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Engineering Report IFS 335 Issue 2

DOTC-19-05-INIT5046; 30mm Gun Mount

DOTC-19-05-INIT5046; 30mm Gun Mount

MSI-Defence Systems US LLC

INTERFACE SPECIFICATION

Mk113 GUN SYSTEM

ELECTRICAL AND MECHANICAL

INTERFACE CONTROL DOCUMENT

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Controlled By: Department of the Navy Controlled By: NSWCDD, E32 CUI Categories: CTI; EXPT Distribution/Dissemination Control: Distribution D POC: Erik Muse, (540) 653-5522

DISTRIBUTION STATEMENT D: Distribution authorized to Department of Defense and U.S. DoD contractors only Controlled Technical Information, Export Controlled 02 February 2021. Other request for this document shall be referred to NSWCDD, Integrated Engagement Systems Department.

WARNING -This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et seq.) or the Export Control Reform Act of 2018 (Title 50, U.S.C., Chapter 58, Sec. 4801-4852). Violations of these export laws are subject to severe criminal penalties. Disseminate in accordance with provisions of DOD Directive 5230.25.

DESTRUCTION NOTICE: Destroy by any method that will prevent Disclosure of contents or reconstruction of the document.

DOTC-19-05-INIT5046; 30mm Gun Mount

FOREWORD

GOVERNMENT PURPOSE RIGHTS

Contract No.: DOTC-19-05-INIT5046

Contractor Name: MSI-Defence Systems US, LLC.

Contractor Address: 1298 Galleria Boulevard, Rock Hill, SC 29730, United States

Expiration Date: November 14, 2022

The Government's rights to use, modify, reproduce, release, perform, display, or disclose these technical data are restricted by paragraph (b)(2) of the Rights in

Technical Data—Non-commercial Items clause contained in the above identified contract. No restrictions apply after the expiration date shown above. Any reproduction of technical data or portions thereof marked with this legend must also reproduce the markings.

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DOTC-19-05-INIT5046; 30mm Gun Mount

RECORD OF CHANGES AND MODIFICATIONS FOR IFS 335

Issue No

Description of Changes Date Originator

1 First issue. 22/10/20 N Dawson

CO4859.

Foreword page added.

Footer update.

References to local mode deleted.

Figure 1.1: Fire interrupt added.

Figure 2.1: Pictorial update, swept radius at LCU updated.

Table 3.2 added.

22/02/21 N Dawson

DOTC-19-05-INIT5046; 30mm Gun Mount

CONTENTS

SECTION TITLE

1 Introduction

2 Mechanical Data

3 Electrical Data

ANNEX A Related Documents

ANNEX B Abbreviations

DOTC-19-05-INIT5046; 30mm Gun Mount

SECTION 1

INTRODUCTION

Paragraph Description

1.1 Scope

1.2 Scope of Supply

1.3 Contract Reference

Figure

1.1 Mk113 Gun System Block Diagram

DOTC-19-05-INIT5046; 30mm Gun Mount

1.1 Scope

This MSI-DS Interface Specification is produced to support Ordnance Technology Initiative Title DOTC-19-05-INIT5046; 30mm Gun Mount. The equipment described herein is designated the Mk113 Qualification Gun System and will be supplied to support Phase 2 project activities.

1.2 Scope of Supply

Mk113 Gun Mount (ex-ordnance) Auxiliary Control Box

1.3 Contract Reference

ORDNANCE TECHNOLOGY BASE AGREEMENT NO.: 2020-436

ORDNANCE TECHNOLOGY INITIATIVE TITLE: DOTC-19-05-INIT5046;

30mm Gun Mount

DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 1.1: Mk113 Gun System Block Diagram

1 PHASE

SUPPLY

AUXILIARY

CONTROL BOX

DISCRETE

SERIAL DATA

ACB

FIRE CONTROL SYSTEM

FIRE DEMAND 1 PHASE

SUPPLY

ISOL

ISOL

Power

Supplies

Remote/Safe/ Maintain

Conditioning

Charging

FIRE INTERRUPTSAFETY

SWITCH

DOTC-19-05-INIT5046; 30mm Gun Mount

SECTION 2

MECHANICAL DATA

Paragraph Description

2.1 Introduction

2.2 Identification

2.3 Outline and Dimensions

2.4 Mass

2.5 Centre of Gravity

Figure

2.1 Mk113 Gun Mount General Arrangement

2.2 Mk113 Gun Mount Mass and Centre of Gravity

2.3 Mk113 Gun Mount General Layout and Plinth Access

Requirements

2.4 Mk113 Gun Mount Access Areas for Servicing

2.5 ACB General Arrangement

2.6 Mk113 Gun Mount Deck Seating Requirements

DOTC-19-05-INIT5046; 30mm Gun Mount

2.1 Introduction

This section details the physical data relating to the Mk113 Gun Mount and its installation.

Note: all dimensions are in mm.

2.2 Identification

All part numbers will be identified following agreement on scope of supply.

2.3 Outline and Dimensions

The overall and fixing dimensions of the Mk113 Gun Mount are specified in Figure 2.1: Mk113 Gun Mount General Arrangement.

The overall and fixing dimensions for the Auxiliary Control Box (ACB) are given in Figure 2.5: ACB General Arrangement.

2.4 Mass

The mass of the Mk113 Gun Mount is specified in Figure 2.2: Mk113 Gun Mount Mass and Centre of Gravity.

The mass of the ACB is nominally 10 kg.

2.5 Centre of Gravity

The centre of gravity of the Mk113 Gun Mount is specified in Figure 2.2.

The centre of gravity of the ACB is specified in Figure 2.5.

