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All knowing...
Franklin, you are so extroadinarily knowledgable of so many functions and systems related to a yacht. There are many ways a diver can indeed knock a 'mounted' transducer (many are sticking out on a mounted block, not flush against the hull) for one by using it for body weight while scrubbing hard, holding onto a bathroom plunger sucked against the hull, with leverage against the keel (knees or feet) and the all time killer, the second stage of a regulator moving with forward mometum of the diver, and behind his head has damaged many hulls, props, shafts, and well, hell a transducer, that's an easy one. I did scrub bottoms for a living, and a hard living it was too, stung, bit, and nearly electrocuted, I do not recommend it, but do my own hull still. You should always get both survey AND insurance, why? because of a case like this and them "experts" like franklin to tell you how impossible it is to happen a certain way, he didn't even need to be there -)
Franklin, you are so extroadinarily knowledgable of so many functions and systems related to a yacht. There are many ways a diver can indeed knock a 'mounted' transducer (many are sticking out on a mounted block, not flush against the hull) for one by using it for body weight while scrubbing hard, holding onto a bathroom plunger sucked against the hull, with leverage against the keel (knees or feet) and the all time killer, the second stage of a regulator moving with forward mometum of the diver, and behind his head has damaged many hulls, props, shafts, and well, hell a transducer, that's an easy one. I did scrub bottoms for a living, and a hard living it was too, stung, bit, and nearly electrocuted, I do not recommend it, but do my own hull still. You should always get both survey AND insurance, why? because of a case like this and them "experts" like franklin to tell you how impossible it is to happen a certain way, he didn't even need to be there -)
Franklin
I'll concede that maybe I over extimated the depth of the transducer on a H33. Would you agree that it's maybe 2 feet? If so, then I'll do the math again. 29.7 x diameter squared x sq root of pressure 29.7 x (2x2) x sq root of .866 (.433 psi per foot x 2) 29.7 x 4 x .93 = 110 gpm Up north here in Pennsylvania we have 60 minutes in an hour. So.... 110 gpm x 60 minutes = 6600 gallons. Oh, also each gallon of fresh water weigh 8.33 lbs. and salt water weighs 8.7 lbs per gallon. I hope you live REAL CLOSE to your boat!
I'll concede that maybe I over extimated the depth of the transducer on a H33. Would you agree that it's maybe 2 feet? If so, then I'll do the math again. 29.7 x diameter squared x sq root of pressure 29.7 x (2x2) x sq root of .866 (.433 psi per foot x 2) 29.7 x 4 x .93 = 110 gpm Up north here in Pennsylvania we have 60 minutes in an hour. So.... 110 gpm x 60 minutes = 6600 gallons. Oh, also each gallon of fresh water weigh 8.33 lbs. and salt water weighs 8.7 lbs per gallon. I hope you live REAL CLOSE to your boat!
Ummm... Mr Jack...
"the second stage of a regulator moving with forward mometum of the diver, and behind his head" That would be the FIRST stage of the regulator, the second stage is the part he/she holds in his/her mouth. Gotta love it when someone so "extroadinarily knowledgable" chides another "extroadinarily knowledgable" person, huh?
"the second stage of a regulator moving with forward mometum of the diver, and behind his head" That would be the FIRST stage of the regulator, the second stage is the part he/she holds in his/her mouth. Gotta love it when someone so "extroadinarily knowledgable" chides another "extroadinarily knowledgable" person, huh?
It seems to me that if I bumped something
with enough force to knock pieces loose I would notice. That's just me , maybe other folks are a little more rambunctious than I am. There is no doubt that a 2 inch hole will allow a lot of water through and a 2 inch pump will probably be needed to keep up. I think that if I knocked a hole in the bottom of someone's boat I would find something to stuff into that hole before I got yelled at.
with enough force to knock pieces loose I would notice. That's just me , maybe other folks are a little more rambunctious than I am. There is no doubt that a 2 inch hole will allow a lot of water through and a 2 inch pump will probably be needed to keep up. I think that if I knocked a hole in the bottom of someone's boat I would find something to stuff into that hole before I got yelled at.
Black Jack, If you can swim into
A three blade bronze prop on a 3/4 inch shaft and inflict damage and survive personally then you must be very robust. I have a transom mount transducer for all of the reasons mentioned here and that could be knocked loose. The result would be an minor inconvenience, not a sinking, which is very inconvenient.
A three blade bronze prop on a 3/4 inch shaft and inflict damage and survive personally then you must be very robust. I have a transom mount transducer for all of the reasons mentioned here and that could be knocked loose. The result would be an minor inconvenience, not a sinking, which is very inconvenient.
Mike
Where did you get your forumla? It doesn't match my test results. Richard's formula better matches my test results so I'll go with his (20 x diam x sqrt of depth). No...for real...where did you get your formula? I looked for one weeks ago but couldn't find one.
Where did you get your forumla? It doesn't match my test results. Richard's formula better matches my test results so I'll go with his (20 x diam x sqrt of depth). No...for real...where did you get your formula? I looked for one weeks ago but couldn't find one.
Franklin
Franklin, the formula is a standard fire department one.I have a link to the Houston, TX FD training division. Scroll down a little to the GPM formula. The Houston FD source is IFSTA, The International Fire Service training Association. http://www.hfd.ci.houston.tx.us/fire/firefighterinfo/ce/2000/June/June00CE.htm
Franklin, the formula is a standard fire department one.I have a link to the Houston, TX FD training division. Scroll down a little to the GPM formula. The Houston FD source is IFSTA, The International Fire Service training Association. http://www.hfd.ci.houston.tx.us/fire/firefighterinfo/ce/2000/June/June00CE.htm
Hey Neil...
