Transport Publication TP 14619 E
- Table of Contents
- Introduction
- Who can use this guide?
- Scope of the Simplified Assessment
- Definitions
- What is the difference between a fully decked and an open vessel?
- Preparing for the assessment
- Carrying out the assessment step by step
- If your vessel does not pass
- Record of Stability Assessment
- Converting to degrees
- Appendix 1 - Downflooding height measurement examples
- Appendix 2 - Evaluation criteria
Downflooding Height (upright) HD
[Click image for a larger view]
![[Click image for a larger view]](https://tc.canada.ca/sites/default/files/styles/media_library/public/migrated/hd.gif?itok=cMYli_yx){kind=link}
* If the engine space of an open boat is provided with a high water alarm and fitted with an efficient bilge pumping system, louvered engine space vents are not considered downflooding openings.
Appendix 2 - Evaluation criteria
Minimum downflooding height ( m ) in upright condition
Fully decked vessel
L /17
Open Vessel
6 m - 7.5 m
L /10
7.5 m - 12 m
0.75 m
L - Length, as defined on page 4, in metres
Examples:
7 metre fully docked vessel
41 cm (7 m /17 = 0.41 m )
7 metre open vessel
70 cm (7 m /10 = 0.70 m )
Maximum allowed offset load heel angle
| Vessel length ( m ) | Maximum offset heel angle (°) |
|---|---|
| 6 | 15.2 |
| 7 | 13.8 |
| 8 | 12.5 |
| 9 | 11.0 |
| 10 | 10.0 |
| 11 | 9.1 |
| 12 | 8.3 |
Minimum residual downflooding height
| Vessel length ( m ) | Minimum residual downflooding height ( m ) |
|---|---|
| 6 | 0.27 |
| 7 | 0.29 |
| 8 | 0.31 |
| 9 | 0.33 |
| 10 | 0.35 |
| 11 | 0.36 |
| 12 | 0.38 |
Note: Calculate values for intermediate lengths and for lengths over 12 m (not more than 15 tons gross tonnage)