Dear colleagues,
does anybody use the eye casted in the cast iron ballast block to lift the boat? I mean the eye located below the floor in the cabin. I have tried, but it has shown that it is located more backwards than the center of mass. Moreover, it seams to be below the center of mass, so the boat is instable when lifted using it. Is the eye intended for lifting the boat, or was it intended for lifting of the cast iron block during manufacturing only?
Thank you
David Kubal
lifting IF boat
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- maja
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Re: lifting IF boat
You may use the eye moulded into the iron ballast, but you have to balance the boat as shown on the pictures.
See some alternatives below how a device for lifting may be designed. It is strongly recommended to mount additional eye-bolts for lifting and not use the chainplate bolts. It is also preferable for the lifting that the device is vertically as long as possible for the the lifting point of the crane to reach the vertical line through the centre of gravity without trimming the boat forward.
See some alternatives below how a device for lifting may be designed. It is strongly recommended to mount additional eye-bolts for lifting and not use the chainplate bolts. It is also preferable for the lifting that the device is vertically as long as possible for the the lifting point of the crane to reach the vertical line through the centre of gravity without trimming the boat forward.
Marek, IF-båt SWE-829 "Ingela" från Lagunen i Malmö
Medlem i IF-båtförbundet sedan 1985
IF-båtägare sedan 1983
Medlem i IF-båtförbundet sedan 1985
IF-båtägare sedan 1983
Re: lifting IF boat
Dear Marek,
thank you, this is a great idea. I will try it the next year. The only think I do not understand fully is why the additional eye-bolts for lifting should be mounted. Until now I have been thinking that the chainplate eye-bolts for main sidestays (shrouds) are the strongest points in this part of the deck. So what is the reason? (Excuse me please, I do not understand the description in the article since it is in Swedish.)
David
thank you, this is a great idea. I will try it the next year. The only think I do not understand fully is why the additional eye-bolts for lifting should be mounted. Until now I have been thinking that the chainplate eye-bolts for main sidestays (shrouds) are the strongest points in this part of the deck. So what is the reason? (Excuse me please, I do not understand the description in the article since it is in Swedish.)
David
- johan swe-1870
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Re: lifting IF boat
I think the reason for using separate lifting eye bolts is to not stress those to the rig. You can also lift the boat with the rig still on, if you want (I don't).
I lift my boat with the rig chainplate eye bolts.
I lift my boat with the rig chainplate eye bolts.
Johan Winberg, SWE 1870 InFinit
Re: lifting IF boat
Hello, I am picking up on an old discussion and interesting discussion. Does anyone have a clearer version of this picture that could be read by OCR or anyone with an english translation. Many thanks to all. R
- maja
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Re: lifting IF boat
This article is to be found in Medvind Hösten (No 2) 1989, on page 27
>> http://ifboat.se/medvind?view=simplefilemanager&id=132
I will send you 2 pdf-files which are OCR readable. In the pdf-document, "mark all" and copy to Word or to Notebook.
I have made the OCR readings for you and they will also be sent as text files.
Now, use a web-based translator as Google Translate or similar to translate the Swedish texts into any language you want.
>> http://ifboat.se/medvind?view=simplefilemanager&id=132
I will send you 2 pdf-files which are OCR readable. In the pdf-document, "mark all" and copy to Word or to Notebook.
I have made the OCR readings for you and they will also be sent as text files.
Now, use a web-based translator as Google Translate or similar to translate the Swedish texts into any language you want.
Marek, IF-båt SWE-829 "Ingela" från Lagunen i Malmö
Medlem i IF-båtförbundet sedan 1985
IF-båtägare sedan 1983
Medlem i IF-båtförbundet sedan 1985
IF-båtägare sedan 1983