I see your thread got hijacked. Have you made any decission as to what you will do? It is a shame your boat sank, I remember reading about it here. I guess the key is the cost of repairs vs. the cost of selling and getting a new boat. Whenever I need to repair something I look at the 50% rule. If the cost will exceed more than the 50% of the original cost, then I will not do the repair. Good luck and I hope whatever decission you make it is the one that you can live with.
I see your thread got hijacked. Have you made any decission as to what you will do? It is a shame your boat sank, I remember reading about it here. I guess the key is the cost of repairs vs. the cost of selling and getting a new boat. Whenever I need to repair something I look at the 50% rule. If the cost will exceed more than the 50% of the original cost, then I will not do the repair. Good luck and I hope whatever decission you make it is the one that you can live with.
Brain
Say he spent 10gs (just a number) for the boat. Say repairs would cost 8gs. If he repaired it, in this case, almost everything would be brand new afterwards for less then he would get another used boat with all old stuff. I would go with the rebuild. The great thing about a rebuild is, if you do it yourself, you know how everything works and you make sure that all the materials are good quality materials that will last a very very long time. After a good rebuild, the boat should be solid for years without needing any replacing. If you buy a used boat, it could be just another few months before something breaks and needs replacing. Now if the cost of a rebuld greatly exceeds the price of the used boat, then I would think about just getting a new one and selling this one. But that's me...I like to fix stuff. It keeps me busy and my mind off women
Say he spent 10gs (just a number) for the boat. Say repairs would cost 8gs. If he repaired it, in this case, almost everything would be brand new afterwards for less then he would get another used boat with all old stuff. I would go with the rebuild. The great thing about a rebuild is, if you do it yourself, you know how everything works and you make sure that all the materials are good quality materials that will last a very very long time. After a good rebuild, the boat should be solid for years without needing any replacing. If you buy a used boat, it could be just another few months before something breaks and needs replacing. Now if the cost of a rebuld greatly exceeds the price of the used boat, then I would think about just getting a new one and selling this one. But that's me...I like to fix stuff. It keeps me busy and my mind off women
An 8000 dollar rebuild would give you
an essentially brand new boat. How much is the boat worth on the market in its present condition? Where could you find a boat with all new bits and pieces for 8000 dollars? People are always willing to look for an excuse to make a change but if you liked what you had before it sank, most of the expense that you put in for a rebuild would probably have been spent during the next five years anyway.
an essentially brand new boat. How much is the boat worth on the market in its present condition? Where could you find a boat with all new bits and pieces for 8000 dollars? People are always willing to look for an excuse to make a change but if you liked what you had before it sank, most of the expense that you put in for a rebuild would probably have been spent during the next five years anyway.
Good points on the rebuild...
But Neil's heart might not be into a rebuild. Granted that over time, that money may have been used to *enhance* what he had prior to the sinking. I don't know. I do know that I, like many, have put lots of dollars into my *hole in the water*. For me, if it was my *new to me* boat, I would be depressed as all get out and probably would not rebuild. Plus, I am not that good in that arena. But there are people out there that love this kind of challenge. I bought my present boat to enjoy it on the water, not rebuild it.
But Neil's heart might not be into a rebuild. Granted that over time, that money may have been used to *enhance* what he had prior to the sinking. I don't know. I do know that I, like many, have put lots of dollars into my *hole in the water*.
For me, if it was my *new to me* boat, I would be depressed as all get out and probably would not rebuild. Plus, I am not that good in that arena. But there are people out there that love this kind of challenge. I bought my present boat to enjoy it on the water, not rebuild it.OP - Thanks for the input(s)
Well, this will surprise most of you. I bought the 1978 Hunter Cherbuini for 5G. Yep, 5 grand. She was in fair condition, but a solid cleaning and TLC. I came across the boat (and deal) by chance while I was deep in my sailboat hunt, and bought it immediatlely. No survey or any of the typical steps. It was slipped in a municipal marina (100++ waiting list) so I was 'under the radar) for the first few weeks getting all my ducks in a row (registration, insurance, safety). The story from there is history - call a contractor, he pushes in the transducer and down she goes. Franklin, I agree...I'm on the road to a total overhaul. Even if I put 10g into her, I'm at a total cost of ownership of 15 for a sweeeeet ride. Long road - lawsuit ongoing - I appreciate any tips, tricks, and/or free stuff! lol fair winds, Neil
Well, this will surprise most of you. I bought the 1978 Hunter Cherbuini for 5G. Yep, 5 grand. She was in fair condition, but a solid cleaning and TLC. I came across the boat (and deal) by chance while I was deep in my sailboat hunt, and bought it immediatlely. No survey or any of the typical steps. It was slipped in a municipal marina (100++ waiting list) so I was 'under the radar) for the first few weeks getting all my ducks in a row (registration, insurance, safety). The story from there is history - call a contractor, he pushes in the transducer and down she goes. Franklin, I agree...I'm on the road to a total overhaul. Even if I put 10g into her, I'm at a total cost of ownership of 15 for a sweeeeet ride. Long road - lawsuit ongoing - I appreciate any tips, tricks, and/or free stuff! lol fair winds, Neil
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