leichten Modelle baust und fliegst lieber Jürgen ich bin sehr begeistert!

Impressive build and flying video bro. Keep up the good work!

Great combination of old school techniques and new age materials! BRAVO!

This is Awesome~it even has Retractable landing gear, wonderful! Great build~

Your work is legend.

Absolutely amazing job

absolutely WONDERBAR EXCELLENT Build And Flying Skills my Friend -

Beautiful job

Most amazing build...

This is inspiration and hope for our hobby, to fly indoors, as regulations become increasingly burdensome for us outdoors. Thank you for sharing this video, Jurgen...subscribed!

Very cool. Well done!

👍 👍 👍 Echt toll gemacht Jürgen. Sehr viel Arbeit und Herzblut haste da investiert. Klasse Ergebnis, und sooo cool vorgeflogen. RESPEKT !!!

Absolutely brilliant, congrat. from Brazil

Very nice... I really like the power system.. I wish you would’ve shown the servo and battery system. Nice and I’m sure Pappy Boyington is smiling down on you from heaven.

Such an amazing model.

WOW!! Unbelievable! Amazing! so beautiful flying slow like that - you are the best builder i've seen :) :)

Just doing the math to create the drive system is a major accomplishment. Fantastic plane and flight - well done!

MAESTRO! Greetings from Argentina.

just amazing job !!

Wunderbar !

Epic. Makes me want to do a 1/4 scale P-38 the same way. Kudos

Truly awesome!👍👍

Das ist die geilste Schaumwaffel ever... Jetzt noch einen Soundgenerator da rein... Das wäre der Hammer!

Many compliments!!!

Ive been in rc for 40 years in one form or another and I don't give compliments freely ...two words for you sir...FUCKING SPECTACULAR !!!

nice ! greetings from Bangladesh

Einfach nur toll

Parabéns guerreiro. Sensacional, você é sinistro amigo. Coisa de louco esse progeto. Lindo e completamente funcional. Mais uma vez parabéns pela tua engenhosidade

incredible!

Amazing

extra-super-delux!

Goblin 500 main bearing block? that's really ingenious!

Wow the styrofoam wheel look awesom

Браво Мастеру!

How delicate is the model? Can it be flown outside? Could it handle a rough landing? It is truly impressive. I'd love to see it in real life. Capped off with a beautiful landing!

Now this is bad ass.

3d printed parts? Propeller? I love the design and build Work of art! Well done indeed!

Well Done 👍👍👍

amazing!

Awesome build! My baffled how the wing supports are mixed between ones with holes/space to save weight and a couple that are completely solid. Are there ways to calculate the load those supports have to hold and how many supports you can get away with punching holes in? or was that more of an educated guess? Thank you for not putting loud, annoying music in the video lol, I was convinced my sound was muted.

I think it should be the best way to reproduce the flight of the wonderful FIESELER STORCH Can you fly outdoor? Great talentS, indeed. Thank you so much to make ouf dreams come true

Awesome, amazing flight. About how much does the ready for flight aircraft weight?

Great job, standing golf clap from me/. :)

Will you consider making a kit for more ppl to enjoy such a aircraft.. Regards FeliX Thng Singapore.. it flies fantastic

Bravo.

Perfekte Ergänzung zu den reinen flugvideos des Modells, gefällt mir sehr, danke fürs teilen. Darf man fragen wie und aus was du den propeller gemacht hast? Ausserdem würde mich interessieren wieviel zellen und Kapazität der verwendete Akku hat.

Wow!

Sweet juice!

Well done, fantasitic model and even with fixed undercarriage it would have been good but with retractable undercarriage as well it made the model excellent.

Very nice plane ! I build large scale rc planes for outdoors, I had never even seen or heard of this kind of ultra light rc plane. Do you use a sound system for engine sounds and how many rpm is the engine spinning. I saw a different video of it flying before watching the build video.

Wirklich schöner flieger, ich weiss echt nicht, wie du das hinkriegst!

wowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww.. beautiful

Fantastic job. I am curious what drove the decision to use a 4 blade prop rather than the traditional three. Can you explain possible design differences or challenges involved? Does it change the flight characteristics or speed?

Wow! How does it fly outside with a little wind? Really good flight thanks.....

Is it really 3.8 kg? It flies like 380 g. I have a glider of 2 kg and same wingspan - it flies at 100 kmh and 20 kmh stall speed. Looks awesome!

Was ist die maximale Gewicht für den Modell? Ist sehr Schönes! Dank für teilen.

wow.

what do you mean when you say, "no space for helium". Sorry, I'm new to this and am not sure what you say there. Edit: ok, i think you're saying for all doubters that you are not doing trickery with light-weight inert gases , is this correct?

Do you have a link to the reduction gearbox? I've been searching for one for my 1/5 scale AT-6 but have no luck. It will be about the same weight and I'm curious about your power setup. Thanks

How much for a kit or Complete model of this Thanks.

the word "Amazing" is too mild, but from concept, to construction to actual flight, the entire project is at least amazing!

where did you get this kit ....... amazing

Absolutely incredible! Please tell me what the prop was made from? I assume the trick to slow scale flight indoors is large slowfly type props but you pulled off a scale looking prop for low rpm...I am very curious to know more!

What’s the term “no helium” mean indoors ? Ultra noob asking:)

Is there any way I can get plans for this? If there is how much are you asking in U.S. dollars? I would die for a Corsair this size If there are no plans any recommendations on how I can do this?

Can this be flown outdoor too?

depron 3mm o 6mm ?

Anyone know what make is this kit? Would like to build one

can we fly this out door

YOU PLACED A REDUCTION BOX IN THE ENGINE TO REDUCE THE SPEED

FOR SLOW FLIGHT

!!!!