damage control and repair seattle safety at sea seminar 25 feb 2012 paul h. miller, d.eng. p.e....

18
Damage Control and Repair Seattle Safety at Sea Seminar 25 Feb 2012 Paul H. Miller, D.Eng. P.E. Professor of Naval Architecture United States Naval Academy

Upload: rodney-jenkins

Post on 16-Dec-2015

213 views

Category:

Documents


0 download

TRANSCRIPT

Damage Control and Repair

Seattle Safety at Sea

Seminar25 Feb 2012

Paul H. Miller, D.Eng. P.E.Professor of Naval Architecture

United States Naval Academy

When Things Go South…

1. Dismasting

2. Steering loss

3. Flooding

4. Grounding

5. Structural damage• Keels• Collisions

2

Dismasting

3

Dismasting

1. Is everyone OK?

2. Is the broken rig an immediate danger?

3. Jettison or secure?

4. Establish communications

5. Motor or jury rig?

6. Distance to nearest safe port?

4

Steering Loss

5

Steering Loss1. Communicate to those nearby!

• “No steering!”

2. Slow the boat down (drop sails, engine in neutral)

3. Repairable?

4. Jury rudder – prefabricated or Macgyver it? Spin pole plus floorboards is a possible option

6

Flooding: Optimist or Pessimist?

1. How fast?!!

2. Find source• Hose, seacock,• Shafts, head

3. Communicate!

4. Plug and Bail

5. Sailboats can float with a lot of water

6. Intentional grounding?

7

Grounding

8

Hard or soft bottom? Damage? Tide status?Wait or take action? Kedge/Mast Pull

Case Study!

9

It was a dark and stormy night…

You get a radio call. What would you do?

Collisions

10

The first goal is to avoid them! Maintain situational awareness!

Collisions

11

Collisions

12

1. Is everyone OK?2. Look for water

ingression3. Heel and

patch/plug4. Communicate5. Think before

separating boats

Some Boats Are Better Built Than Others

13

Traditional Cored Composite vs Modern Toughened

Allisions (collisions with fixed objects)

1. Maintain situational awareness!

2. Don’t forget your GPS is quite accurate!

14

What would happen if they backed away?

Keel Loss

15

Unfortunately all too common today.

Routine, appropriate inspections are critical, both in and out of the water.

Keel Loss

(0. Are we still upright?!)

1. Is everyone accounted for?

2. Communicate to SAR Coordinator (will your radio still work?)

3. Prepare to abandon ship

4. Evaluate the risk/reward of staying or abandoning

16

Watertight Integrity Lost

1. Reduce speed immediately!

2. Minimize water over the deck

3. Communicate!

4. Repair ASAP!

17

Big Picture1. Boats are fairly tough and can take

a lot of damage

2. Establish communications ASAP

3. Evaluate situation for best options

18