Epic DIY RC Piper Cub Full Build & Flight
ฝัง
- เผยแพร่เมื่อ 22 พ.ค. 2024
- STL Files: 3dlabprint.com/shop/piperj3cub/
PolyLight 1.0 LW-PLA: 3dlabprint.com/product-catego...
Propeller Wall Art: cults3d.com/en/3d-model/art/p...
Thank you so much for watching!
If you like videos like this, consider buying me a coffee, it really supports me: www.buymeacoffee.com/troymcmi...
See what else I am working on:
/ troymcmillan_rc
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#3DPrinted,#RCAirplane, #ItFlies
Specifications:
Wingspan: 1068 mm / 42.0 inch
Lenght: 675 mm / 26.6 inch
Height: 310 mm / 12.2 inch
Wing area: 18,15 dm2 / 1.94 square feet
Wing loading: 31 g/dm2 / 15.3 oz/square feet
Center of gravity: 44 mm / 1.73 inch from leading edge
Airfoil: LHK12 modified by 3DLabPrint
Print weight (LW PLA): 224g/7.90oz
RTF weight W/ Floats (3s 1000mAh): 560grams
Check out my Amazon Storefront for a convenient list of parts specific to this plane:
www.Amazon.com/shop/troymcmillan_rc
Parts Needed For This Build:
2830 1300kv Motor: amzn.to/3zTTljA
30amp ESC: amzn.to/3bbJgEb
9x5 Wood Propeller: www.masterairscrew.com/produc...
9x6 Propeller: amzn.to/3xVLQpQ
3s 1300mAh Battery: amzn.to/3zVUZBe
4x 9g Micro Servos: amzn.to/3xLVw69
4x Micro Servos (Better Quality): amzn.to/3NlZiIV
3pin wire assortment: amzn.to/3l1xNYt
DX6e Transmitter & Receiver: amzn.to/3OEXTyv
AR620 Receiver: amzn.to/3j4PbK4
NX10 Transmitter: amzn.to/3NgamYf
Inexpensive Transmitter & Receiver: amzn.to/3tWTPSb
1in Velcro Tape: amzn.to/3QMhHl9
2mm Carbon Fiber Rod: amzn.to/3NkOHhs
3mm Screw Assortment: amzn.to/3zWgjGR
Rubber Bands: amzn.to/3HKV78A
3D Printers I use and recommend:
FLSUN Super Racer: amzn.to/3t8H9Y2
AnyCubic Kobra: amzn.to/3wZHyx9
AnyCubic Vyper: amzn.to/3AJqwTM
Artillery Sidewinder 3D Printer: amzn.to/396eqIp
Artillery Genius 3D Printer: amzn.to/39cA6CZ
Ender3 V2: amzn.to/2SmLOGk
Twotrees Sapphire-PRO: amzn.to/3wtNOLz
Anycubic Mega X Printer: amzn.to/3f4oS89
Fokoos Odin-5: amzn.to/3fAES06
Tools and Supplies used:
Spektrum DX6 Controller: amzn.to/3m21tGz
Spektrum NX10 Controller: amzn.to/3jnjvST
(Inexpensive transmitter) FlySky transmitter: amzn.to/3z9HHAF
(Inexpensive receiver) FlySky receiver: amzn.to/3GANRLZ
Receiver: amzn.to/3j4PbK4
Battery Charger: amzn.to/3M5EVzj
Charge cable: amzn.to/3M7CBHQ
XT60 connector: amzn.to/3PWSowj
Assortment of 3-Pin Extension Cables: amzn.to/3l1xNYt
Z-Bend pliers: amzn.to/34mA0rt
2mm push rod ends: amzn.to/3nnjD4U
CA Glue: amzn.to/2J8EvNW
CA Accelerator: amzn.to/3fpbycz
Low-Voltage Tester: amzn.to/2Yk0A0w
Hot knife: amzn.to/3nrCwUH
Drill Bits: amzn.to/3nIJzrx
Hobby Knife: amzn.to/3eYOYJq
#11 blades: amzn.to/3vTJZ2W
Build Mat: amzn.to/3vJmauw
Onboard Camera: amzn.to/3rp2OrH
Lead weight: amzn.to/3cFnzeu
Soldering Iron: amzn.to/3NCsLiy
TIMESTAMPS
00:00 How to Build 3D Printed RC Piper Cub
00:35 Why to use LW-PLA vs PLA
01:03 How to Print using Prusa Slicer Software
02:01 How to Setup Cura for 3D Printing
02:24 How to Assemble the Fuselage
02:42 How to Assemble the Tail Section
04:28 How to Assemble the Landing Gear
05:42 How to Setup the Motor, Propeller and ESC
06:36 How to Assemble the Wing
07:25 How to add Servos to the Wing
07:40 RC Plane Decals
07:53 How to attach the Wing
08:30 3D Printed Cub Maiden Flight with Wheels
09:42 How to Build the 3D Printed Floats
10:33 How to make LW-PLA & PLA water proof
10:50 First water Taxi
12:12 3D Printed Cub Maiden Flight with Floats
