DI-MISC-80904

Ships, Booklet of Inclining Experiment Data

The Booklet of Inclining Experiment Data provides, in two parts, the observations, calculations, and stability or equilibrium data used to determine a ship's displacement, center of gravity, and stability characteristics.

Approval DateOctober 3, 1989

AMSC NumberN4837

Preparing Activity—

Project Number—

OPRSH/SEA 55W4

DTIC Applicable—

GIDEP Applicable—

Limitation—

Applicable FormsStandard NAVSEA forms used in the preparation of this report may be obtained by contacting: Naval Sea Systems Command, Code 55W4 Stability Division, NC-3 Rm 3W40, 2531 Jefferson Davis Highway, Arlington, VA 22202.

Approval Limitation—

Form VersionJUN 86

DID Formatdd_form_1664

963C CompliantNo

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Supersedes

UDI-E-23202UDI-E-23255

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Description & Purpose

The BOOKLET OF INCLINING EXPERIMENT DATA consists of two parts. The Inclining Experiment Report (Part 1) contains the observations and calculations leading to the determination of the displacement and location of the center of gravity of the ship in light condition. Stability Data (Part 2) for surface ships and Stability and Equilibrium Data for Submarines contain data relative to the characteristics of the ship in the operating conditions. Preliminary reports of Parts 1 and 2 permit evaluation of the ship's stability and reserve buoyancy and may indicate the necessity for action to improve the ship, a change in policy or weight control or additional inclining experiments.

Application & Interrelationship

This DID contains the format and content preparation instructions for the data product generated by the specific and discrete task requirements as delineated in the contract. This DID supersedes UDI-E-23202 and UDI-E-23255. The reference document cited herein may be obtained by writing to: Naval Publications and Forms Center, 5801 Tabor Ave., Philadelphia, PA 19120, Attn: Customer Service.

Use & Relationship

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Preparation Instructions

1Reference Documents.The applicable issue of the documents cited herein, including their approval dates and dates of any applicable amendments, notices, and revisions shall be as specified in the contract.

2Format.The report shall be in the format specified in 096-2.129 of NAVSEA S9086-C6-STM-000/CH-096.

3Content.The report shall contain the following as appropriate:

3.1Part 1 - Inclining Experiment Report.The inclining experiment report shall contain the following pages as applicable: NAVSEA 9290/6- Form Number and Title: 1 Title Sheet - Inclining Experiment Report, (Part 1), For Surface Ships and Submarines 2 Armament, Boats, Submarine Batteries, Ballast 3 Ship in Condition A - Light Ship 4 Change in Condition A Weight Since Inclining 5/6 Displacement and Center of Gravity As Inclined 7 Functions of Wedge Areas (as required) 8 Displacement and Center of Gravity in Conditions A and A-1 9 Weight Movements and Inclinations 10 Plot of Tangents 11 Weights to Complete 12 Weights to Deduct 13 Weights to Relocate 14 Vertical Moment of Free Surface "As Inclined" 15 Diagram Showing Location of Draft Marks 16 Remarks and Miscellaneous Calculations

3.2Part 2 - Stability Data for Surface Ships Only.The stability report for surface ships shall contain the following pages as applicable: NAVSEA 9290/6- Form Number and Title: 17 Title Sheet - Inclining Experiment Report, (Part 2), For Surface Ships Only 2 Armament, Boats, Submarine Batteries, Ballast 3 Ship in Condition A - Light Ship 4 Change in Condition A Weight Since Inclining *Loading Conditions: 18 Ship in Condition ___ (Small Free Surface Effect), or 19 Ship in Condition ___ (Large Free Surface Effect) Excessive Trim in Loading Condition 20 Displacement and Other Curves 21 Cross Curves of Stability 15 Diagram Showing Location of Draft Marks 22 Approximate Change in Metacentric Height Due to Added Weight 23 Summary of Load Items in Condition ___ 24 Details of Load Items in Condition ___ 25 Correction to Righting Arms for Free Surface Effect in Condition ___ 26 Tank Capacities 27 Compartment Capacities 28 Table of Frame Spacing 16 Remarks and Miscellaneous Calculations * The standard loading conditions are: Condition A: Light Ship Condition A-1: Light Ship (w/o permanent ballast) Condition B: Minimum Operating Condition C: Optimum Battle Condition D: Full Load Departure

3.3Part 2 - Stability and Equilibrium Data for Submarines.The stability and buoyancy report for submarines shall contain the following pages as applicable: NAVSEA 9290/6- Form Number and Title: 29 Title Sheet - Inclining Experiment Report, (Part 2), Stability and Equilibrium Data for Submarines 30 Load to Submerge Determination 2 Armament, Boats, Submarine Batteries, Ballast 3 Ship in Condition A - Light Ship 31 Detail Changes in Condition A and Submerged Displacement Since Last Inclining and Trim Dive 32 Load to Submerge at Time of Trim Dive 33 Details of Load on Trim Dive 34 Ship in Condition ___ - Surface Diving Trim 35 Ship in Condition ___ - Submerged 36 Variable Ballast in Condition ___ 20 Displacement and Other Curves 21 Cross Curves of Stability 15 Diagram Showing Location of Draft Marks 37 Variable Load in Conditions N and M 38 Details of Variable Load in Condition N and M 39 Water Ballast in Main Ballast, Fuel Ballast and Safety Tanks 40 Residual Water, Water Seal, and MBT Lead Corrections 41 Equilibrium Polygon 42 Points for Equilibrium Polygon *Equilibrium Conditions 43 Light No.1 & Light No.2 44 Heavy No.1 & Heavy No.2 45 Heavy No.1 (With Mines) & Heavy No.2 (With Mines) 46 Heavy FWD No.1 47 Heavy FWD No.2 48 Heavy Aft 49 Details of Load for Equilibrium Conditions 50 Plot of Minimum GM While Trimming Down 51 Conditions While Trimming Down 52 Ship in Condition ___ Surface Diving Trim, Ballast Tanks Flooded, One Side Only 28 Table of Frame Spacing -- Plot of Hull and Material Compression vs Percent of Test Depth 16 Remarks and Miscellaneous Calculation

3.4Engineering Judgement.An opinion by the inclining activity of the reliability of the experiment.

3.5Graphics.Displacement and other curves drawing.

3.6Photographs.Photographs of the vessel topside installations, particularly the location of inclining weights, masts, shipyard gear and draft marks, forward/aft and port/starboard, at zero inclining moment.

References

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