2.6 Requirements for Mk113 Deck Seating

Refer to Figure 2.6: Mk113 Gun Mount Deck Seating Requirements.

DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 2.1: Mk113 Gun Mount General Arrangement

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DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 2.2: Mk113 Gun Mount Mass and Centre of Gravity

NOTE: Arrows indicate direction of (+) values.

CONDITION

CENTRE OF GRAVITY

(ESTIMATED)

MASS

(NOMINAL)

X (mm) Y (mm) Z (mm) (kg)

EMPTY -66 -59 840 1460

LEFT AMMUNITION

FULL (200 rds)

-69 7.5 820 1638

RIGHT AMMUNITION

FULL (200 rds)

-69 -127 820 1638

BOTH AMMUNITION

FULL (400 rds)

-35 -59 825 1800

DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 2.3: Mk113 Gun Mount General Layout and Plinth Access Requirements

R 870

Base

Casting

Access to Cable

Connections

Gun mount mechanical zero

R 2200

Base unit extraction

Swept arc

DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 2.4: Mk113 Gun Mount Access Areas for Servicing

DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 2.5: ACB General Arrangement

DOTC-19-05-INIT5046; 30mm Gun Mount

Figure 2.6: Mk113 Gun Mount Deck Seating Requirements

DOTC-19-05-INIT5046; 30mm Gun Mount

SECTION 3

ELECTRICAL

Paragraph Description

3.1 Introduction

3.2 Electrical Data

3.3 Electrical connectors

Table

3.1 Electrical Services for the Mk113

Gun Mount

3.2 Fixed Connectors for the Mk113

Gun Mount

DOTC-19-05-INIT5046; 30mm Gun Mount

3.1 Introduction

This section details the electrical power requirements for the Mk113 Gun Mount.

3.2 Installation Data

3.2.1 Power Requirements of the Mk113 Gun Mount

The equipment requires the following power supplies:

1. Gun Mounting 115V 50/60 Hz 1Phase.

2. Gun Mounting 115V 50/60 Hz 1Phase.

Supply 1 is required at all times to internally condition the gun mounting.

Supply 2 is required at all times to charge batteries in the gun mounting.

Refer to Table 3.1 for details of:

• Voltage

• Frequency

• Number of phases

• Maximum continuous load

• Starting (surge) current

• Surge duration

• Power factor

Power supplies shall be in accordance with MIL STD 1399.

3.2.2 Power Supply Isolation

A lockable isolating switch for each supply is recommended and should be located in the vicinity of the gun mount (customer supply).

3.2.3 Supply Connection to Earth

Supplies below have live conductors unearthed:

1. 1 phase supply expected resistance to earth 1 MΩ.

DOTC-19-05-INIT5046; 30mm Gun Mount

Table 3.1: Electrical Services for the Mk113 Gun Mount

EQUIPMENT

NAME

ELECTRICAL SUPPLIES / MAINS POWER

REMARKS /

NOTES

Voltage (V) Frequency (Hz)

Phase Power Factor

Load (kVA)

Load (kW)

Surge Current

(A)

Surge time (ms)

Gun mount 115 50/60 1 0.9 1.0 12 5 Conditioning

Gun mount 115 50/60 1 0.9 3.0 50 10 Charging

(8.7 A)

(26.1 A)

Engineering Report IFS335 Issue 2

DOTC-19-05-INIT5046; 30mm Gun Mount

3.3 Electrical Connectors

The Mk113 interface to ship’s cabling is provided by fixed electrical connectors on the front face of the gun mount plinth assembly and at the ACB. Refer to Table 3.2 for details of the fixed connectors.

Table 3.2: Fixed Connectors for the Mk113 Gun System

Item No.

Ref Location/Function Part no.

1 PL B1 Mount/Fire demand CECC75 201-002 CB98FCNA 01G

2 PL B2 Mount/Fire interrupt CECC75 201-002 CC98FCNA 01G

3 PL B5 Mount/115V conditioning CECC75 201-002 CD05MCNA 01G

4 PL B6 Mount/ACB CECC75 201-002 CE26MCNA 01G

5 PL B7 Mount/115V charging CECC75 201-002 CE06MCNA 01G

6 PL B8 Mount/Serial data RJF TV 7 1 BZ

7 PL B12 Mount/Discrete CECC75 201-002 CG41MCNA 01G

8 PL1 ACB/ACB CECC75 201-002 CE26MCNA 01G

DOTC-19-05-INIT5046; 30mm Gun Mount

ANNEX A

Related Documents

The following documents and publications are referred to in this Interface Specification.

Item Document Title/Source

1 MIL-STD-1399 Electric Power, Alternating Current / Department of Defense Interface Standard.

2 IFS333 Interface Specification. Direct Link Interfaces between the Mk113 Gun System and the Fire Control System.

DOTC-19-05-INIT5046; 30mm Gun Mount

ANNEX B

Abbreviations

The following abbreviations are included, and the definitions have been listed to assist in the interpretation of this Installation Guidance Package:

Abbreviation Description

A Ampere

AC Alternating Current

ACB Auxiliary Control Box

ACH Anti-Condensation Heaters

Def Stan Defence Standard

FCS Fire Control System g gramme

Hz Hertz

ISOL Isolator (electrical supply) kg kilo gramme kN kilo Newton kNM kilo Newton Metre kVA kilo Volt Ampere kW kilo Watt max maximum ml milli litre mm milli metre

MN/m Mega Newton/metre

MNm/rad Mega Newton ms milli second

MSI-DS MSI Defence Systems Limited

MΩ Mega Ohm

Nm Newton metre

NSN NATO Stock Number

PCD Pitch Circle Diameter

TBA To be Advised

V Volt

UK MoD United Kingdom Ministry of Defence