DEFSTAN 02-304(PT3)/2(2002) : 2002

TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
Categories of Defence Standard
Related Documents
Health and Safety
Additional Information
CONTENTS
SECTION 1 - PERFORMANCE SPECIFICATION
            1.1 Extent of Information to be Supplied
                by Ministry of Defence
            1.2 Environmental Conditions
            1.3 Quality Levels
SECTION 2 - NATIONAL/INTERNATIONAL REGULATIONS
SECTION 3 - MILITARY STANDARDS/REQUIREMENTS
            3.1 Preparation of Drawings
            3.2 Material Selection
            3.3 Manufacture of Propellers
                3.3.1 Cast Components
                3.3.2 Inspection During Manufacture
                3.3.3 Propeller Air Emission System (when fitted)
                3.3.4 Welding
                3.3.5 Contractor's Responsibility
                3.3.6 Heat Treatment
                3.3.7 Magnetic Permeability Tests
                3.3.8 Boring Fixed Pitch Propeller Boss
                3.3.9 Controllable Pitch Propeller Blade Palm
            3.4 Final Inspection
                3.4.1 Severity Zones
                3.4.2 Visual Inspection
                3.4.3 Liquid Penetrant
                3.4.4 Radiography or Ultrasonics
                3.4.5 Dimensional Inspection of Propellers
                      3.4.5.1 Noise-Reduced Propellers
                      3.4.5.2 Non-Noise-Reduced Propellers
                3.4.6 Dimensional Inspection of Submarine
                      Pump - Jets
                      3.4.6.1 Duct
                      3.4.6.2 Stator Blades and Rotor Blades.
                      3.4.6.3 Anti-Singing Trailing Edge Treatment
                      3.4.6.4 Stator and Rotor Boss
                3.4.7 Surface Finish of Propulsors
            3.5 Acceptance Standards
                3.5.1 General
                3.5.2 Material Acceptance Standards for Propellers
                3.5.3 Dimensional Tolerances for Propellers
                3.5.4 Dimensional Tolerances for Submarine Pump-Jets
                3.5.5 Surface Finish of Propellers
                3.5.6 Surface Finish of Submarine Pump-Jets
            3.6 Balancing
                3.6.1 Fixed Pitch Propeller
                3.6.2 Controllable Pitch Propeller
                3.6.3 Pump-Jet Rotors
            3.7 Repair of Defects
                3.7.1 Rectification of Defects by Blending
                3.7.2 Rectification of Defects by Welding
                3.7.3 Limits on Combined Weld Repair
            3.8 Datum Pitch Marks and Identification Markings
                3.8.1 Convention for Blade Numbering
            3.9 Packaging and Handling
                3.9.1 Preparation for Transit and
                      Storage - Fixed Pitch Propeller
                3.9.2 Preparation for Transit and
                      Storage - Controllable Pitch Propeller
                      Blades and Pump-Jet Rotor Blades
                3.9.3 Preparation for Transit and
                      Storage - Controllable Pitch Propeller Hubs
                3.9.4 Handling
                3.9.5 Security Classified Propulsors
            3.10 Quality Assurance
SECTION 4 - DESIGN REQUIREMENTS/GUIDANCE
            4.1 General Design Requirements for Propulsors
                4.1.1 Secondary Noise Reduction Features
                4.1.2 Handing of Propellers
                4.1.3 Threaded Fasteners
                4.1.4 Arrangements for Securing Fixed Pitch
                      Propeller to Shaft
                4.1.5 Fixed Pitch Propeller
                4.1.6 Controllable Pitch Propeller
                4.1.7 Submarine Pump-Jets
                      4.1.7.1 Rotors-Interchangeability and
                              Provision for Replacement
                      4.1.7.2 Stators
                      4.1.7.3 Fairing Plates
                      4.1.7.4 Lifting Arrangements
                      4.1.7.5 Pump-Jet Vibrational Characteristics
SECTION 5 - CORPORATE KNOWLEDGE AND EXPERIENCE
ANNEX A - RELATED DOCUMENTS
ANNEX B - ABBREVIATIONS AND DEFINITIONS
ANNEX C - PROCUREMENT CHECK LIST
ANNEX D - WELDER QUALIFICATION AND WELD PROCEDURE
ANNEX E - INSTRUCTIONS FOR HANDLING WELD PROCEDURE SUBMISSION FORM
Weld Procedure Submission Form (Sheet 1 of 2)
Weld Procedure Submission Form (Sheet 2 of 2)
ANNEX F - PROPELLER HISTORY SHEETS
ALPHABETICAL INDEX

Defines the manufacturing requirements for propulsors fitted to HM Surface Ships and Submarines.