Disclaimer: I am sponsored by some of the products I mention. However, all of my opinions are my own. Some of the above links are affiliate links, that does not effect the price you pay for a product, but I may receive a small commission if you make a purchase. This helps support my channel and allows me to continue to make videos like this. Thank you for your support!! - วิทยาศาสตร์และเทคโนโลยี
Nice build and flights, welcome to float flying! I have about a 2-acre pond on my property that I prefer to fly from, float planes are always on my list. Super glad to see this Piper out there, and free! I've purchased a few from 3D Lab thus far and have been very happy with them. Currently building the AICHI M6A SEIRAN/NANZAN from them with floats. Love your videos, and it's nice to see someone with the same hobby. Yellow PLA ordered :)
What a fun and amazing build. Very cool to see flying on floats, with all the scale details!
This plane turned out great, and I'm so impressed it flies so well too!
Thank you for bringing us this great model!
Thank you! It was such a fun build. Hope you enjoyed it! 😊
Wow, thank you for sharing it!🙏🏼
Love the video!! Also I really like how this model has no carbon fibre or magnets. Though those are not expensive they can be hard to come by. This is a truly 3d printed models and is definitely next on my list!!
I feel the same way, I'm so glad they steered away from using those for this plane. It makes it easier for everyone! Have fun with the build 😊
I agree it's cool if you don't have or have access to any other materials, but I'd probably modify the wing to take a few small diameter carbon rods or one box rod, just for my own piece of mind. I've had a plane or two that were designed to not use spars, but over time the wing finally taco'd.
Ola amigo , fiz esse modelo mas ficou pesado eu uso a ender 3 pro, me diga qual o arquivo para ender 3 correto.
Great job! Really nice little Cub. Going to print this now. 👍🏻😁
Thank you! Have fun with it 😊
Great job! Nice video! Thanks for sharing!
Hermoso... Gracias por compartir tan maravilloso talento. Algún día seguiré tus pasos.
This float addition is cool!
Its my favorite part!!
Awesome video Troy, I'm building this one!
Great job!
Everything fits so nice
Your results may vary. Mine printed like junk. So much that I’ve given up on LW-PLA and airplanes.
Very nice prop!
Always, Great job!!
thank you so much! 😊
Super nice video. Great first water landing! Keep it up!
Thank you so much!! Flying it off water was so much fun
Highly underrated video. Nice work man!
great job , i purchased this plane off someone else on eBay and had a bad experience assembling it so now Im going to get a 3d printer and make my own piper cub , then the zero ,i purchased the files off 3dlabprint , your video answered a lot of my questions thank you
Awesome as always!
thank you so much! 😊
Excellent job
thank you!!
Nice job.
Yeah, so I looked at this print; then I found this video. I'm pretty familiar with RC helicopter builds and wanted this to be my 1st airplane. You're video and tutorial showed me everything I needed to know! Just FYI, some of the critical details were blipped over by the 'keep with the music beat' pace of the video. It wasn't missed by me, but I'm sure a few are asking WTH just happened between build segments 🥸
Thank you so much! It looks like the perfect thing to practice with!
😊
Impressive
thank you!
Awesome !!!
Very nice!
