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@LaurentiusLaksamanaPutraSamude
@LaurentiusLaksamanaPutraSamude 10 күн бұрын
Hello, a very helpful series, but the model aircraft I tried to analyze is stuck on reading airfoil, even though the direct path is already stated in the .avl file. I exported the plane from XFLR5. Please help, thank you.
@pangrac1
@pangrac1 2 ай бұрын
Excellent job! 👍 I like your thinking and that you share all things you do. 👍 They say that most effective setup for windturbines is 3 blade one. Try it. Also I would like if you could design some permanent setup of electronic for reliable production of electric energy. That would be nice for all less skilled enthusiasts and makers. 👍 👍👍
@pangrac1
@pangrac1 2 ай бұрын
Nice. 👍
@nzt-48-aaaclearpill34
@nzt-48-aaaclearpill34 2 ай бұрын
It sounds like a movie soundtrack.
@der6273
@der6273 2 ай бұрын
Danke fürs Posten
@MrSovde
@MrSovde 2 ай бұрын
Could you fly from the office through 4G/wifi?
@hi_desert_rat
@hi_desert_rat 3 ай бұрын
Very nice! Subbed to see more!
@johandewaal
@johandewaal 2 ай бұрын
same here!
@Slydog43UTube
@Slydog43UTube 3 ай бұрын
Incredible, great job
@davidf2281
@davidf2281 3 ай бұрын
Cool.
@junioraguilar7880
@junioraguilar7880 3 ай бұрын
How much?
@thoramarth6353
@thoramarth6353 3 ай бұрын
Ja und super Spionage durch DJI.
@hanssvitulus5300
@hanssvitulus5300 3 ай бұрын
Jede Baumlandung ist besser als das Wasser! Wenn der Wind dich packt oder der Airbag den Hintern hebt und der Kopf im Wasser ist: Lebensgefahr!!!
@greggost6493
@greggost6493 4 ай бұрын
Windfrei Bedingungen!
@hadleymanmusic
@hadleymanmusic 4 ай бұрын
If a cri cri can, this would be even better. If someone would design some small multirotor staged rotary engines.
@anata_no_shi2366
@anata_no_shi2366 5 ай бұрын
Hi, wir machen Grade ein Physik Projekt und wollten fragen was du für die Höhenmessung und die anderen Daten nutzt
@BenjaminKelm
@BenjaminKelm 4 ай бұрын
Hey, das hört sich spannend an. Für die Höhenmessung nutze ich ein Teensy 4.1 + BMP180 Barometer. Mehr findest du in dem GitHub Projekt, was ich verlinkt habe.
@andreaparmegiani4067
@andreaparmegiani4067 5 ай бұрын
Hi, i was wondering if AVL can take as an import an .stl or some form of CAD file generated in a CAD software (i.e. Rhinoceros) or if the only way to import a geometry is through the avl geometry file.
@wordcarr8750
@wordcarr8750 5 ай бұрын
LOL, evidently this is how an "electronics person" enters/learns to do model rocketry. The "aerodynamics person" would know about relative locations of cg & cp but be at a loss in developing their own in-flight monitoring; which IMO is no small feat. Wonder why no 'recovery system' like parachute or streamer was tried? Even though a small rocket, streamer/s could have been included? The motor being a C6-7 had an ejection charge that separated the rocket sections. So further aerodynamic advancements might include a "stretch cord" that attaches to both (separated) sections, for easier recoverability, and a parachute or streamer to reduce falling speed.
@BenjaminKelm
@BenjaminKelm 5 ай бұрын
Haha, well said. Yes, there was a parachute, but the ejection charge was too violent, ripping the chord.
@HermesGrey
@HermesGrey 5 ай бұрын
Nice video man!
@BenjaminKelm
@BenjaminKelm 5 ай бұрын
Thank you! Happy you've enjoyed it!
@jottbee
@jottbee 5 ай бұрын
Danke für s teilen 😮😊
@BenjaminKelm
@BenjaminKelm 3 ай бұрын
Gerne 😊
@skgamedev
@skgamedev 6 ай бұрын
I want to use this model but make the length of it 12cm, how can i do this. when i try to change the r value, i get a lot of errors
@skgamedev
@skgamedev 6 ай бұрын
16:36 What command to put to output that file, im very stuck pls help
@therealswan
@therealswan 6 ай бұрын
great video
@xcvb2347
@xcvb2347 7 ай бұрын
How can i save just my CL distribution? I mean the values of CL in function of y
@mustafamert7008
@mustafamert7008 7 ай бұрын
Hello , how can i make my control surface to be replaced by angle.
@garyhsk8
@garyhsk8 7 ай бұрын
Thankyou for this
@tomdoly1918
@tomdoly1918 8 ай бұрын
very cool !
@alevarona7
@alevarona7 8 ай бұрын
Is there any fast way to calculate the plane polar, not the airfoil? or I have to iterate and extract the data by myself
@user-vu1ey7ob5j
@user-vu1ey7ob5j 8 ай бұрын
thank you sooooo much!
