Der Emil
Khurram Wadee ✅
Axel 🚴😷🐧🐪⌨ | #WeAreNatenom@Ailantd: I like the first and the second one most.
The first one, because it looks like just a sailboat with wheels and a chassis.
The second one because it reminds me a bit of the vehicles in @simonstalenhag's painting "Missing Person" from 2015 (see https://simonstalenhag.se/other.html), but with a #FlettnerRotor and some #OverlandTrain vibes.
(I hope you don't mind the comparison, but despite having different styles, your and Simon Stålenhag's art both sport #RetroSciFi themes which I enjoy a lot.)
Dustsailor#GutenMorgen , #Schiffssamstag - Heute ein Ausflug in die Geschichte - Der Flettner-Rotor in Kiel
1924 wurde der Segelschoner "Buckau" in #Kiel auf die Initiative von Anton Flettner zum Rotorschiff umgebaut. Das Schiff diente dazu die Theorie des Flettner-Rotor-Antriebes in der Praxis zu erproben.
Ab1925 fuhr die "Buckau" auf der Nord- und Ostsee als Vergnügungsschiff.
Der #FlettnerRotor ⬇️
https://de.m.wikipedia.org/wiki/Flettner-Rotor
#alternativeAntriebe #Schifffahrt #Schiffsantriebe
📷 #Schifffahrtsmuseum Kiel
Andreas@Kanalmatrose Flettner-Rotoren. Der neue heiße Sch... - allerdings rund 100 Jahre alt. Senken den Verbrauch von Schiffen um einige Prozent. Sieht skurril aus und auch die Theorie klingt crazy, hat aber wohl einen fundierten wissenschaftlichen Hintergrund. Auch in der Ostsee fährt eine Fähre mit #FlettnerRotor.
hackaday unofficialMagnus Effect Propels This Flettner Rotor Boat
The Magnus effect is a interesting and useful phenomena. [James Whomsley] from [Project Air] decided to put it to work on a small radio-controlled boat, successfully harnessing the effect. (Video, embedded after the break.)
The Magnus effect is an interesting thing, where fluid flowing over a rotating object generates an aerodynamic force at a right angle to the direction of the flow and the axis of rotation. (It's why curveballs curve.) This can be used for propulsion on a boat, by spinning a tall cylinder called a Flettner rotor. This takes advantage of Magnus effect to generate thrust.
The boat uses a 3D-printed hull, sealed up with a leak sealer spray and lots of spray paint to avoid leaks. In the center of the catamaran design, there's a spinning rotor belt-driven by a brushless motor. Outside of the rotor for thrust, a simple rudder is used for steering.
With the rotor turning, the boat was able to successfully sail along with the benefit of the thrust generated from the wind. However, there were teething issues, with heavy winds quickly capsizing the boat. [James] realized that adding some proper keels would help avoid the boat tipping over.
We've seen [James] around these parts before, namely with the Magnus-effect aircraft that preceded this build.
[Thanks to Baldpower for the tip!]
R0uxSchau dir "Verlorenes Wissen: #Alternative Antriebe | Terra X mit Harald Lesch" auf YouTube an - https://youtu.be/dcrXdvgvhi0 #FlettnerRotor
Verlorenes Wissen: Alternative Antriebe | Terra X mit Harald Lesch
R0uxSchau dir "Verlorenes Wissen: #Alternative Antriebe | Terra X mit Harald Lesch" auf YouTube an - https://youtu.be/dcrXdvgvhi0 #FlettnerRotor