Objective:
Confirm the requirements for watertight closure documentation with key Navy technical personnel, and provide design documentation for previously approved doors that deviate from the current Navy standard.
Summary:
On a large Navy ship there may well be dozens of unique door designs that deviate in some way from the Navy standard design, increasing part counts and procurement costs.
For ship programs that require shock qualification of watertight closures, the unique door designs that deviate in some way from the Navy standard design aren’t considered to be shock qualified. In many cases, the Navy will call for shock testing to be done to prove the shock resistance of the non-standard door design, which incurs additional costs.
The project developed designs for a family of 6 door sizes comprising 6 panels and 6 frames, down from the present 7 door sizes comprising 32 panels and 36 frames. Prototypes were built and tested and put through a full range of shock testing. The approved and qualified door designs cover the vast majority of doors used on new construction ships. The associated documentation will give accurate logistics data to ship maintainers and thereby support cost effective maintenance and repair.
Point of Contact:
John Walks, HII Ingalls Shipbuilding
Request Final Report from NSRP– Distribution Authorized only to U.S. Shipbuilding Industries.
Overview
Project Team:
- HII Ingalls Shipbuilding
- Bollinger Shipyards
February 2016- February 2019
NSRP ASE Investment: $698K
Industry Investment: 699K