@dleojl
@dleojl 9 ай бұрын
Hello, may I know if it is possible to model a V-tail in AVL? and if so how would you go about doing it? Thank you
@user-xu9oj7ek3z
@user-xu9oj7ek3z 9 ай бұрын
Vielen Dank für das sehr lehrreiche Video!
@PappenbergerApps
@PappenbergerApps 10 ай бұрын
Danke für's Teilen!
@ma.r.6518
@ma.r.6518 11 ай бұрын
Vielen dank dir für deiner Erfahrung. Bin seit ca 3/4 Jahr Pilotin und bin happy, dass ivh Lernen darf. Weiterhin gute Flüge. Merker für mich selbst: Notfallkontakt auf einen Zettel in einem Zippbeutel 😂
@dominhhoang1205
@dominhhoang1205 Жыл бұрын
Hi Benjamin, There is no file in your link for the thesis. May I have the new link for it? Thank you very much.
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
Sorry, I've now added the thesis to ResearchGate: dx.doi.org/10.13140/RG.2.2.33557.91364
@FlorianEttlinger
@FlorianEttlinger Жыл бұрын
Seit diesem Video sind jetzt 7 Jahre vergangen. Wie bewertest Du Deine Aktion mit diesem zeitlichen Abstand, Benjamin? Hattest Du Gelegenheit Deine alpinistischen und fliegerischen Fähigkeiten weiterzuentwickeln? In Deinem Video ist auffällig, dass das Fazit "lieber Ski mitzunehmen wenn man soetwas macht" den alpinen Gefahren denen man sich hier unwissend ausgesetzt hat nicht ansatzweise gerecht wird. Offenbar wurde also nichts gelernt oder zumindest nicht das richtige. Weder diskutierst Du die Lawinensituation (Nachmittags im weichen Schnee, einige bereits ausgelöste Schneebretter sind in Deinem Video zu sehen) noch deinen aussichtslosen Aufstiegsversuch (aus Deinem Track kann man erkennen dass Du von Deinem Landeplatz zum Grat ca 150 hm aufgestiegen bist, dafür hast Du nach eigener Aussage 2 Stunden gebraucht. Das zeigt, dass Du in diesem Gelände nichts verloren hattest), und nicht zuletzt Deine Falschbehauptung auf einem Gletscher gelandet zu sein (Du bist in der Nähe der Göppinger Hütte gelandet, da ist nix mit Gletscher, das ist ganz normaler Altschnee wie es ihn halt im Mai noch hat. Der Gletscher ist zwei Berge weiter nordöstlich an der Nordflanke.). Wie siehst Du diese Aktion mittlerweile?
@ragingcanadian8987
@ragingcanadian8987 Жыл бұрын
Hello Benjamin! I have thoroughly been enjoying watching your tutorial videos as they have been extremely straight forward and informative. I was curious if i wanted to save .ps files in a specific folder, what would i type in AVL so it directs the .ps download into that folder on windows?
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
In windows you just do relative paths... where you execute your .exe, there it will also spit the output
@mariopegani
@mariopegani Жыл бұрын
Very useful content. How can I store the surface force results of more than one case in the same text file?
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
I would't know - Why not just have multiple files in a specific folder?
@intarsienschrankzwetschgen4224
@intarsienschrankzwetschgen4224 Жыл бұрын
Was ich gemacht hätte, wenn mir die Lage bei 4:42 bewußt geworden wäre: Den nächsten Hang erreicht man mit Rückenwind. Und er müßte wieder etwas tragen. Ich hätte versucht, mich da hoch zu arbeiten bis zur Wiese oben. Wenn es nicht geklappt hätte, dann Landung auf einem der Weinbergwege. Was haltet Ihr davon?
@SpaceCowboy1301
@SpaceCowboy1301 Жыл бұрын
can i use that for a formula 1 car? thanks for the video
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
Not really made for that. In F1 DRAG is your main concern - where here you want to know the lift distribution.
@albelnoxroxursox
@albelnoxroxursox Жыл бұрын
Hi, these were great videos. I have a problem - when I open the geometry window, keystroke mode does not work even though I have the cursor in the window when I hit LRUD. The picture does not rotate at all. I don't know what to do; it seems to work perfectly fine for those doing the tutorials on KZbin. Do you have any idea what might be causing this issue?
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
Sorry, no idea. Have you "clicked" and activated that geometry window?