I printed this in lightweight pla. I also printed your a21 airliner. Keep up the good work 👍
Been waiting so long and its totally worth to watch. U rock 🤘
Thank you so much!! 😊
pretty cool
You make excellent video's ,, so well edited
Thank you so much!! I really do appreciate the feedback 😊
Another great build! I’d love to see you make Planeprint’s Rise glider
That's what I've been waiting for like 2 weeks 😍
Same as you 🍻
Yes!! The wind is crazy here in Vegas, I had to wait an extra week for it to calm down
@@TroyMcMillan it's okay man, I'm glad to see that there's no "and crash" in the video title. Good thing that you waited a bit, but still I could hear the wind blow in the camera mic. Do you enjoy building the planes or flying them more? I know that it always hurts to crash any of the build but you're really nice pilot when you managed to get the plane in the air and then safely land on water. Great job, love the vid editing too.
@@LordMarinade I definitely prefer the building and tinkering aspect of this hobby. It is kind of both though because it is really satisfying to see it fly well after spending so much time building it!
Crashes are a part of the hobby and I always learn a lot from them, but it is soo nice when you can bring it back home in one piece 😂
And I appreciate the feedback on the editing! Thank you!
Hey, can you link the tire and engine pieces that you custom made? I just thought it would really look nice on my plane :)
Yes that would be nice.
Oui je pense aussi
I owned and flew 2 full size Luscombe airplanes - an 8A and an 8E. If you ever think of making a Luscombe with the same technique, that would be awesome! Great job Troy! Love the build and video! What camera(s) are you using from the plane?
Very Beautyvoll Airplane
I'm in the process of of printing and assembling the Piper. Very, very impressed with the model. It is obvious that a lot of thought went into its design so as to make it both strong and easy to assemble. It appears to be much more robust than the Eclipson models.
Hi, I'm having trouble finding the push rod wire or cable. Where does one find 0.8mm music wire? Not seeing any thru Google search and not in the build list. Most push rods are at most 450mm and one will need at least 500mm or more to fit.
I printed one as well, it came out really nice. It was great of 3DLabprint to make this a free download. I printed mine in Polymaker Lightweight PLA on my Creality Ender 5 printer and it was an easy print.
What was the weight like for your print? I'm printing one out of Polymaker LW PLA right now and my fuselage came out at 117g, almost as much as the PLA version in this video.
Hey guys, I'm going to be using the same Polymaker Lw-pla. What were your settings?
For the engine detail parts you could put a colour change in the print at the required layer height. It's easy in prusaslicer.
Super easy.
GREAT JOB Troy!!! Can you consider sharing cover of the tire .STL Please. Thanks.
Yeah I will put it up on my Cults page in the next day!
Fantastic model¡¡¡ I noticed a wooden propeller when you were assembling the Piper. It is better a plastic prop if you go to water. Regards
Muy Bueno!!
Muchas gracias!
wow its such cool
Thank you!!
@@TroyMcMillan sir, how much material is needed to print it the lwpla ?
@@jakubzabocki6182 its a little more than a quarter of a roll! You could very nearly print out 4 of these planes from a single roll of LWPLA
Nice
thank you 😊
@@TroyMcMillan I wana do stuff like that to
Hi, great build! I was wondering where to purchase the correct wires needed for the elevator and rudder servos? Thanks!
Love you Video too! 😍👍👍👍
Thank you!!! 😊
What is the Wingspan Troy! Very nice looking Micro RC Piper J-3 Cub Troy! Wonderful building skills my friend!!😉🛩💯
Thank you so much!! 42" wingspan!
@@TroyMcMillan your welcome sir!!
Instead of cutting the engine shaft, you can uclip it on the other side and smack it couple of times with hammer and it goes through (comes out on other side). That way if you later need the normal shaft, you can re-use the engine.
Possibly needed the room behind the motor.
I love this vid. Great job & thx for the help/demonstration. When printing the wings, how do you get good/solid ribs to print when they are essentially spanning the print walls/wing skin? All off my ribs are sagging because theres nothing to keep them flat during the print. Help please!
Awesome video! I'm waiting to get into the 3d printing rc hobby. I have an Elegoo Neptune 2. Its pretty similar to ender 3. Do you have any tips on printing the LW-PLA? And do you thing i can use the pre-sliced files on my printer? Thank you for an awesome model. Also do you think that this model could be printed in regular PLA?
So cool!
I got a Bambu P1P for Chriistmas and I just recently stumbled onto 3D Labs planes. After sifting through everything, I chose the Piper Cub as my first project. You definitely paved the way with this video! Excellent work. If mine turned out half as good as yours, I'll be happy.
Did you get the files to work? When I slice fuselage part 2 it wheigh 142g alone.
