GTdrive®

Gun / Turret Drive for Medium Weapons

A critical element for modern combat vehicles is the ability to react

quickly to surrounding conditions. Fastest target sighting, acquisition,

tracing and proper positioning of the main armament is necessary to

obtain a first-round hit. To achieve this, the sights, targeting devices

and weapon systems must be decoupled from the vehicle movements

– they must be stabilized.

ESW delivers essential systems to the Puma, the new tracked infantry

fighting vehicle developed for the German Army. These include the

Gun and Turret Drive System GTdrive®, which, based on the most

modern control technology and digitally configurable, form the basis

for a highly precise stabilization system.

The GTdrive® product family of electrical systems for aiming, stabilization

and slaving of armaments has a wide range of application for reconnais-

sance and combat in light and heavy fighting vehicles. It covers a variety

of drive systems - from spindle to spur gear - to meet the different me-

chanical interfaces. Its high reliability associated with optimized

life-cycle costs gives them the leading edge our customers appreciate.

Stabilization Systems

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General Technical Data

Technical Specifications

Supply Voltage 18 VDC – 32 VDC

Stabilization Accuracy, Typical < 0.3 mrad

Speed Elevation Azimuth

Max. Speed > 45 °/s > 45 °/s

Max. Aiming Speed 20 °/s 40 °/s

Min. Aiming Speed < 0.3 mrad/s < 0.3 mrad/s

Operating Conditions

Temperature According to STANAG 2985 (Cycle A2, B1, C2)

Stabilization and Power Electronics GTdrive®

Function: The purpose of the stabilization and power elec-tronics is the transformation of the power supply into two 3-phase systems. They supply and control the servo motors for alignment, stabilization and slave mode of the turret/ weapon according to the input signals of the sensors, control handles and active sight.

Interface:

▀ Input: power supply, control and sensor signals

▀ Output: elevation-/ azimuth drive

Features:

▀ Digital version with CAN-bus interface

Elevation and Azimuth GTdrive®

Function: The elevation drive aligns the weapon (gun trunnion axis) in vertical direction and the azimuth drive aligns the turret in horizontal direction according to the signal of the stabilization and power electronics.

Interface:

▀ Input: stabilization and power electronics

▀ Output: vertical and horizontal weapon movement

Features:

▀ Brushless PM-synchronous-motor

▀ Spring-preloaded installation

Components: Housing, planetary-gear, servo motor, auxiliary drive

Alternative configurations according to customer requirements.

Technical Data

Technical Data

Dimensions/weight:

Height: 457 mm

Width: 450 mm

Depth: 252 mm

Weight: 49 kg

Performance specifications:

Elevation Azimuth

Max. Current: 550 A 350 A

Continuous Current: 275 A 280 A

Elevation Azimuth

Dimensions/weight:

Height: 373 mm 451 mm

Width: 459 mm 392 mm

Depth: 534 mm 323 mm

Weight: 110 kg 59 kg

Performance specifications:

Max. Revolutions: 27.5 rpm 100 rpm

Max. Torque: 3,350 Nm 550 Nm

JENOPTIK Defense & Civil SystemsJENOPTIK Advanced Systems GmbH l Feldstraße 155 l 22880 Wedel l GermanyPhone: +49 4103 60 - 3033 Fax: +49 4103 60 - 4503E-mail: defense@jenoptik.com I www.jenoptik.com