dcnblues

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About dcnblues

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  • Location
    SF bay area
  • Interests
    Cats (Gunboat), tri's (Rapido 50)

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  1. dcnblues

    Gunboat 68

    But I'm the one pissing in the pool.
  2. dcnblues

    Gunboat 68

    Thank you.
  3. dcnblues

    Gunboat 68

    Yeah, but are they worth a damm, which is what I asked, or are you just attacking me again? Oh wait, I keep forgetting I'm the one who's pissing in the pool.
  4. dcnblues

    Gunboat 68

    Umm, is it a sex toy?
  5. dcnblues

    Gunboat 68

    Oh yeah, and what is the state of fueling a boat these days? I always imagined a system where one could strain the diesel coming from the pump BEFORE it got into one's tanks. That would be a great help, but not practical as any effective strainers would slow down the fueling too much. Any new products that can do anything similar? Polishing the fuel while pumping? I'm guessing no...
  6. dcnblues

    Gunboat 68

    Let's review: -Gunboat actively solicits feedback, likes suggestions and reads the ideas and comments in this topic on this forum. -Gunboat offers rotating masts and will include a boom furler on owner's request (probably sooner than later). And I was criticized and personally attacked for raising the topic, more than once. -Gunboat offers a 400+ lb remote controlled, programmable, self-powered and customized propeller in a dedicated hull compartment in the front of the left hull on GB68. And I was criticized and personally attacked for speculating about future designs doing much the same for regen. -Gunboats come pre-designed to accommodate a Czone system. -A small group on this topic who can't refute much of anything intelligently and so have to resort to personal attacks don't understand the literal definition of robot ("A robot is a machine—especially one programmable by a computer— capable of carrying out a complex series of actions automatically.") Let's call them 'the 3rd grade brigade.' And let's refer them to Ray Bradbury from 1950: There Will Come Soft Rains where indeed, a remote controlled garage opener would be robotic... -Gunboat currently offers a remote to control both mainsheet and traveller. Yeah, that's some classic salty greybeard sailing, right... -There is an acronym the 3rd grade brigade probably isn't familiar with: IOT. They should check it out. I'm not sure which hull number of GB68 will have an owner who can tap his smartwatch, and have the autopilot activate, head the boat into the wind, and hold it there, but it won't be long. CZone can probably already do that on hulls 01 and 02 from a wireless pad. Making the GB68 really one big robot either already, or in the very near future. -Not sure I remember this right, but I think the inefficiencies in asking a propeller design to work effectively in both forward and reverse made the first generation of props on Torquedo's Moonwave Gunboat testbed a rotating pod drive (blades could be designed for one direction only). They seem to have given that up, but Volvo Penta now has a two axis forward facing drive with adjustable angle of thrust, and a successful line of pod drives, so incorporating one more break in the drivetrain to retract the blades and change them out doesn't seem impossible (just heavy, but again, the bow thruster is 400+lbs and the Volvo systems are designed for power boats, so the weight could probably come down). I talked with Stan Honey and Chris Anderson about marine applications / startups after a presentation they gave and it was interesting. One of the strong points they made was that most civilians weren't at all familiar with the tech breakthrough that made cell phones as potent as they are, and it's dirt cheap yet effective sensors. You can load tiny sensitive cheap sensors anywhere and send data to a controller for diagnoses / control functions. Combine this with cheap customer designed motherboards, and open source software, and you get the world we live in where kids are designing and programming their own drones not to fly remotely, but to fly in competitions where they have to take off, navigate a course, return and land autonomously. Yeah, marine environments are harsh, salt water is corrosive, vibrations are a killer, but my money is on innovation to win in the long run. A green gunboat is coming, and it's going to be a big robot. I'm not evangelical about this, just realistic. I personally wouldn't want anything on board that didn't have a manual backup, which is one reason I'm still on the fence re Czone. (The third grade brigade probably has zero conception of Czone capabilities, now or in the future, and will respond with another fleshlight video or attack from a dummy account [from 'jedi,' who has 1 post. Really?]. And I'm the one pissing in the pool?) What about it, Greenflash? Czone probably has one master controller. What happens on a 68 should it conk out? I'd love to know more about the setup. A MUCH better criticism of future robotic tech that will inevitably find its way on to future Gunboats can be found in this tweet I saw just yesterday: Hard to imagine a worse job than truck "safety driver". At what point does the human become a maintenance servant to the robot(s)? Tech doesn't have a good record at promising to relieve labor but costing more human time and effort than before the innovation. Monkey can give us his perspective as he 'cares' for robots professionally. I'm a gearhead and wouldn't mind doing a good bit of my own maintenance if I owned a 68, and keeping an eye on too much computerized software integrated into hardware would have a line I wouldn't want to cross, but I have faith in remote diagnosing from error codes and sensors and even, to a greater extent than a modern car, my ability to pull a part and replace it.
  7. dcnblues