Thanks!! Have struggled with LWPLA printing, but really want to finish a plane. Downloaded this and Prusa slicer. Fuse printed beautifully in ColorFabb LWPLA! Wing just started. Thanks for the Prusa hint! Seems to be the ticket for me.
That’s awesome to hear! Thanks for letting me know it’s working for you! 😊
did you use the original prusa printer setup or did u go for the printer setup in the 3mf file? I haven't started printing yet, but i'm thinking go for the fillament and print settings in the 3mf file but use the prusa printer settings.
@@andreasaure6420 I used the Prusa slicer, and the 3mf files. I used 100% whatever settings came with the 3mf file - I didn't change a thing. I didn't even change to a Ender 3 in the settings - just loaded the file, sliced, saved to the card, and printed
@@scottiniowa1 ok i didnt use the 3mf files i used the gcodes :) but i think i should maybe do some tweaking since i use esun material insted of colourfabb
Done good
thank you!
Love your work! Wish my prints came out like yours .... will you share the Prusa settings?
Great
Whoa!, I'm used to balsa planes!
Nice work as always! How did you learn Fusion360, your build of the AA bird a while ago was really amazing!
Hi Troy, thank you very much for all your well documented build guides! Would it be possible for you to do a video on the Bungee Prop plane from 3DLabPrint? I a completely new to RC airplanes, and I think this is a great starting point for beginners, due to plane's speed.
I’m trying your cub as a first lw-pla plane print. It’s going ok but.. like many I’m a ender 3 entry level series printer owner. The Prusa printer is it seems is a big step up but too late now. Also most advice given in user groups is to use Cura or a Creality supplied version of it. So knowing nothing about 3D printing some time ago, we/I ended up with a Creality printer using cura. Trying to sort out the Prusa settings to load into cura has me a bit overwhelmed. So I’ve used a work around of loading the .3mf into Prusa and custom add the cura start code with a BL/CR touch g29 and left purge line the .3mf files don’t add. I save these for future Prusa reprints. Your gcodes are great except no BL touch support or left purge line included.
Is it possible to include actual cura files in your place for purchase? I hope try printing some of them after I master printing and assembling the test cub. Yes I will focus on using Prusa slicer but I need to find out how to make the start code I like/need permanent and not over ridden by the imported prusa start code. Adding it to every to be printed file is time consuming.
All said, the prints are slow going dealing with the start code, but gong good and I hope to be test flying the Cub very soon. Not planning on printing a lot of yellow planes my first roll of lw-pla is while so I’m assuming a coat of testers cub yellow paint will work.
The way your designs snap fit together is a amazing design.
Awesome video! Troy, could you share the printable float files?
Hi...great channel. Its been a long time since I've been in this hobby and am thinking about getting back into it. What would you suggest for a printer. I have -0- experience with 3D printing but this seems to be a lot of fun. Any other suggestions would be great...perhaps a video for people thinking about getting into this. Thanks in advance!
I built this using the eSUN LW PLA and the printing of the files was easy using the prepared gcode or the 3mf files on a Prusa i3Mk3S. However a couple of words of warning - don't try to save time by printing more than one item at a time (filling the build plate). The filament oozes when travelling (even with 10mm retraction), so everything ends up covered in strands of plastic. They scrape off, but it's a pain to do. And secondly, I can't find any sign-writing vinyl that sticks to the LW PLA.
Yes, I agree, to get the best quality print one part at a time. For the vinyl, I use 3M high stick material that is meant for textured walls. It sticks so well, some have lasted for years now.
What if you use PLA and print multiple parts at same time, will the same problem happen?
@@TroyMcMillanHow do you print vinyl to make drawings and letters?
@@TroyMcMillanMe too I tried with the gcode but obviously it’s not available with my nozzle
@@awssassim Yes because it's using Vase mode. One path start to finish.
Strangely enough, that little thing added under the rudder the help steering in water is called a... wait, what is it... ah, a rudder:)
Ah, like an airport is a port for ships/vessels/craft that fly;).
As you know, mankind knew how to travel on water long before we could fly and there was a pretty extensive vocab that was right there for the taking for the flying folks.
that little part added to the tail isn't a traditional part on a full scale float plane. 3DLabPrint designed that to make the plane steerable in the water, but also to save weight by not adding an extra servo to the floats. It worked really well.
it makes me think about 3D printed boats!
