allweather

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Everything posted by allweather

  1. allweather

    ePropulsion Pod Drive

    Nice. Sounds like you'll have it ready and tested for the coming season. Going to look forward to your experience with it. Especially compared to your previous outboard!
  2. allweather

    ePropulsion Pod Drive

    Have to remembter that often enough old folks are the final decision makers as they are the boss. And sentimentality can delay modernization like that quite a bit. Always remember an article I read somewhere on how engineers in the nineties proposed getting rid of car mirrors and use tiny cameras instead. Which would have done A LOT for fuel efficiency. But according to leadership it didn't look right. Which brings me to getting rid of the steering wheel now that everything is electrically linked anyway. We may just jump right past that with the advent of self driving cars. Though otherwise we can look at the military using gamepads and have our answer there. The younger generation already knows how to use them and will likely not bat an eye if anyone tried to replace the steering wheel. Though last thing I knew it was a regulatory issue since some apertures have to be in a car to make it legal. Like side mirrors but that is about to change somewhere in the near future. But then the lucrative yacht market isn't exactly found with twenty something olds. Yachts may lag on account of that. Enough of my digression. When do you think you'll get it installed, Bull?
  3. allweather

    Don't be a diesel mechanics, be a sailor...

    I didn't expect that. Have virtually no experience cooking with an induction cooking plate. At least when it comes to measuring how much watthours it actually takes for a simple meal and highballed it. Apparently wrongly so. Have you measured what you need for an average meal?(I do have a plate for the office. Time to track my power use next time)
  4. allweather

    Don't be a diesel mechanics, be a sailor...

    There are (successful) projects to do just that too. So it is not all bad. For example Hamburg produces megwatthours of biogas over the year from wastewater treatment. That is pretty great and I hope it the technology spreads quickly. Literally turning crap to power... But to tie things back to the original thread topic. Using electric power to cook is probably quite a ways away yet because of how much power you need to warm food. Heating as well. One should be able to cover those with bio fuel eventually.(not clear on availability right now. Most stuff is just fossil byproducts I think?) That leaves lights, propulsion and so on for electric power. Which it can cover well nowadays outside of long range motoring.(30+ miles) Though I really would like to see more production boats with retractable motors(easier with electrics due to size). And wonder if it really is so much more complex to go for the efficiency of two motors for a counter rotating prop setup?
  5. allweather

    Don't be a diesel mechanics, be a sailor...

    I had not noticed that yet? I know Germany is still exporting food crops and some hailed turning over production to fuel as a... reasonable transition measure. Plus how to pay subventions to the agrar industry and actually get something out of it. (some have also talked about how instead of feeding cows and pigs for meat production that is problematic for the environment as well we may as well turn it to fuel that is somewhat more neutral) Have food prices increased with the appearance of bio fuel or is it just correlation, not causation? I know here some is down to increased regulation in general and the fact that markets were in the dumps beforehand.(unprofitable crop prices) Ah, just read up on it. The imports of bio fuel make it more profitable to sell crops to make it instead of using them to feed populations in developing/poor nations. Fuck. And european interest means that any ideas on tariffs to make imports less viable is probably not happening without massive puplic pressure.
  6. allweather

    Tethers - Quick Release or Not?

    Thanks for that link. Was a very educating read on real world scenarios and what worked or didn't.(case 81 in particualr was well illustrated. Did you write it?) Found it suprising how many dragged along drownings there were reported. Even if the number is not the majority, more cases than I expected. (though I bet some bias for the people reporting such things also being sailors that actually use tethers as opposed to some of the rent a boat casualties) What stuck out to me in those case was that often the remaining people on board did not know what to do and kept the boat on its stable course which ended with the person in the water drowning or letting go of the boat to avoid immediate death. I am going to emphasize for everyone the priority to stop the boat as a conclusion from that. One thing to be aware of having to stay close or risk losing them and how some standard MOB maneuvers as taught(at least years ago. Probably not anymore) get way more distance between you and the victim through things like orderly dousing of the sails. And this is good impetus to change my autopilot on a boat I singlehand often. Already have jacklines that keep me within grabbing distance of the hull(well, mostly) and a transom ladder/outboard rail to get on.(transom is a bit chancey in waves but no idea how to do it better) Convinced me to spend the money now on an autopilot that will round up the boat on its own.
  7. allweather

    Tethers - Quick Release or Not?

    For curiousity's sake, does anyone have a statistic/study on sailors dead to losing contact with the boat(tether failure, quick release or just not picked in) versus guys killed by getting dragged along? From a gut feeling I would always say that the former are in the majority. But that is nothing to rely on. As for stopping the boat under spinnaker. Luckily I have yet never needed to and would not like my takedown time on all but the smallest boats.(especially without preparation. Like clearing the halyard beforehand) But that also means I can't quite picture the practicality. Would crash gybing be a viable option to slow the boat sufficiently to allow for retrieval? A boat on its side and likely destroying the spinnaker still drifts quite fast, but at the same time the windward side is fairly high up and should create breathing room? Once saw a yachting world video on dropping the spinnaker away(into the water via blowing everything) and heading into the wind. Expensive, but made sense to me compared to trying to find someone fast enough after becoming disconnected from the boat.
  8. allweather

