How to join a large composite aeroplane shell

[@johntenhave1]

Stunning work!

[@nevillecreativitymentor]

2020 Bump ... that is exceptional work . ... I am from India and such stuff just does not exist here. Very happy for you guys ... that you can do such amazing things.... EDIT : its 2020 .. where are the flying videos?

[@andreschavarria1450]

Dear Neville, thanks for your long lasting interest in our project. No flying videos so far and it will still take some years until we have some. Nevertheless, there has been quite some progress since we shot this video. At the moment we're working on a few of the many and time consuming details: We're desgining the controls of the tail wheel and elevons, and we're working on the cooling concept of the electric motor and inverter. Since the video, we produced dozens of important parts, including seat, seat spar, many composite bellcranks, control rods, tail springs, rollover ribs, etc. If you'd like to follow regularly the progress, you're welcome to subscribe to our Instagram and Facebook pages: instagram.com/hortenmicrolight facebook.com/hortenmicrolight We also have a build-blog with much more details, but less regular updates: hortenmicrolight.wordpress.com/ Best regards, Andrés

[@nevillecreativitymentor]

@@andreschavarria1450 why not edit your description and add the insta and fb links there too ... meanwhile your wordpress page does not open ... hmmm like you said "less regular updates" 😃

[@foesfly3047]

This project is very Very interesting and your skills are enviable. I understand that filming, editing and producing these videos is difficult and requires time that could be used for other tasks. But please forgive my being selfish. I really hope you resume creating and sharing them. I’m now following you on Facebook but these videos are just the best 😎🎩♠️💙

[@JavierChiappa]

Amazing Job!! I can't wait to see a flying wing again, in real scale! May the force be with you and have a strong glide ratio!

[@andreschavarria1450]

Thanks Javier! We'll post here more videos while we build the wing. We also have a blog, where we post about the progress on a reular basis: hortenmicrolight.wordpress.com/

[@pjpankras]

Amazing project! Looking foreward to the rest.

[@andreschavarria1450]

Thanks Peter. We also are eager to have more parts. We'll start with the cabin's mould the next weeks (waiting for templates).

[@pjpankras]

I love flying wings, with the Horten designs on the top of my list. I planned designing and testing a scale model of the IX as it's one of my favorites, but decided to try and look for info on a pul 9 or 10.. but cannot find much about it. I love your 1/4th scale version of the schneewittchen. You have any plans of sharing or selling a basic drawing of the scale model. Does not have to be that detailed.. outline, wingprofiles and angles should be enough. Anyway, good Luck! I'm keeping my eye on this project.

[@andreschavarria1450]

The planform of the Pul9/10 are very similar to the H-VII, but with modified sweep back and span. I know one of the builders of the Pul9/10 and had a chance to see the desing. In my honest opinion, Reimer Horten simply modified back in the 90s the design of the VII to match the needs of the Pul 9/10. I've heard that the VII was one of his most favorite wings. Both the PUL9 and 10 have up to a scaling factor the same planform. Regarding Schneewittchen: I don't distribute drawings or information on the layout, sorry, but I have a three side view in my blog: hortenmicrolight.files.wordpress.com/2015/08/schneewittchen.pdf

[@pjpankras]

Yes, I found the 3-view. But my main problem with flying wings is that I don't know enough (or anything) about aerodynamics and airfoils. So I have no clue what airfoil to use and what wing incidence angles. Studying the Horten drawings by A.L. Bentley I see the incidences at each rib, but I'm not confident enough to just pick an airfoil and build something out of the blue. Do you have any airfoil recommendation and wing incidence values if I would like to attempt to build a scale version of the Schneewittchen?

[@ladraode9dedos409]

Great job!

[@dejayrezme8617]

Holy shit I thought this was going to be a drone or something but an aircraft for one person? That is so awesome!

[@andreschavarria1450]

Indeed no drone ;) It's a one seater with a max. take of weight of 240 kg (530 lb). The empty weight will be below 120 kg (265 lb) meaning that the payload is at least 120 kg...

[@dejayrezme8617]

Well I'd be a little bit too fat. But I bet this is a great way to stay motivated to stay thin hahaha. Eat too much and you fall out of the sky ;) Could a very light craft like this be solar powered? I know the Solar Impulse plane weighs like 2 tons and has the wingspan of a boing.

