Jacques,

did you just scale the measures to fit Arne's design for your Sangria? Looks okay on a first glimpse.

Paul 

Anonymous wrote:

Jacques, not a silly question! But the answer is a very clear No. A bermudan mast is not designed to and not able to take the bending loads of an unstayed mast.

Arne & Paul

Enclosed sheet 3 . What do you think about cambered panels ?

Nice evening

Jacques

Anonymous wrote:

Anonymous wrote:

Bonjour Jacques,

it is of course your decision, and I don't want to push. Your preferred version 1 from Arne will work fine, also. Usually 80% is good enough, if the last percentage points would require a relatively large amount of extra work - in your case, a different mast than at hand. 

I definitely agree with Arne: Please, at least, build cambered panels ;-)

Cordialement,

Paul

 

Yes , with cambered panels .

Jacques

Silly question (perhaps-probably !!): is it possible to use my Bermuda mast by transforming it into a self-supporting mast?

Jacques

Bonjour Jacques,

it is of course your decision, and I don't want to push. Your preferred version 1 from Arne will work fine, also. Usually 80% is good enough, if the last percentage points would require a relatively large amount of extra work - in your case, a different mast than at hand. 

I definitely agree with Arne: Please, at least, build cambered panels ;-)

Cordialement,

Paul

Anonymous wrote:

Paul has a point.
However, we don’t know how and where Jacques’ boat is meant to be sailed yet.
If some offshore sailing is on the program, I would hesitate with rigging with a too tall mast.

The shown sailplan, below, has 32sqm sail area, and with the mast height approaching the height of the Bermuda rig’s mast. This should give a SA/disp. of around 22.3, so she cannot be called under-rigged.

Arne

(Full size diagram on Arne's sketches, section 8)

My sailing area: southern Brittany and mainly the Gulf of Morbihan. No offshore sailing, but tides and strong currents, particularly in the Gulf of Morbihan (mooring buoy  Nevezadenn - Name of my Sangria).

Nevezadenn is equipped with a 6 hp outboard motor, and my goal is to sail as much as possible.

No regattas.

I sail alone and in both summer and winter

When sailing, I seek simplicity and ease.

My goal is to observe the sea—fauna and flora—and to make observations for the citizen science association of which I am the president.

All this to say that the junk rig should allow me to meet these needs. I don't have any specific knowledge of junk rig - I seek advice from you-, but Arne's proposed version 1 seems to meet my needs, especially since the aluminum lamppost that will serve as the mast is 10 m long, and after a few adjustments, it's likely to be 9.80 m long.

What do you think ?

Good Sunday

Jacques