ASA 108, Offshore Passagemaking
Able to skipper a sailing vessel on extended offshore passages requiring celestial navigation. Knowledge of long-term passage planning, offshore vessel selection, sail repair, offshore first aid, watch-keeping, emergency procedures, abandon ship protocols, safety and seamanship.
1. Plan a passage across the North Atlantic or Pacific and state the advantages, disadvantages and hazards of various routes, utilizing Ocean Passages for the World, climatic charts, Great Circle plotting charts, plotting instruments, etc.
2. Plot a series of rhumb lines on a Mercator chart to approximate a great circle route.
3. Describe the publications required for prudent navigation on an offshore passage including:
- Coastal charts and publications
- Work sheets
- Ocean Passages for the World
- Nautical almanac
- Sight reduction tables
- Plotting sheets
4. Describe the effect of the following factors when selecting a vessel for an offshore ocean passage of at least 1000 miles:
- Hull shape
- Hull construction
- Water capacity
- Fuel capacity
- Interior layout
5. List essential items for minor repairs to vessel, rigging and sails.
6. Describe various items required to prevent chafe.
7. Describe the advantages and disadvantages of three self steering methods/devices.
8. Plan meals for a minimum of four people on a seven day offshore passage.
9. Describe proper methods for preserving/storing food and the expected storage life of different types of food.
10.Describe the following factors to be considered when selecting crew members for an offshore passage:
- Physical capability
11. Describe suitable clothing for an offshore voyage.
12. State a source of obtaining advanced first aid information while on an offshore passage.
13. Identify and describe the basic treatment of potential medical problems.
14. Describe methods of preventing injury to the cook or nearby persons while cooking at sea.
15. List items carried in an offshore first aid kit.
16. Prepare and file a passage plan.
17. Describe three (3) watch-keeping systems and the advantages and disadvantages of each.
18. Describe alternate watch-keeping arrangements in the event crew members are incapacitated.
19. Describe the duties of the on-watch and off-watch crew.
20. Establish a routine maintenance schedule to periodically check the following items:
- Sea cocks
- Galley & supplies
- Fuel and water
- Safety equipment
- Electronic equipment