It's always a good day when a new Wave Rover construction video comes out. Thanks Mr Rover :) You've inspired me to begin saving up to have my own adventure.
@throughmylens5127
3 ай бұрын
Was nice to see the engineer doing the fabrication
@crawford323
8 ай бұрын
Laminar flow airfoils (hydrofoils when emerged in fluids) have their thicker section further aft and perhaps easier to fabricate using steel as the bend is more gentle. The NACA 23015 and other similar sections are symmetrical giving good lift at opposing angles of attack. They also have limited area of pressure travel which might ease the battle of rudder vs sail vs hull profile trim. I have often mused if a stouter Leeboard design with a hydrofoil section specifically designed to optimize the lift resistance depending on what tack the boat was on and which board required was deployed. This would be a bilge ballast design as retractable leeboards would require such. Attention to the attachments of a bilge keel to the hull should be considered as substantial fairings should be used to ease the flow of transitional fluids as this can create substantial drag if an abrupt 90° type of attachment is used. Study aircraft wing to fuselage attachments and see what they have done in this regard. The Nozzle effect of having a fast moving fluid or gas decelerating from high to low creates a tremendous drag. Bilge keels would especially suffer in this regard. Horner has the best reference book on airfoil sections and an extensive study on drag profiles which would be of use. A ten percent reduction in drag may be gained just by looking at the problem with a slightly different point of view. I was shocked to find something as simple as how a 90° angle could be such a source of drag. Horner's book is available for free download. The hard copy is several hundred dollars now.
@RoversAdventure
8 ай бұрын
Thanks for taking the time to write this. I'm familiar with this topic. At the speed that WR travels I don't think that it will make a big difference however we did try to make the keels as hydrodynamic as possible. Future builders are free to change my design.
@nasseemmuttur778
2 жыл бұрын
Nice to see the work progressing.
@garyblankenship9163
2 жыл бұрын
Look forward to seeing how the lead is added. A long time ago I had a 8 foot stainless fin keel made. When the welding shop melted and added 1,000 pounds of lead, it warped the bottom side panels a bit. If memory serves, that had 1/2 inch bar stock as the leading edge, 1/4 inch top and bottom plates and internal stringers, and 1/8 inch side panels.
@JoeTheLion60
2 жыл бұрын
Just one more always cracks me up .. love your work Alan and passing all your knowledge on
@RoversAdventure
2 жыл бұрын
Thanks 👍
@Garryck-1
2 жыл бұрын
Algorithm Booster! ⛵
@gunnarfernqvist4896
2 жыл бұрын
Nice work! Look like the rear of a F18 fighter jet when standing beside each other on the floor like that. Cool!
@RoversAdventure
2 жыл бұрын
It does!
@stevenwarner7348
2 жыл бұрын
I've been waiting and waiting for this video. Thanks for sharing.
@mattevans-koch9353
2 жыл бұрын
Forgot to wish Mrs. Wave Rover and Mr. Speckles a great week ahead. Don't forget to mention if you have any videos over on Rover's Rest. Will you have a walk through of the new Mrs. Wave Rover Stationary Land Yacht when it is ready? Would like to see the floor plan as I am an amateur architect. Have a great Week Alan and thank you for the videos.
@jasonmcintosh2632
2 жыл бұрын
Hi Alan, I'm happy to see you dream come together. Big thumb's up. I hate to pick on your keels, but I'm thinking that the NACA 0012 profile really won't add much... I believe that these air foils on boats are the prevent (or lower) the generation of turbulence on the leading and trailing edges of keels and rudders. I don't believe that they generate any "lift", as lift requires that the air foil be flat on one side. Turbulence is an issue at high velocities, so if you've got a boat that you want to go 10 or 20 knots, they can be important. However, if you're more targeting 5 knots, then turbulence plays a much lower role. Of course, if you've got the ability to make the nice air foil keels that you've made, then why not? They certainly won't hurt anything. I'd like to say "Fair winds" as a salutation, but you're not on the water yet... so I'll go with "Keep your stick on the ice."
@DrBrian0450
2 жыл бұрын
Hi jason, The foils are not so much to generate lift but to reduce drag....
@churchofthegreenflipflop2436
2 жыл бұрын
Interesting video 😌
@roadboat9216
2 жыл бұрын
Very cool. Did you sell the other Wave Rover? A great boat for someone. Good luck here. I really enjoyed your adventures on the other Wave Rover. Fair winds here.
@RoversAdventure
2 жыл бұрын
Not yet!
@vannrollins9464
2 жыл бұрын
Looks like Alan has rover on hold- will he every finish?
@RoversAdventure
2 жыл бұрын
I will be resuming a regular video schedule shortly
@glynncleaver7398
2 жыл бұрын
Missing my fix
@necrokittie2291
2 жыл бұрын
holy shizz, a welder that does the math for me! i like it!
@RoversAdventure
2 жыл бұрын
Now if only they would sponsor the video.
@cerealspiller
2 жыл бұрын
A steel keel is the real deal!
