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Old 04-11-2012, 20:42   #1
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Mechanical Knotmeter ID

What is the brand name of this old knot meter.
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Old 04-11-2012, 21:40   #2
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Re: Mechanical Knotmeter ID

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Originally Posted by edelweiss View Post
What is the brand name of this old knot meter.
Is this a joke or a test??

I would think someone may guess the right answer, but the best bet is to remove it, and try to find some part numbers on it.

Sorry, but asking from a picture is probably not going to get you the answer you want.

James L
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Old 04-11-2012, 23:05   #3
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Re: Mechanical Knotmeter ID

Looks like a VDO Sumlog.
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Old 04-11-2012, 23:26   #4
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Re: Mechanical Knotmeter ID

Thanks. I was trying to be concise and save electrons.
This is a picture of mechanical knotmeter on a boat I am working on. There is no paperwork nor identifying marks that I have for it. The sailboat was built in the 60s so it is probably no older than that. It has a gauge on it inside the that does not require electricity ie it is mechanical. Since it is so old, I fear that there may be few "living'" sailors that have first hand experience with it. Not a test or joke. Perhaps someone with a knowledge of older gadgets might recognize it and help me with the name of the model and even better pass on some first hand experience using it.
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Old 04-11-2012, 23:31   #5
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Re: Mechanical Knotmeter ID

Thanks Hopcar appreciate the lead!!! I checked out website and got a lot of information about it. Thanks again
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Old 05-11-2012, 06:22   #6
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Re: Mechanical Knotmeter ID

See, yet again, I have been proved wrong.

It is great to see the amount of knowledge here.

James L
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Old 05-11-2012, 08:58   #7
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Re: Mechanical Knotmeter ID

"Since it is so old, I fear that there may be few "living'" sailors that have first hand experience with it."
James, I recognized it because I'm very old and should be dead by now. That young whipper snapper edelweiss should have more respect for his elders. I have it in mind to thrash him with my cane, if only I could find where I left my teeth.

I'm old enough to remember selling Walker Taff Rail Logs. In fact I have a brand new one sitting in my office. It's right next to the six volt Sutton Bilge Pump.

That VDO Sumlog was a miserable contraption. The cables broke often and that little propeller thing got knocked off by every passing clump of sea weed. I'm surprised to see one intact. If fact I think I've got a brand new gauge to go with it. The hard thing to find would be the cable but you might be able to use a mechanical tachometer cable.
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Old 05-11-2012, 09:19   #8
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Re: Mechanical Knotmeter ID

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"Since it is so old, I fear that there may be few "living'" sailors that have first hand experience with it."
James, I recognized it because I'm very old and should be dead by now. That young whipper snapper edelweiss should have more respect for his elders. I have it in mind to thrash him with my cane, if only I could find where I left my teeth.

I'm old enough to remember selling Walker Taff Rail Logs. In fact I have a brand new one sitting in my office. It's right next to the six volt Sutton Bilge Pump.

That VDO Sumlog was a miserable contraption. The cables broke often and that little propeller thing got knocked off by every passing clump of sea weed. I'm surprised to see one intact. If fact I think I've got a brand new gauge to go with it. The hard thing to find would be the cable but you might be able to use a mechanical tachometer cable.
Wow.......quite funny.

It's nice to see some of the "saltier" people participate in the forums. Not everything new is better, but in the case of the VDO Sumlog, there are probably plenty of things which work better. Maybe a rope with knots??

James L
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Old 05-11-2012, 09:31   #9
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Re: Mechanical Knotmeter ID

Quote:
Originally Posted by HopCar View Post
"Since it is so old, I fear that there may be few "living'" sailors that have first hand experience with it."
James, I recognized it because I'm very old and should be dead by now. That young whipper snapper edelweiss should have more respect for his elders. I have it in mind to thrash him with my cane, if only I could find where I left my teeth.

I'm old enough to remember selling Walker Taff Rail Logs. In fact I have a brand new one sitting in my office. It's right next to the six volt Sutton Bilge Pump.

That VDO Sumlog was a miserable contraption. The cables broke often and that little propeller thing got knocked off by every passing clump of sea weed. I'm surprised to see one intact. If fact I think I've got a brand new gauge to go with it. The hard thing to find would be the cable but you might be able to use a mechanical tachometer cable.
you're not still using your Walker log? Smoked shark is great!
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Old 05-11-2012, 09:33   #10
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Re: Mechanical Knotmeter ID

Quote:
Originally Posted by HopCar View Post
"Since it is so old, I fear that there may be few "living'" sailors that have first hand experience with it."
James, I recognized it because I'm very old and should be dead by now. That young whipper snapper edelweiss should have more respect for his elders. I have it in mind to thrash him with my cane, if only I could find where I left my teeth.

I'm old enough to remember selling Walker Taff Rail Logs. In fact I have a brand new one sitting in my office. It's right next to the six volt Sutton Bilge Pump.

That VDO Sumlog was a miserable contraption. The cables broke often and that little propeller thing got knocked off by every passing clump of sea weed. I'm surprised to see one intact. If fact I think I've got a brand new gauge to go with it. The hard thing to find would be the cable but you might be able to use a mechanical tachometer cable.
If I recall correctly, they used the same cable that is used on a lot of bicycle speedo's. One might be able to adapt one of those, if necessary.

FWIW...
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Old 05-11-2012, 11:58   #11
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Re: Mechanical Knotmeter ID

Cheechako, I would never kill a shark, I made too much money selling replacement Walker spinners. Love those sharks.
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Old 06-11-2012, 03:29   #12
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Re: Mechanical Knotmeter ID

Ouch I feel cane wacked. I meant no offense by my old gear qualification. I probably should have stuck to my original low electron usage style question. Thanks again for the info. I have tried to look some of these things up but it seems the more stuff on the internet the harder it is to find things.
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Old 06-11-2012, 03:32   #13
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Re: Mechanical Knotmeter ID

I actually have a sextant, Walker log, barometer and chronometer with the paper charts. I got the walker log because it just looked cool
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Old 06-11-2012, 14:53   #14
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Re: Mechanical Knotmeter ID

Good to hear there are still Walker Logs out there. Lost one to a shark. It tore the whole unit off my taffrail. Certainly was a loud bang that I couldn't figure out until daybreak.
They are really very accurate.
kind regards,
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Old 06-11-2012, 16:28   #15
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Re: Mechanical Knotmeter ID

I had a log like that in the 70s. I dont recall the name ,but I bought it from England. If I remember correctly the cable was SS or maybe bronze. It lasted about 600 miles before it packed up. Not worth a Damn!____Grant.
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