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Hull and Outfitting

Modifying User Defined Ancillary Geometry

  • Last UpdatedJan 13, 2026
  • 2 minute read

The MDS application allows the MDS Administrator to create a set of ancillary standards with their own geometry. Configuration of standards dimensionally is covered in MDS Ancillary Defaults Form.

The term ‘user’ in this section is the term used to represent ‘client/customer’.

The user defined ancillary standards comprise a number of support types. The following table shows the user defined ancillary types that have been created and which can be configured geometrically:

Standard

Description

Range

Total

From

To

AT

Ancillary

AT500

AT700

201

LT

Lug

LT500

LT700

201

BT

U-Bolt

BT500

BT700

201

AN

Anchor for shoes

AN500

AN569

70

AN

Anchor for pipes

AN570

AN639

70

AN

Anchor for trunnions

AN640

GT700

61

GT

Guide for shoes

GT500

GT569

70

GT

Guide for pipes

GT570

GR639

70

GT

Guide for trunnions

GT640

GT700

61

ST

Stops for shoes

ST500

ST569

70

ST

Stops for pipes

ST570

ST639

70

ST

Stops for trunnions

ST640

ST700

61

The ability to create these user defined ancillary types is achieved by MDS being configured to use a blank set of ancillaries of the above types, so that users can complete their own geometry. A new MDS user project called MDU has been created; a hierarchy /MDU prefix is used instead of the /MDS prefix where applicable. The following diagrams shows how this is implemented into an MDS project environment.

The MDU project has the geometry and point sets pre-created and linked into the MDS catalogue and specification. The geometry sets are empty and the point sets have the minimum p-point requirements for MDS. You can then create the geometry within the MDU project and set up any design parameters required for the component. The MDU project only stores geometry, point and data sets for the types and ranges detailed earlier.

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