@razorx6472
@razorx6472 Жыл бұрын
22:20 Scaling 25:20 Applying Mass to the run cases
@razorx6472
@razorx6472 Жыл бұрын
15:30 Giving Elevator Deflection 16:45 Saving Stability Derivatives to .txt file 17:45 Saving the Plots
@vojinlukic7867
@vojinlukic7867 Жыл бұрын
I am building a small scale wind turbine for my university project. The question I am interested in, is how to figure out the lift coefficient, power and rpm values to put into my calculation. How do lift coefficient and power that I want to generate effect the calculation explicitly? Does increasing the rpm put much more stress on the blades? How to quantify all these effects and decide which values I need? The diameter of my wind turbine is 35 cm. I don't think it can generate much power, maybe not even 5W? I am scared to put too much rpm, to not break the blades, and can't figure out the lift coefficient value, because when I put 0.7 it says that it stalls? Thanks in advance! Loved the video!
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
Hey, hope you're still in the process of the project. It's a multidisciplinary optimization problem: Strucutral integrity (low RPM, big blades) vs. aerodynamic efficiency (small blades/high aspect ration, mid RPM). Generally, you want to have a balanced design - just stay with acceptable blade aspect ratio (10-15) and keep RPM low.
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
And send pictures if you built one ;)
@MrWANTED44
@MrWANTED44 Жыл бұрын
Thank you, Ben! How can I use it for a free-to-rotate wing airplane?
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
Well, principally yes, but you would have to calculate all of the operation points yourself. You can't add "free rotating" bodies
@Dark_Meme_Gang
@Dark_Meme_Gang Жыл бұрын
From the AEROELASTIC MONKEYS a big thanks
@mattaku9430
@mattaku9430 Жыл бұрын
I wonder if this wing helps when it flies vertically or it just adds unneeded weight
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
The attached aileron (control surfaces) help to yaw the aircraft. Apart from that, the wings are only needed in transition or horizontal flight
@alfredspijkerman
@alfredspijkerman Жыл бұрын
Great project. Hydrofoils are indeed very efficient but control is a real pain! Another aspect you might not have thought about is that the lifting force depends on water depth too. Actually efficiency is optimal for 2-3x cord of the wing, with less water depth efficiency drops significantly. It amazes me that you got this to work with such simple and cost effective stuff. Actuators maybe above water and mechanically transfer to wingtips. Great job, extremely well done. This is really not easy.
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
Thank you Alfred, I really had to tune the system a lot before effectiveness of the control surfaces was enough. If I had time for a second design, there'd be a lot of things I'd change. Tip actuators being one of them.
@cvarun9055
@cvarun9055 Жыл бұрын
AVL isn't giving me the loading and the trefftz plane after I put in all the commands, any idea where it might be going wrong?
@BenjaminKelm
@BenjaminKelm 11 ай бұрын
You would have to specify your setup. Generally, try to work on either windows or Unix based systems supported for the application
@harveysteele7861
@harveysteele7861 Жыл бұрын
Thanks for this amazing video!!! Become a YT god > Promo_SM!!
@jorghausbrand2081
@jorghausbrand2081 Жыл бұрын
Anerkennung wurde Dir für Dein Video u. die Kommentare viel gespendet. Klar macht man immer Fehler, wenn man neues probiert. Aber warum hast Du mit so wenig Routine u. Fehlerbewustsein so viel Schwierigkeiten gleich 1.) beim Erstflug 2.) mit neuem Schirm u. absolut unangepasst 3.) im Liegegurt 4.) an einem nicht ganz einfachen SP bei 5.) schwierigen Bed. u. offensichtlich trotz langer Parawaitingzeit 6.) ohne mögliche Probleme auszumachen (trotz Gespräch mit Local) die Startentscheidung gefällt? Es reichen weniger Fehler, um in unserem Sport um's Leben zu kommen, oder? - Aber bemerkenswert scheint mir auch bei Deinen Kommentaren Deine Unbekümmertheit, falls mich das nicht täuscht. Mich würde interessieren, ob Du jetzt nach 7 Jahren noch fliegst, Deine unbekümmerte Einstellung geändert hast o. etwa von der Härte der Auslese des Fliegerlebens getroffen wurdest? Ich habe ebenfalls 2016 meine A- u. 2018 die B-Lizenz (mit 69 J.) gemacht. Alle anderen Hobbies u. Sportarten aufgegeben u. bin so - allerdings sicher zeitlich mind. ca. 3..5x leichter als Rentner - im vorigen Jahr mit insgesamt ca. 400 h (100h/a) ohne Probleme vom UP Trango xc3 (1,5a u. 150h) auf den 2-Leiner UP Meru aufgestiegen, um im Streckenfliegen vor allem sicherer(!) unterwegs zu sein. Falls Dich letztere, extrem positive, aber von Fluglehrern stets umgekehrt kommentierte) Erfahrung interessiert, antworte ich gern (WhatsApp: 0175 8012871). VhFl.-Grüße v. Jörg aus Heidenau i. Sa.
@ricokonratt
@ricokonratt Жыл бұрын
Nice to see a brand new video from you! Also great topic. Keep it up, with every video I feel the urge to join you in the maker and youtube community! Cheers!
@BenjaminKelm
@BenjaminKelm Жыл бұрын
Thank you Rico! If time allows, let’s try to do something together someday!