@@TroyMcMillan sure. But still a rudder. But you did call it that later on;-). It’s all good - I love your work.
As for boats, it’s a good challenge for you but please do me a favor and research by checking out the printed sailboats like RG65 and IOMs. People have figured out the print settings for how to make waterproof hulls straight off the printer already. Still, I see tons of people doing their own boats and having to spend a lot of effort making them watertight. Not saying you should build a sailboat but do look into these print settings. As far as I remember, it’s about printing hot with no or few retractions and making sure your walls don’t have gaps. All stuff you’ll pick up faster than most:-).
And thanks for replying!
@@AntiVaganza Haha, no you are totally right. 😉Thank you, I appreciate it.
I have seen that! That would definitely be the goal to print it with it being watertight. With a boat it could stand to be printed out heavier with the extra material that would take too. A cool project for the future.
Yes, the weight penalty matters a whole lot less there.
Good luck with it - I actually think you will be helping a lot of people with that project as it seems boats are something a lot of people want to tinker with. But not many think they can print them watertight so they don't look into it and instead have to deal with coating the hull afterwards.
Once again, thanks for taking your time to reply. Really appreciate it!
Its a little funny that I don't think 3D Lab Print was ready for the response from your video. They must be happy at the sametime with all the traffic you brought them.
Haha! 😂 I’m glad everyone likes this plane as much as I do!
I'm getting my printer setup to build this plane. Awesome and timely video for me; Thanks! I watched your video on ColorFabb LW-PLA vs eSun LW-PLA. Very helpful. In your experienced opinion how do they compare to Polylight LW-PLA?
Hi!
Thanks for the high level of your videos.
Could you please tell me on which 3D printers you already used LW PLA, and what are the ones that give the best results ? Thanks un advance.
Another great video Troy. I am currently printing this plane and I have a question where did you get your decals printed? Thanks for your help.
Thank you!! I get them printed from a local print shop. Ask for them to be printed on 3M High Stick material, like material that is used for textured walls
Troy great build and mod. Where did you get the Float Design STLs?
I have been waiting for this video since I saw you were working on it. What prop adapter are you using? I don't see it in the parts list. Do you need to cut off the original shaft to use this motor?
Hi Troy! You convinced me to build this little cub! Can you by chance share the file for the wheel covers, please :) Thanks in advance!
Wow ♥️♥️♥️♥️♥️♥️♥️👍
thank you!!
We've just managed to print one. Took some time to master eSun PLW. It's like back in the days of balsa and tissue. That's how thin and fragile the model is. Super light. BTW, what cameras are you using on the plane? They look super small, yet HD.
Hi, nice job!!! did you have any problems with unsupported areas of the nose? I am trying to print with esun white lw PLA but using 3d lab print settings in prusa slicer I found that bridged areas on outside skin near the tip of the nose come out really ugly!
Hi, I'm having trouble finding the push rod wire or cable. Where does one find 0.8mm music wire? Not seeing any thru Google search and not in the build list. Most push rods are at most 450mm and one will need at least 500mm or more to fit.
Found it on ebay finally
I printed my tires using TPU 95A and they are very hard, like PLA. What filament do you use?
Safety notes:
Test motor operation without a prop.
For most radio systems:
Ensure low throttle and cut off stop the motor Then re-bind to reset the "failsafe" for loss of signal.
This will prevent motor start if you plug the airplane battery in before turning on the radio.
Too many accidents from not ensuring failsafe settings include motor off.
Most ESCs now use the default High/low of Spektrum/JR Some use Futaba's High/Low which exactly the opposite.
This is my fist build. Took a little time to get the settings on the 3D printer just right (Ender 3 3D). My only question, where do I get .8 mm push-rod wire that is long enough? I see a whole bunch online that is 12" long, but it looks like this projects take a longer piece.
Thank you for all of your cool videos. Looking forward to building more!
Great video as always. Additing the floats is such a fantastic idea, how much weight do they add with the flex seal ?
The flex seal added about 8g
I still have some ColorFabbs LW-PLA to use up before purchasing the Polylight and wondered what, if any, the difference is and if so what settings I may need to change.
It prints out pretty much the same, I use 245C for PolyLight and I use 235C for ColorFABB. Everything else should be the same!
