Chapter 3 - Turret TM00358 Rev. A
October 2007 L-3 WESCAM
54 All Rights Reserved
3.1 TURRET
A turret system has three main structural components:
• Lid – a housing for electronics and provides the vehicle interface mounting surface.
• Yoke – an external steerable frame that mates the lid to the gimbal and drive motors rotate the yoke in
azimuth and the gimbal in elevation
• Gimbal – the external dome that stabilizes and steers a sensor platform, measures the line-of-sight, and
protects the internal payload from the environment
Figure 3-1 MX-15i Turret
3.1.1 Lid
The turret’s lid attaches to the aircraft and contains the major electronics used to control the turret and sensors.
The lid assembly contains the following components:
• Gimbal electronics
• Mounting interface to the aircraft
• Installation locator pins
• Mounting holes
• 4 interface connections
Yo k e
Structure
EON
IR
EOW
Gimbal Elevation Rotation
(relative to Yoke)
Yoke Azimuth Rotation
(relative to Gimbal)
Fixed in Azimuth
Lid
Structure
Front
Gimbal
Structure
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