MacGregorSailors.com

I thought I heard (here) that it was 110 deg., but I don't know that for fact. With such a tall cabin, I wouldn't be surprised if it's actually higher, though that high CG counterbalances that possibility.

I don't see how a ballasted Mac could stay over. The M even has 300 lbs of resin in the center. The boat might go over, but it certainly would pop back up soon after. It's an amazingly safe design. Just look at the companionway, it won't allow water to enter if the boat is on its side (see the factory video). In fact, the factory video shows it pulled all the way down and it pops right back up.

I hear plenty of talk about flotation and an unsinkable boat, however I've NEVER heard of one of these capsizing to the point of needing flotation. Pretty hard to put a hole in one. You'd have to hit something just right that the boat wouldn't bounce off. Not like keelboats that hit and tear off the keel.

yukonbob wrote:I've been on the lookout for one that goes past 50...should read 'whoaa!!" 30-40 color coded red / "WTF" 45-50 color coded yellow and Holy Sh*t!!!" for 55 + color coded brown

Ray

Glad someone picked up on that

RussMT wrote:I don't see how a ballasted Mac could stay over.

I do, these boat are light, fill the sails with water and it ain't coming back even with the resin and sand ballast. From memory in the factory video 20 pounds pressure on the top of the mast was enough to hold the over at 90 degrees. Through in some wave motion and a flooded cabin and it will probably turn turtle. Mind getting an to that point would take some whole lot of stupid or bad luck...

The rounds up easily and bobs around like a cork so it would take a far bit to fully lay one over on it's side. But if you did manage it there is no guarantee it would come straight back up.

kadet wrote:

RussMT wrote:I don't see how a ballasted Mac could stay over.

From memory in the factory video 20 pounds pressure on the top of the mast was enough to hold the over at 90 degrees.

Missing a zero there

yukonbob wrote:

kadet wrote:

RussMT wrote:I don't see how a ballasted Mac could stay over.

From memory in the factory video 20 pounds pressure on the top of the mast was enough to hold the over at 90 degrees.

Missing a zero there

So: 900 degrees - a 2 1/2 x barrel roll!

59kg then

90.0 deg???
or
090 deg?????

180 lbs (200 lbs) to keep the mast down is what I thought it was but re-thinking it might be 120 or as Kadet says 59 Kg (130 lbs) There no way you'd keep the mast down with 20lbs, a small breeze would lay you flat on the water

yukonbob wrote:180 lbs (200 lbs) to keep the mast down is what I thought it was but re-thinking it might be 120 or as Kadet says 59 Kg (130 lbs) There no way you'd keep the mast down with 20lbs, a small breeze would lay you flat on the water

I re-watched the video it said 130lbs which is where I got the 59kg from, I just have a bad memory

The point I was trying to make is a sail in the water will hold way more weight than that and could potentially hold the boat over. Especially if the waves are coming from the beam. Wind alone normally will not capsize a boat you need waves as well.

kadet wrote:

yukonbob wrote:180 lbs (200 lbs) to keep the mast down is what I thought it was but re-thinking it might be 120 or as Kadet says 59 Kg (130 lbs) There no way you'd keep the mast down with 20lbs, a small breeze would lay you flat on the water

I re-watched the video it said 130lbs which is where I got the 59kg from, I just have a bad memory

The point I was trying to make is a sail in the water will hold way more weight than that and could potentially hold the boat over. Especially if the waves are coming from the beam. Wind alone normally will not capsize a boat you need waves as well.

Absolutely. Any willing to test the limits on this one? Maybe someone with water a little warmer?

Absolutely. Any willing to test the limits on this one? Maybe someone with water a little warmer?


Not going to test this in the waters I boat. 48 to 52 degrees average year round temps, not conducive

to wanting to swim in the water. More conducive to wanting to walk on the water...

It's 135 lbs. on an empty 26M to hold the mast down at the dock at 90 degrees.

110 degrees is the point of vanishing stability.

I wouldn't use RED to indicate what you want. I'd put Green from 15 to 20 degrees indicating ideal, yellow from 20 to 30, red to 50 degrees, and brown beyond that

Since wind has a line on top of mast?
Wind force is always in the trim of the sail and amount of sail up.
135 lbs means nothing and remember above.
Testing at Dock
Dave

mastreb wrote:It's 135 lbs. on an empty 26M to hold the mast down at the dock at 90 degrees.

110 degrees is the point of vanishing stability.

I wouldn't use RED to indicate what you want. I'd put Green from 15 to 20 degrees indicating ideal, yellow from 20 to 30, red to 50 degrees, and brown beyond that