Mac 26S replacement mast too heavy?
- Thread starter Mickyfin
- Start date
Uh, no, that would cause them to flip over.
[Edited to add: Perhaps more importantly, the C of B also moves upward as the boat heels, going even further above the C of M, and that's actually the condition that most relevant when talking about mass aloft.]
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Not how it works. Cb is always below the waterline. How many boat have the cg well below the waterline?
Righting moment (positive or negative) comes from the horizontal distance between cg and cb. What are you calling "upward?" When the boat heels the cb moves in the horizontal direction of heel. As long as it moves past the offset from cg it'll try to right the boat.
I suspect you're thinking of metacenter, which is higher and describes how cb moves with angle of heel.
That deck plate was stock on 92' and 93' so sayeth BWY.
Judging by your photo of the mast and deck plate it appears to have been used on that boat plenty. Did the PO say how long he used it that way?
I would suggest pulling the ballast tank valve and inspecting it for porosity corrosion especially where it's welded to the base plate. If it was kept in the water the suggested cup of bleach and salt water are bad news for stainless over time.
I've used petroleum jelly as a seal lube and also for the upper hardware to prevent binding and giving a false sense of being tight .
Judging by your photo of the mast and deck plate it appears to have been used on that boat plenty. Did the PO say how long he used it that way?
I would suggest pulling the ballast tank valve and inspecting it for porosity corrosion especially where it's welded to the base plate. If it was kept in the water the suggested cup of bleach and salt water are bad news for stainless over time.
I've used petroleum jelly as a seal lube and also for the upper hardware to prevent binding and giving a false sense of being tight .
I didn't get to talk to the PO for as long as I would have liked to, and didn't think to ask him how long the replacement mast had been on the boat or how it effected handling. I didn't fully comprehend all the possible ramifications of a "new mast" at that point.
Eclectic thanks for the pointer on the ballast valve. I got the boat from the original owner, who was a freshwater sailer, with the exception of a couple trips to the Keys. Boat has always been kept on the trailer, no bottom paint.
Eclectic thanks for the pointer on the ballast valve. I got the boat from the original owner, who was a freshwater sailer, with the exception of a couple trips to the Keys. Boat has always been kept on the trailer, no bottom paint.