Challenge: Beaching a Trimaran

[beau]

I have a 42 ft aluminium motor sailor trimaran.
It has a flat bottom and draws only 1ft of water. I quite often beach the boat as the tide goes out.
I have always been a bit concerned that if the weather was to change when I am beached, would I be in trouble. ?
However as I only draw 12 inches and I have my anchor out to sea with the bow pointing out to sea, would I really have a problem.
I would not be getting large waves on a gently sloping beach with a 1ft draft?
and as soon as the boat was to lift i would be winching it out to deeper water, where I could lower the outboards.
Any comments,
Obviously I will just have to try it but is there something else I should be aware of

[Feral Cat]

Not sure about the answer to your question but that is a way cool boat! does it sail well?

Thinking about the question, if the weather created a real storm the surge with waves would be my main concern. Getting enough draft with the aft end to get and keep the motor out of the sand with wave action would be my main concern.

Not sure how fast the tides shift there, a few hours can be enough for a good storm to produce itself.

Just my .02 worth

[daddle]

Heavy surf can arrive instantly. Days of small stuff, then instantly full breakers that would challenge your security. You could probably get out to deep water by winching it if you didn't get upset or pushed ashore by the first set.

I'm not saying it's a huge risk. But it's a possibility.

[beau]

It is esentially a motor boat with 2X 90 hp Outboards. Maximum speed is 15 knots but we generally cruise on one motor at 8 knots to save fuel.
The sail is an Oceanic lateen, a large triangular sail on a short inexpensive mast. It is only used to sail downwind and is not suitable for tacking.
We wait in port for a suitable weather window and Sail when the forecast is Ok for a couple of days.
We are currently planning a trip form Australia to Indonesia-Phillipines where we can island hop all the way, at 100 nautical miles per day.

[rusky]

I think I've seen you in Horseshoe Bay, Peel Is. when we were there in April or May this year.
Good luck with the trip.

[SailFastTri]

Don't beach if you value your anti-fouling paint.

Other than that -- as others have pointed out, conditions can change rapidly, and your flat bottom could become a concave bottom if your boat got repeatedly lifted and slammed on the shallow seabed.