dual function fuze dm173 for cartridge 120mm x 570 he · – development phase finished end of 2008...

1Copyright JUNGHANS Microtec GmbH

A Diehl and Thales CompanyMay, 21st, 2009

Dual Function Fuze DM173 for Cartridge 120mm x 570 HE

53rd Annual Fuze Conference 2009 (Orlando, FL)

Martin LEONHARDT

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Copyright JUNGHANS Microtec GmbHA Diehl and Thales CompanyMay, 21st, 2009

Content– Program Background, Application– Requirements– Fuze Functioning Modes– Overview of the Cartridge and Fuze– Arming Criteria’s– Technical Solutions– Photos of Fuze Hardware– Project Status– Trial Results

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Program Background– Germany, Switzerland and The Netherlands

have agreed to co-

operate on a joint program

– Rheinmetall W&M and JUNGHANS Microtec have teamed up to develop a multi-

purpose

projectile for use against•

Hard / soft targets

•

Anti-

personnel•

Vehicles

•

Buildings, etc.

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Application– 120mm smoothbore Tank Gun

Combat Battle Tank “Leopard 2”

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Requirements– STANAG 4157; STANAG 4187; STANAG 4235;

STANAG 4239; STANAG 4439– MIL-STD 331C; MIL-STD 1316; MIL-STD 810– Muzzle Safety Distance

≥

20m

– Arming Distance

≤

80m– Overall functional Reliability ≥

98%

– Functioning Temperature -46°C to +63°C– Storage Temperature -54°C to +71°C

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Fuze Functioning Modes– Programming

•

Impact mode with optional delay•

Airburst, programmable ignition time from 64ms to 12s

•

Self-

destruct function

– Default•

Impact mode without delay

•

Self-

destruct function

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Overview of the Cartridge DM11

Fuze

Warhead with insensitive HE

Programming Wire

Tail UnitGas pressure switch

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Main Fuze Components

Firing Train Insensitiv booster

Relay charge Detonator

Set back generator

Electrical connector

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Arming Criteria's– 1st Safety

•

Safety Element: Set back pins

•

Arming Criteria: Acceleration

Set back pins

Rotor

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Arming Criteria's– 2nd Safety

•

Safety Element: Piston actuator / gas pressure

switch•

Arming Criteria:

Gas pressure of the propellant

Piston actuator

Rotor

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Technical Solutions– Safety Distance

•

Electronical timer starts after gas pressure switch is closed

•

Piston actuator will be fired when the time is elapsed

– Programming•

Digital

•

Talk-

back signal•

Continuous update

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Technical Solutions– Power Supply

•

Via the control unit for the µP•

Basic fuze function via a set back generator

– Target Impact Detection•

Shock wave sensor (Piezo)

•

Omni-

directional switch

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Photo of Fuze Hardware

Electronics

Rotor Safety pin to prevent an

assembly in not safe condition

Mechanical SAD

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Photo of Fuze Hardware

Set back Generator

Plastic part of the SAD

Piezo, pre- assembled

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Project Status– Development phase finished end of 2008

– Fuze qualification successful finished end of March 2009

•

142 functioning / safety trials without failures conducted•

Safety-

and ESD / EMV tests conducted

– System qualification will be finished end of 2009•

Cartridge qualification

•

Safety release for manned firing•

Release of the system into service

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Trial Results– Firing against a 24cm brick wall, impact mode

with time delay

Photo provided by

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Trial Results– Firing against a 8’’

double reinforced concrete

wall, PD mode

Photo provided by

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Trial Results– Firing against an earth and timber bunker, PD

mode

Video provided by

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Trial Results– Firing against a 10mm steel plate, PD mode

Video provided by

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Trial Results– Firing against dismounted infantry, squad in

wedge formation, AB mode

Video provided by

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Trial Results– Firing against dismounted infantry, squad in

wedge formation, AB mode

0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

85 m

50 m

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Trial Results– AB firing (see also following slow motion)

Video provided by

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Trial Results– Summary of all

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JUNGHANS Microtec GmbH

Thank you for your kind attention!

Any questions ?Any questions ?

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Point of ContactJUNGHANS Microtec GmbHUnterbergenweg 10D-

78655 Dunningen -

Seedorf

Martin LEONHARDT (Product Management)Phone:

+49 7402 181 175

Fax:

+49 7402 181 132Email:

[email protected]

dual function fuze dm173 for cartridge 120mm x 570 he · – development phase finished end of 2008...

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