Lightweight Shipboard Tilt Unit – Single
Weight: 856 lbs
Height: 39″ raised, 26.25″ lowered
Depth: 22″ vertical, 36″ @ 90 degrees
Tilt Angle Presets: 90°, 105°, 115°
Operating Speed: 90° in 19.6 seconds (powered)
Motor: 2 HP 440 VAC, 3 Ø Type 1 Shipboard
View Product Specs PDF | Request Quote
Not finding what you're looking for? We can custom-build antennas to your exact specifications.
Contact us here or call 1-940-325-3301 for more information.
Additional Product Info
Tilt Units For Mounting A Single HF Whip Antenna
The OA-9243A (V) 3/SR & OA-9242A (V) 3/SR series shipboard tilt units are modular electromechanical systems for lowering and raising single shipboard communication antennas. These units and the dual antenna variants (OA-9242A (V) 4/SR & OA-9243A (V) 4/SR series) have over 90% commonality of components.
The drive element is a two-stage planetary gearbox. The OA-9242A (V) 3SR uses a 2-horsepower brakemotor, while the OA-9243A (V) 3SR uses a 1-horsepower brakemotor. The electrical controls are located in the pedestal for local operation, while an optional remote control will operate up to three units at a maximum of 1,200 feet away. A manually operated handcrank provides emergency control in the event of electrical failure. Tilt angles may be preset to any angle from vertical through 115, and powered rotation from vertical to 90 horizontal takes only 20 seconds. All units may be tilted inboard to expedite antenna maintenance, removal or installation. Converting from single to dual antenna configuration is accomplished by installing another support arm. Provisions for mounting antenna tuners and couplers are available in rotating elements, permitting antenna feedwire lengths to be kept to a minimum. Compression pads are activated at vertical and horizontal limits to reduce shock and vibration loads from being transmitted to the rotating elements. Cam operated limit switches control the vertical and horizontal positioning. An overtravel limit switch removes all power to the drive motor in the event of limit switch failure. The OA-9242A (V) 3/SR & OA-9242A (V) 4/SR (HEAVY DUTY) units are designed to withstand loads of 1,000,000 in/lb, and are normally used where green water loads are a major concern. Manual crank versions are also available.
Optional equipment includes the C-11549 remote control unit and ID-2371 remote indicating unit.
New, Refurbish and Spare parts list for this model may be obtained by downloading the product information file.
||1 Hp, 440 VAC, .3 Phase type 1 Shipboard
|Static Load Capacity, LW
||1,000,000 In / Lb
|Dynamic Load Capacity, LW
|Depth, Vertical Position
|Depth, 90 Degree Position
|Manual Operating Speed
||90 Degree = 132 Turns
|Powered Operating Speed
||90 Degree In 19.6 Seconds
|Tilt Angle Presets
||90, 105, or 155 Degrees
||Haze Grey Powder Coat
||MIL-C-2212 Size 1
||MIL-STD-810, Method 501 & 507
||MIL-STD-810, Method 510
||MIL-STD-810, Method 521