    Gunboat 68

    You don't seem to be grasping it. When you intelligently refute any single point of the dozens I've recently made, you get to give advice. When all you can do is toss out invalid ad hominem attacks like a dim 3rd grader, you're the one who looks like an idiot who should go away. So do that. Go away. Or shut your pie hole.
  8. dcnblues

    Gunboat 68

    You sure about your terms there, sparky? I don't think you are. What I do think is that you should maybe pick someone else to fuck with.
  9. dcnblues

    Gunboat 68

    Nicely said. All I wrote was offhand speculation about what FUTURE designers would come up with.
  10. dcnblues

    Gunboat 68

    Read it again, slowly. It'll hopefully come to you. And anyone who knows the first thing about props understands they are compromised, inverse-relationship nightmares. What's the rpm range of your engine? How important is low drag? Do you want the complexity of having them fold, or pitch sideways when not under power? And regen is way, way different in optimal design than forward, low rpm torque. This is why Gunboats still rely on diesel and gensets. Imagining a solution isn't delusional. It'll get here sooner or later.
  11. dcnblues

    Gunboat 68

    Does it have software that is programmable? Does it have it's own contained power supply? Does it move up and down according to that program, hydraulically? Does it provide thrust, and retract invisibly into a larger body? How the F is it not a robot arm (with a dedicated and custom designed propeller)? *Any complaints about nastiness should be directed to this guy who doesn't seem over his relationship with his former employer. I merely give what I get.
  12. dcnblues

    Gunboat 68

    Um, to quote a webpage, which I did?
  13. dcnblues

    Gunboat 68

    Thanks solosailor, good to know, and good info. Just out of curiosity, can you tell us how long it took to deploy? Not sure what you've been smoking, Timmy. Oceanvolt sells regen systems, the link and quote come from their webpage. You know what a webpage is, yes? *Ah, you may not be clear on the web forum. If you click on the quotation marks on the tool bar available during a post, you can create your own quote, paste your own text, and even include your own link (the chain icon) to the source, which is what I did. It's a handy tool.
  14. dcnblues

    Gunboat 68

    Dude, the blue part is a link. You click on it. Further instruction available as needed.
  15. dcnblues

    Gunboat 68

    I confess I forgot about the capabilities of a universal joint (decoupling a strait shaft), and feel dumb. There have to be reasons such a system isn't more widespread though. -At higher rpms, and at higher torque loads, would it be more susceptible to destructive harmonic wobble (or whatever the engineering term would be)? -I'm thinking the cassette system such a prop and shaft would retract into could use a design overhaul just as we're seeing with daggerboards. Tighter tolerances and newer materials (Vesconite, etc)? -I'm guessing that when recessed, such a system could have almost no additional drag because of CAD / CAM tweaking of the molds / turbulence lips, but someone correct me if that's off. -Or, and I like this better, apply the joint to a saildrive and let the 90 degree gear retract into a dedicated bay. Easier to have dedicated braces, for one thing. Once you're in / retracted, you build a box that can switch out props as needed. Auto assembly robot geeks could sketch out a rough design during lunch. With enough investment (and I'm not suggesting it's economically feasible but such things are rapidly dropping in price, like by orders of magnitude every decade), it's doable. -Yeah, it's the opposite of simple/reliable, but it's not impossible. *And I can't see any objection to such a proposal from anyone who defends the kludgy bow thruster robot.