    ePropulsion Pod Drive

    The top mount certainly has something going for simplicity. Where would you think of mounting the other two units if you opted for a seperate screen and side mount? About the old school control it is good to remember that they just look like that due to the need of (mechanical?) linkage? With electrics a tiny knob is all that you need. Afterall every cargo ship or plane runs by wire. Tiny joystick in any case. There really is no practical need for a big lever to stick around in the cockpit so that you can hit your knees on it. Question then is how much you care about the more traditional appearance of the engine control?
  9. allweather

    ePropulsion Pod Drive

    Oh that cutout is significantly larger than on my boat where there is space behind the wall still.(shelf is probably the same size overall) How about mounting both the throttle and the screen on a board that can swivel back to one side of the shelf? That way youd don't lose all of the space and the parts can be out of the way, as well as rain, when you don't need them? Kind of like how some boats have a swivel mount for the plotter/radio/instruments in the companionway.
  10. allweather

    ePropulsion Pod Drive

    Inatallation I've seen once somewhere. Do you have an opening/shelf at the tiller?
  11. allweather

    Don't be a diesel mechanics, be a sailor...

    You're right. Forgot that bit of the video where he aknowledges those limitations. I was more thinking of the likes as Torqeedo with their... questionable equivalency statements. At least poor demonstration for what it can do. Probably brakes every marketing rule but personally I'd just strap the standard outboard to a typical 8m boat and show it motor into port in 4-5bft. Instant establishing of its capability.
  12. allweather

    Don't be a diesel mechanics, be a sailor...

    Whenever I see someone motoring directly into 5bft wind and a meter or so waves I can't help but shake my head. Then again I don't want to tell others how to enjoy their time and make presumptions. I just can't figure out why one would do this. Even the issue of tacking up a relatively narrow passage is not all that problematic today with self tacking jibs.(not necessarily pretty, but you can install one on just about any ship if you require the comfort) Still, if electric motor companies stopped trying to sell them as diesel replacements I believe adaptation would have gone much better. Because electrics aren't diesels. For the foreseeable future it will be less range and overall shaft power/speed. But that is no problem for a lot of people. Once you stop disappointing people about "Diesel replacements" and give some good data I think they'd find there are quite a number of people that are okay with those specs. Just state how you have less range and top speed but are geared better to low end thrust(electrics being good at that) and you have the daysailer concept covered. The insecurity about bad reviews "no range, can't motor into 7bft for an hour" led to more than one heated discussion at my club... Sorry about digressing. Is a pet peeve of mine exactly because of such discussions that more often than not tote disproven science as opposed to the simple truth that sailor A may want to go thirty miles and how that is not exactly electric prime territory. Though I am really hoping for hybrids at least in this regard. Even with transmission losses they can be designed up to 20% more efficient.(smaller motors allow different placement and hull shape for example. As well as nice things like counter rotating props more easily than with a single diesel engine) And even a motor yacht with 20% less fuel consumption? That can only be a good thing.
  13. allweather

    Don't be a diesel mechanics, be a sailor...

    Yeah, someone would need to do the math, but I also suspect electrics won‘t come out ahead in typical sailing use case unless you‘re looking at some really long term gains... repowering seems to make sense if the old engine is toast and/or the electricla system could use a rebuild anyway. Plus the far less altruistic preferences for near silent propulsion and less noisy generation. But that in of itself has little to do with the environment. SUVs are a thing that pushes my buttons... decades of aerodynamic improvements burned for... that. Sorry for digressing. What about that steel frame in the boat? I suppose it is cheaper to manufacture as a stress member. But really that much better for corrosion issues? Then again, the industry has experience in making metal last in the marine environment so it could be okay.
  14. allweather

    Don't be a diesel mechanics, be a sailor...

    These kind of studies tend to use vehicle life. Not measured in years but in kilometers driven. So technically how much you use it doesn‘t impact the calculations as you just get the same result but later if you use it less. For cars they figured out that there is a point where new becomes less environmentally costly. I don‘t know the number off of the top of my head though. We also find that modern electric vehicles(energy production included for both) use significantly, range of 50% even, less emissions per kilometer. A lot of that thanks to regeneration. I suppose it is not as neat for boat regeneration however for aforementioned issues with not dedicated hydrogenerators. I suppose if you don‘t use your engine replacing it would be a bad move. But for a new ship it is more of an implementation issue(and range for some long distance cruisers. Fuel cells of various kinds look promising for efficiency) than environmental because the production has not that bad of an impact when both come new.
  15. allweather

    Don't be a diesel mechanics, be a sailor...

    But you‘re wrong. More recent Volkswagen, for example, study put the energy/environmental cost of a car over its lifetime at around 70%. Production of the car about 6-10% I believe and the rest is basically getting the fuel to your car. The latter often happily forgotten when discussing grid losses. (Not that the calcs about solar panel costs and so on are unimportant. They are just pretty good actually once you look past how cheap oil is... when not calculating environmental damage over the long term. Besides the point)
  16. allweather

    Don't be a diesel mechanics, be a sailor...