@krismatski
Жыл бұрын
Hi Alan, I recently have built a 650 boat with two swing keels, made of plywood and covered with glass/epoxy. Something went wrong and one of them broke just on the edge of the keel box and the bottom. Now, I consider to make them out of steel alike the way you did. I assume the side pannels were not prebent and all curvature was put in during the welding process. What was the thicknes of the side pannels?
@RoversAdventure
Жыл бұрын
Sorry to hear that. The side plating was 1/8"
@WaterTrails
2 жыл бұрын
I don't think of keel(s) when it comes to boat building, although I chose my boat in-part because it was a part of the hull. I think it's an underestimated/under-appreciated part of ones boat. Are there off-the-shelf keels one could buy for this project, or is it necessary to build your own ?
@giork2828
2 жыл бұрын
He said he’d get down to business and he meant it
@harwagter4035
2 жыл бұрын
I would like to build the MK2 but my rudder is’nt stern hung, can I still apply the MK2?? I’m sailing a Dehler Duetta 94
@RoversAdventure
2 жыл бұрын
The MK3 will only work o a stern hung rudder sorry. I am designing the MK4 to handle other rudder systems. More on that this winter.
@harwagter4035
2 жыл бұрын
@@RoversAdventure I’m really enjoying your video’s! Thanks for posting them!
@TheHellishFrog
2 жыл бұрын
What's the thickness of the keel's metal plates? The keels appear to be much stronger than the hull itself - it may result in hull damage - if the loaded boat hits the ground with the keel.
@willymueller3278
2 жыл бұрын
Right !
@xschipper
2 жыл бұрын
very nice! one question though: the thickness of the plate that will be bolted against the hull and the keel bolts diameter, both seem thin to me? Although, comparing them to the 22 and 25 ft boats I sail(ed). How did you arrive at those dimensions.
@willymueller3278
2 жыл бұрын
I was thinking the same thing ! Those plates are too thin, and not wide enough. They have to be able to withstand a enormous strain, which should be distributed evenly to the hull, which is very thin, too.
@stefanshelenko4487
2 жыл бұрын
Complex curves are always problematic. Would not a thinner plate make the curve forming easier?. You may need another vertical former to fair the curve. But it's mass should work out. Wider hull bolting plates are not a failure.
@RoversAdventure
2 жыл бұрын
Bending the plate wasn't really that hard once we figured it out.
@davidprentice5442
2 жыл бұрын
Mounting plate too small?
@gregoryh4601
2 жыл бұрын
Hi Alan. A few things Can you look at Ocean Capable Small Sailboat and give him a look at ? Awesome can you Help Him on the Twin Keels you design. There a lot Of People saying his Fiberglass work is Bad. Thanks Alan.
@dougconyers9659
2 жыл бұрын
I'm curious about what happens when a mild steel keel is filled with lead. Won't electrolysis be a problem?
@DrBrian0450
2 жыл бұрын
Brian here....no, the keel will be sealed so no air will get in...I have been thinking about mentioning to Alan to maybe pour some old engine oil on top before we weld it up....
@RoversAdventure
2 жыл бұрын
@@DrBrian0450 Good idea Brian. I've seen that done with steel pipe rub rails on commercial boats
@tomwaite4594
2 жыл бұрын
@@RoversAdventure check out a product called Flow Coat for this application...
@RoversAdventure
2 жыл бұрын
@@tomwaite4594 Thanks Tom
@bumblebeervparkandcampgrou1883
2 жыл бұрын
Coal tar is the method. It fills the spaces and seals the interior of the keel plate.
@willymueller3278
2 жыл бұрын
Those bilge keels look pretty good, but why did you need a computerprogram to design them ? On the other hand, why are the flanges which bolt onto the hull and have to support all this weight, so narrow ? They are only bolted to the thin plywood hull, and the three wooden crossbeams behind it. If you hit, say a container at sea, those bige keels will break right off, together with a big chunk of the hull itself.
@prof.heinous191
2 жыл бұрын
Hi Alan, a couple of questions here! I didn't get the 3/16 rocker business. Is the leading edge a "cheat" onto a circular pipe, and not a perfect Naca12? Thanks!
@RoversAdventure
2 жыл бұрын
The 3/16" rocker refers to the curve on the bottom of the boat over the length of the Keel. The hull isn't flat where the Keels attach.
@prof.heinous191
2 жыл бұрын
@@RoversAdventure Thanks for the swift reply, that makes perfect sense, do I take it the leading edge is pretty much semi-circular?
@RoversAdventure
2 жыл бұрын
@@prof.heinous191 quite right, it's semi circular. And thank you for being a regular supporter of the channel Professor
@willymueller3278
2 жыл бұрын
What happened ? Tired of making videos ? My suggestion : Build a solid steel boat around your bilge keels, and you are on the safe side. Dont forget, if any water gets into that plywoodhull, it will loose all of its strenght, and there is plenty of water on the ocean. 😂
@RoversAdventure
2 жыл бұрын
Just a short break Willy. Another video will be out shortly
@willymueller3278
2 жыл бұрын
@@RoversAdventure All right, I am really looking forward to that !
Пікірлер: 53