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  #21  
Old March 14th, 2014, 08:18 PM
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I think that the number of men will limit the size of the largest individual sail.
Two men working together can furl/unfurl a sail. It will just take a while to get through all of the sails.
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  #22  
Old March 14th, 2014, 08:31 PM
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Quote:
Originally Posted by atpollard View Post
I think that the number of men will limit the size of the largest individual sail.
Two men working together can furl/unfurl a sail. It will just take a while to get through all of the sails.
But won't that result in unbalanced forces on the ship, if the mainsail on one side is dropped before the other?

One thing I was thinking is that with two men, they could each take a side, and drop the outer end of their main-bottom boom first, then move inward to drop the inner end of that boom, so forces on each side are equal.

(BTW, referring to "sails, lines, and booms" is about the extent of my sailing terminology. I propose that I will label drawings as best I can, then if someone with more knowledge has a more accurate terminology, I will edit the drawings to use that. Likewise, unless someone with engineering knowledge wants to figure length and placement of interior bracing, I am going to place them as looks appropriate to me.)

BTW, does anyone know the proper name for smaller booms/masts at right angle to the main ones? Would that be a spar?
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  #23  
Old March 14th, 2014, 09:25 PM
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Raising them's actually not that hard - assuming pulleys - but yeah, it's a chore raising them. Figure on windlasses.

The decent suit, town weight... lower class - call it the same as the rough living outfit - 1
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  #24  
Old March 14th, 2014, 09:43 PM
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Quote:
Originally Posted by SpaceBadger View Post
But won't that result in unbalanced forces on the ship, if the mainsail on one side is dropped before the other?

One thing I was thinking is that with two men, they could each take a side, and drop the outer end of their main-bottom boom first, then move inward to drop the inner end of that boom, so forces on each side are equal.

(BTW, referring to "sails, lines, and booms" is about the extent of my sailing terminology. I propose that I will label drawings as best I can, then if someone with more knowledge has a more accurate terminology, I will edit the drawings to use that. Likewise, unless someone with engineering knowledge wants to figure length and placement of interior bracing, I am going to place them as looks appropriate to me.)

BTW, does anyone know the proper name for smaller booms/masts at right angle to the main ones? Would that be a spar?
Spar - any beam of solid matter used in rigging sails.
Mast - a fixed vertical spar, usually supporting one or more yards.
Yard - a horizontal, usually movable, spar which supports a sheet.
Boom - a horizontal spar, including a mast that's not standing (be it a spare or a broken mast.

The horizontal rigging is more for balance, and is a variation on single mast fore-aft.

Yes, lowering the sail from one side will tilt things... but, with cargo aboard, not that much. Especially if letting both drop at once. 15 tons of sail rigging is probably 10 cubic yards of spars and drop-yards (at about 9 tons), 4000 square yards of sail (at about 2 tons), 3 tons of rope, and 1 ton of assorted cranks and cleats.
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MCG - Battle of Boughene
TAS: William Hostman (CORR 2506)
TAS: Bearer (DAIB 1326)
IMTU ct+ tm++ tne tg-- tt+ tmo+ t4- t20+ to ru+ ge+ 3i+ c+ jt au ls pi+ ta he+ st+
Wil Hostman 0602 C539857-9 S A724
OTU: 95% 3i an+ au+ br- cpu dt f+ fs++ ge ih- inf j jf+ jm+ jt+ ls- n= nc+ pi+ pp-- tp+ tr+ tv- vi-- xb+-
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  #25  
Old March 14th, 2014, 09:55 PM
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Quote:
Originally Posted by aramis View Post
Spar - any beam of solid matter used in rigging sails.
Mast - a fixed vertical spar, usually supporting one or more yards.
Yard - a horizontal, usually movable, spar which supports a sheet.
Boom - a horizontal spar, including a mast that's not standing (be it a spare or a broken mast.

The horizontal rigging is more for balance, and is a variation on single mast fore-aft.
OK, the terminology I used on the sketch is already wrong, but I'll fix it later.

I'll go ahead and post what I have so far, and we can work on changes as needed.

Quote:
Originally Posted by aramis View Post
Yes, lowering the sail from one side will tilt things... but, with cargo aboard, not that much. Especially if letting both drop at once. 15 tons of sail rigging is probably 10 cubic yards of spars and drop-yards (at about 9 tons), 4000 square yards of sail (at about 2 tons), 3 tons of rope, and 1 ton of assorted cranks and cleats.
I was thinking more of a spinning motion horizontally as one side of the ship is accelerated by having a sail hanging and catching wind, while the other side has none.

Anyway, sketches and notes are done, working on upload.
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  #26  
Old March 14th, 2014, 11:10 PM
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Strictly my opinion, but I think that each mast should have multiple smaller sails separated by yard-arms ... like a Clipper Ship.

With respect to unequal force on the ship, that happens every time the ship 'sails' at an angle to the wind. By adjusting the masts to fly unequal sail loads, it may be possible to balance the forces.

So for raising and lowering the masts, it might work best to furl (wrap up) one sail at a time, alternating masts, and working your way down the masts. As each sail is lowered, the airship can adjust the rudder/tail to counterbalance the force and keep the ship level. When the sails are all furled, lowering the masts should be a simple matter.

Just my thoughts.
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