    I did not think of that much going into it... More just on how wood can hold insects in a bad case. Not much of an issue for plastic boats but still. Whereas pellets are easy to just drop in a few more or less depending on burn time. Would sealed bags suffice for dry storage? Use them for just about anything else afterall. Took a quick look around and apparently for a more sophisticated oven, compared to the higher efficiency electric pellet ones similar to the big units in houses, the tiny house movement has made some inroads. Appears to be still quite heavy at 60 or so kgs and by design not exactly a big market either. But certainly more than boat owners.(that don't have large trawlers
  17. allweather

    Don't be a diesel mechanics, be a sailor...

    You know in time of pellets, how viable is that actually? I know some cruisers do take wooden ovens perfectly fine. But pellets is another level of convenience in storage(can fit that bag into any nook and cranny, no additional gear required) and actually firing? Plus compared to gas or diesel it is not exactly a fire hazard in any way?
  18. allweather

    ePropulsion Pod Drive

    Probably not. The motor could be run on 24V. Kind of.(wrong constructions, likely to burn out due to high current) But the electric controller will not start it. Have you considered a non torqeedo/Epropulsion battery? 48V are a bit rarer(though serial connections are supported by some 24V batteries) but do exist in various measurements that would fit the drawer.
  19. allweather

    Warnemünde, Germany typical conditions?

    Think so. Rarely went down since I was always sailing but it has some things.(relatively many students) Depends on what you want to do? Half to one hour drive into a world heritage city. That can be quite nice. Then again, I am biased. In Rostock, if the timeframe fits, there is speedsailing. Aka a half/day trip on a VO60. Not sure if you can do something like that locally or if it is worth a look. As for sailing... can have a range of conditions. Light winds in summer are often the case. But windy can happen too and then usually days of it. Waves tend to get fairly steep and big if you have wind. Then again, it is the baltic, so they aren't that big.
  20. allweather

    Don't be a diesel mechanics, be a sailor...

    One of the boats I sail on has one of these. The worse pain is actually accidentally touching the screen and messing up what is being displayed. Not catastrophic, but annoying. I suppose you get used to it.(last year was just short on opportunities) Plus half the installations I have seen have the button(right wheel) exposed that I always worry about accidentally ripping it off before breaking the screen. As for the twin electric motors. Let's do some tank turns! (I don't know the term for boats. Walking the ship?)
  21. allweather

    ePropulsion Pod Drive

    Bolting into the risers would be the easy way. But since I don't want to drill holes I'll glue some teak(delrin would be even nicer) blocks where there is now space between the hull and the box in the second picture. Just one for each corner. Then going to screw into them when the box is in place. For sliding it out I'll just have to remove those four screws. Batteries are still on order but will be around 44kg. The box is made from 8mm plywood and really quite strong, likely overengineered but I wanted to be sure with the mass involved. The storage bin still has enough space to fit with my personal arrangement since the single cells are only 175mm wide. There is just enough space behind the storage bin if you pull it out under the step from the companionway. About 240mm at max. Posting a picture in a second.
  22. allweather

    ePropulsion Pod Drive

    Not quite the same as I plan to DIY the battery from cells, but the principle works nicely and took me an afternoon to fit. (Now glueing it in addition to the screws that already hold everything solidly enough as is. Then painting and hoping using non marine ply will be sufficient. Or replace it a few years earlier in the worst case.) Still needs to be bolted to avoid accidentally sliding around, but otherwise a really nice solution.
  23. allweather

    ePropulsion Pod Drive

    That is beyond my experience in regards to disturbed flow after the keel or in front of the rudder. My feeling would always value nice steering more but no idea... Installation and access behind the keel is so much nicer however. From a rule of thumb approach I'd go with right in front of the frame below the winches.(number 3 "frame" at the keel) Not directly after the keel, still good access right besides the seacocks and you don't need to cut any large hatches for installation.
  24. allweather

    ePropulsion Pod Drive

    It should be straight forward enough. But with your level of skill in that regard getting a professional to do it for you is probably the better choice depending on what shore installation you have exactly... You should not need more than a marine grade cable run to the boat/extension cord(won't degrade too much in the weather and has no issue with even being in the water. As seen in many a marina) DIY battery is out, but the E80 and the fitting 110V charger can be bought as is. Add in a switch, cables to the motor and charger that a professional can crimp in his shop once you determined lengths, and a fuse(nobody likes electrical cable fires) sized to those cables and you should be done. Well, and checking the fuse between the outlet and the extension cord since I don't know about your shore installation. Both that there is one(likely) and that you don't accidentally blow it as your LiFePo can pull quite a bit of power.
  25. allweather

    ePropulsion Pod Drive

    You're welcome. I am not quite sure what you mean here? The standard charger for these batteries do come in 110V versions and from there it is just a simple cable run. Weight wise you're right, the drawer below the cockpit is about as close as you can get to the CoB.(about below the companionway hatch... I mean where the lift ring is on the keel is about right Going a bit further aft however is not that disastrous. From the back of the drawer to the lazaretty it is just about one meter. Cockpit locker literally just a wall. So some 30-40cm. have fun locating everything onboard.