[@andreschavarria1450]

The "payload" is bounded by the very low minimum speed (55 km/h or 34 Mph) prescribed by class (120 kg microlight airplanes). It could easily carry more, if higher stall speeds where allowed... Regarding solar power: Solar cells are quite weak and bring substantial extra weight. This means that you need a large cell surface to have sustained flight over a full day or longer. You must have roughly twice the power usually needed to keep height, because you have to charge your batteries for the night. That's why Solar Impulse is so large... Nevertheless, nurflügel have a large surface compared to usual airplanes, reach good glide performance with less span, have some structural advantages and could be well suited for solar flight. However, a solar powered Nurflügel would still have to be very large compared to a usual microlight. The laws of physics can't be outsmarted...

[@dejayrezme8617]

Yeah. Maybe you can land every other day to recharge. So you would recharge one day, fly every other. BTW can you use height as an effective "battery" to store energy over night? Are there light planes that can land easily on a field or even vertically? I saw a personal electric aircraft that had a relatively simple mechanisms with multiple electric motors integrated in the wing that can turn vertical, reducing mechanical complexity. Of course I can't find it now. I think it was this one: www.esa.int/Our_Activities/Space_Engineering_Technology/TTP2/Personal_aircraft_aiming_to_take_off_from_your_home It would be absolutely amazing to have a kind of flying "amphibious RV camper plane" that recharges using solar power. Of course that's way too heavy and crazy sci-fi and wouldn't be legal anyways. Oh well maybe if you reduce yourself to the bare essentials. PS: FYI I think it's called "One Wing" in English. PPS: Ah never mind it was the Lilium but unfortunately it's probably bunk anyways.

[@engDyar]

nice work

[@GarryOzols]

not so much a "how to" but more of a "we Did it and this is the video evidence" Not much in the way of real instruction. Awesome project none the less.

[@MrPagnu]

Andres are building a sort of lighter Pul 10 ?!? I am a true fan of flying wings!

[@andreschavarria1450]

Yep, but it's a one seater. I worked a couple of years ago with one of the builders of the PUL10 and had a chance to analyse the aerodynamic design. It had issues with CG range and with minimal speed. I'm aiming at solving this problems with this design.

[@MrPagnu]

Andrés Chavarría yes it was a real shame that Pul10 project was abandoned and I am aware of the problems they faced few years ago. I am guessing you're based in Germany and I'll be happy to follow your developments. I've noticed you're also part of the Horten believers FB group, you'll find a couple of recent posts of mine there, my name is Roberto, I am an Italian automotive engineer and pilot, I live in England, feel free to ask me the FB friendship, keep in touch!

[@vanbeekzwart]

Whats the latest update, still building?

[@andreschavarria1450]

Sure, we are working on the mold of the cabin. We have a series on making the cabin's plug, which might be interesting to you: kzbin.info/www/bejne/qHybeot7ipJrpqM kzbin.info/www/bejne/p3PLd6qted6YfqM kzbin.info/www/bejne/j5ypgqSOqJtgl8U As soon as we have the mold, making the shell of the cabin will be easy. We have to make a die for the clear canopy, so that the canopy can be produced by a specialized company (Plexiweiss GmbH).

[@vanbeekzwart]

Andrés Chavarría Thank you for your reply. Ik really love Horten designs. I have a set of drawings from An Horten 1c. It was his last glider design but he never actually build it. It is similar to the Horten 1b but without the boat like fuselage underneath the Wing, but with an retractable skid. It is a very clean design. Where are u living/building your nurflugel? Regards, Bas (the Netherlands)

[@andreschavarria1450]

I like the 1 b/c very much and thought about building one. I made thus a small rc-model before I decided to go for my own design: vimeo.com/97802783 vimeo.com/49790302 vimeo.com/75200496 We are at Stuttgart, Germany. We have a blog where we report regularly on the progress: hortenmicrolight.wordpress.com/

[@vanbeekzwart]

Andrés Chavarría Nice, i Will follow your project from now on. I Will contact you when i am in your area. I would like to see it. Regards, Bas

[@carbonarne675]

Sehr geil! direkt aboniert

[@Fryhs]

wow

[@BisdremisKostas]

it was fun for me to watch until ...internal vacuum bagging, then frustration reflexes kicked in