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The limitations on sails used for racing (at least on the Chesapeake Bay,
the Great Lakes rules are different) are specified in the bylaws of the Chesapeake
Bay Alberg 30 One-Design Association. Here are the highlights.
Mainsail
Dacron cloth, between 5 oz and 7.25 oz per running yard 28.5" wide.
| Luff | 31 feet maximum | the P dimension |
| Foot | 14 feet 3 inches maximum | the E dimension |
| Leech | 33 feet 6 inches maximum |
| Midgirth | 8 feet 6 inches maximum |
The mainsail should be marked with the emblem  .
Working Jib
Dacron cloth, 7.25 oz maximum.
| Luff | 30 feet maximum |
| Foot | 10 feet 3 inches maximum |
| Leech | 25 feet 9 inches maximum |
| Midgirth | no requirements |
Large Genoa (No. 1)
Dacron cloth, between 5 oz. and 6.5 oz.
| Luff | 34 feet maximum |
| Foot | 19 feet maximum |
| Leech | 33 feet 6 inches maximum |
| Foot Round | 3 inches maximum |
Small Genoa (No. 2)
Dacron cloth, between 5 oz. and 6.5 oz.
The size of the small genoa (No. 2) shall not be larger than the No. 1 genoa in any dimension.
Spinnaker
Between 0.75 oz. and 1.2 oz.
| Luff and Leech | 35 feet 6 inches maximum to underside of swivel |
| Girth | 19 feet 4 inches maximum at any point |
The maximum length of spinnaker/whisker poles used when racing shall not exceed 10'9", the maximum "J" dimension.
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South: The Endurance Expedition
Shackleton's near-fatal journey to the Antarctic has received a
lot of press in recent years. This is Shackleton's own account—quiet,
understated, and riveting. It also describes the travails of the Aurora
expedition, intended to lay the groundwork for Shackleton on the other
side of the continent.
(Note: commissions earned from this link help defray the costs of this website)
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