What did you use for the decals? I printed mine but stuck on where to get those decals
Well I am an fpv drone and rc car person but this is tempting 🤔. I just ordered the Anycubic Kobra after seeing some good reviews. I assume it will do well to build this? I will figure out printing first and try this for sure. I have most of the gear already needed so this looks amazing. I find it a bit daunting but hopefully it is not that hard.
When building in the motor mount, does it take into effect degrees of throw/tilt to compensate, or is it a straight in shot?
Avery nice project that you have presented. I have printed and assembled my model and am wondering about the C.G ??
Sorry about that ...just found it (should have read the small print. :
On Printing with regular PLA I have so much issues in all Wing parts. The brodges which start at layer 78 hangs always, no matter which setting. Bridging settings doesn't have any effect to it. How you did that? Or did you have same issues in the Wing parts? Thanks for tipps and tricks!
Nice design job. Flies well. Is it strong enough for aerobatics - loops, rolls, spins?
Which 3d printer did you use for this? Was it their super racer or a different model?
i’m printing one of these now. can you go over the prop choice? i see the guide says 8/4 but i love the wood props. this is my first plane so don’t really understand the impact of 9/5 vs 8/4. do need larger kv motor for the 8/5?
Hi Troy,
Do you not experience any heat problems with brushless motors and PLA? If not what's the secret?
Troy, I have been following your channel for awhile now and love what you do.
I would love to see you build the B-25 Mitchell from 3dlabprint if you’d be willing to do that build.
I'm looking at buying the FLSUN SR for printing planes like these, would you recommend it over any other printers in the price range. I'm familiar with Cartesian printers, but I really want to try a delta this time around.
Nice build! I’m looking at making a display model for my office. Could this be scaled up 25-50% without issues? Thanks!
To prevent the wings from sagging due to sunlight, we recommend 1mm carbon rods instead of filaments.
But it's PETG I think. Resistant to higher temp. I'd actually use ABS in mine.
hello. I just discovered your channel and thanks to you I discovered the existence of the LW-PLA filament that I did not know. I do model making and I have a Sidewinder X1 printer. I want to print your plane. as a slicer I use Simplify 3D and Cura. you who print on the printer that I own, would it be possible to have the print settings for the LW PLA. thank you in advance. sorry for the translation but I am French. thank you for all your videos which are very interesting. Cordially
I seen the amount of super glue you used on the servo's when putting them in, would it not be better to use just a bit on the edge of the servo in case something should happen to the servo and it needs removal to be replaced?
Lw pla planes are great if you already know how to fly. No so good for newbies that will crash a lot learning. I Built and rebuilt 3dlabprint’s cub at least 3 times trying to learn how to fly until i finally put it aside and designed and built a foam plane that could withstand all the crashing I went through learning. The point I am making is that its not about how repairable 3d printed planes are ( and they are quite repairable) its about how durable they are. A lw pla plane is quite fragile. One small mishap, and you’re done flying for the day. With foam, you may crash and the plane is only just a bit dented, or easily hot glued back together in the field.
I totally agree with ur comment. I'm mid build with this first 3d printed one but have been flying foamies for a few years. Kind of know what I will expect but at this point it's an itch I want to scratch. Foamies are so much quicker to get back up with when a crash happens.
@@ArceezRC upto 9 rebuilds on the cub. Me thinks I may be cursed to crash that model the most.
@stevetomassetti4420 I have a plane that's just like that but it's a foamie with a janky nose but still flies with a little E6000. Thx for ur response!
Awesome project! By the way, what is the battery run time?
@TroyMcMillan what is the setting for top and bottom layer on fuselage in cura? Trying to slice it right have all other settings set thankyou!
If you print with regular pa do you have to add retraction
padu bro🇵🇸🇷🇺ilike
😊😊😊 thank you bro
Is it Possible to laminate 3D Print RC Planes? Or will it Melt? If it Possible will it effect the strenth? And the aerodynamics?
Incredible landscape - Nevada!?
make the floats with an airfoil shape to add some extra lift.
Hi!
I am printing the plane with LW-PLA, but I feel it super thin and I have doubts, how this structure will stand any forces in the air. This is my first 3D print plane I came from lammed foam world. The wing does not have an inner main spar. Have you ever experienced a structural failure in the air?
BTW I love the video and the music!
Thanks