Navigarea direct în vânt – Este posibil?

49 thoughts on “Navigarea direct în vânt – Este posibil?”

1. put the tractor prop on it and remove the wind vane, it should windmill to the rear and act like it's own wind vane, saving you the drag of the vane.
   also would be interesting to see the very inefficient method of a large 30 inch carbon prop on a low kv brushless motor as the windmill and a very efficient high kv brushless motor on the prop, directly connect the phases and they should act kinda like a synchroresolver. might let you design a more efficient boat even though you're going to lose more in the propulsion system

2. For the version 2.0 you should make the wind turbine generate electricity going into a battery/super capacitor pack then transfer into an electric motor to put the power down more effectively.

3. Vertical axis Wind Turbine… spin a generator… power an electric motor…
   or some pullies with Kevlar bands

4. I've wanted to put a full-size (but smallish) wind turbine on a full-size catamaran hull (electric drive train), for ages. I've been thrilled to see your work, and that of others, with small models, as it proves the concept can work.

5. As others I would say try a vertical turbine and have step up gearing so the torque of the turbine changes to speed in the prop (your "grab" in the water is exponential so the small prop will need the speed). Also if stick with a tractor prop for directional stability and put the rudder as close to the prop as possible so the prop wash will let you steer even if the boat isn't moving. This may mean extending the prop shaft so the prop and rudder are in line with the fronts of the hulls (which I think would work best)…

6. Your need to go Toroidal on both air and water.

7. I had a dumb idea like this around 3 months ago. It was a bit weirder including one of those omnidirectional windmill designs and a right angle change in the gear shaft in order to allow you to use multiple wind devices. It also included a pair or more ordinary triangular sails for better power. The whole system could be installed on something like a cruise ship or large cargo ship.
   Anyway I figure the biggest issue is getting a consistent and variable torque out of the propeller, the solution there would probobly be to allow the driver to actually disconnect the windmill from the shaft to stop or add power to the shaft from energy stores.

8. Culd you use a diferent kind of air Propeller?

9. really cool project! would be really cool to see this optimized🫣

10. You might try giving the blades the profile of the wind turbines

11. You should use an omnidirectional wind turbine design

12. Good add transition I didn’t skip this one

13. What about vertical wind turbines? That would remove the efficiency loss from one of the 90° gearboxes

14. You need to look at it in terms on power in vs. out. Force X velocity at the windmill vs. force X velocity at the propeller.

15. The beginning LOL

16. You answered a question I had but never found the time to answer. Would something like the blackbird work on water? Xyla Foxlin made the scale version of the black bird and had a lot of trouble getting it to work so the fact that your sail prop worked at all is impressive and promising.

17. thats crazy that the inwind design made it to the shore. awesome work!

18. You misplaced "The stoke is real" and "Scam innocent investors". They should be swapped.

19. Would gearing up the water prop help?

20. Finally! A sailboat! Hell yeah Daniel!

21. Sailboats go fastest when the wind hits the sail at such a steep angle as to create “lift” much like an airplane wing. But not up but forward. The angle has to be shallow enough to allow the wind to bulge/inflate the sail as to create the correct profile to enable said lift.

22. I've seen one that was a vertical cylinder design, with two curved blades.

23. Uh, next time, can you paint it orange?🤪

24. A governor that controls the pitch of the wind vane would be an interesting addition.

25. Sails don't push a boat. They pull it. You can't push a rope.

26. Reminds me of the video from Veritasium (I think) about a land-vehicle that was wind-powered and capable of driving into the wind

27. next time you should try a water world style vertical wind turbine

28. Be Really interesting to test Veritasiums theory about sailing faster than the wind also that could be cool

29. loved the video, I was back seat designing and thinking a grease nipple to clean out/test other grease for optimisation…I got too involved 😀

30. Next time use a vertical wind turbine design. There is a full size cat in Plymouth UK that uses this idea with a massive vertical wind turbine wing design. It's 50ft long. Doesn't matter about wind direction then.

31. Talk about reinventing the wheel in a more efficient way! Man, after seeing this I wonder if there could be a scaled up version you could attach to the rear of a larger sailboat to aid in tacking.
    I’d be down to test it on my sailing dinghy.

    I really want to see you feel the push of the wind in the sails, and the silent movement forward.
    I get that going upwind and tacking can be a pain, but it can be really fun when you’re not constricted by tight waterways.
    Also motor sailing kinda negates the need for tacking because you can just work your way up to where you can go close hauled or on a beam reach and book it!
    Super excited for ya, man.
    Hopefully one day I can make it up there on my sailboat as you are one of 5 YouTubers in Seattle I really want to meet someday.
    Fair winds and following seas, Daniel! And may your bunk always be warm and dry. 😂

32. Could you have a Continuously Variable Transmission to optimise the propellor RPM for any wind speed?

33. 3:20 in order to endure the LOAD that will be occurring at the prop, the gear on the horizontal shaft needs to be supported at both 'sides.

34. That is amazing. Have you considered converting the rotary sale energy into electricity and then drive an electric prop (or two) and dispensing with the mechanical coupling between sale and prop? Maybe some solar panels too and even a battery or two that will make it reliable under a broader range of conditions?

35. I hope you continue with the traditional sailboat design. I'm especially interested in an autonomous sailboat that can automatically tack, wear, and perform all other normal sailing maneuvers to reach any desired destination.

36. Is it really sailing tho?

37. 7:49 you are not making use of most of the TORQUE that is present in the larger diameter rotor. in other words, rpm-increasing gearing should be utilized; not 1:1.! doing this would increase the load on the rotor. and, as wanted, this load can be relied on to limit the rotation rate of the rotor.

38. Why a mechanical linkage? Generator on top, motor below. Then a small battery to tide you over any doldrums. OK, so you want to prove a point here…. but I'd counter that with – even when moored, the wind-turbine charges the battery, so you're still sailing!

39. maybe a vertical wind turbine could be used. It would reduce one gearing and is always aligned in the right direction.

40. I Wonder if you can pitch the blades to mimic throtle

41. The DDWFTTW car isn't … powering the vehicle by its wheels.

    The wheels are transferring energy that has been applied to the vehicle (motion) and pushing the propeller blades.

    The propeller blades are in effect making the wind "hit" a slower moving object. (Think about what the wind impacts from the perspective of a 2d line in the direction of the wind. The propeller is angled, and when the leading edge enters the vector, it then "gets closer" to the wind as the propeller passes it, in conjunction with the motion of the vehicle this means the wind "hits" a slower moving object).

    Ultimately the DDWFTTW vehicle is fully driven by being "pushed" by the wind. The wheels transfer some of its forward momentum into the blades, the blades then present a "slower" surface to the wind.

    So when the Blackbird is travelling at wind speed, it still gains momentum because the surface of the propellers is travelling "slower" than wind speed (due to its rotation).

42. Yawn paddle wheel and duplicate the black bird wheeled vehicle but for water use come on man how could you NOT see this? hehehe

43. It's not a windmill if it doesn't make flour.

44. Veritasium would like to know your location

45. 1 like = 1 thanks to Daniel for recharging your creative batteries

46. Im really surprised you didnt think of gear reduction.
    Increased prop speed per same amount of wind turbine speed.

47. Hey you should get inspired by water world movie use a vertical axis wind turbine. So it can work on any wind direction. Also using rotation sail drive (type of propeller mount) will be more efficient for turning the boat than the rudder, but probably losing some energy in the gear system.

48. Catamarans don't like having a central rudder; it will be a lot more effective if you put it on one of the hulls (or better yet, put one on each hull).

49. lil, jump scare with the sail boat there haha

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