The SSQ‑36B is a NATO A‑size expendable bathythermograph manufactured for the U.S. Navy. It provides vertical temperature profiles of the ocean layer for research and anti‑submarine warfare, letting crews evaluate how local seawater temperature affects sonar propagation and acoustic range prediction.
A thermistor in the probe measures the change in seawater temperature as it descends from the surface, and the data is transmitted by RF to the launch aircraft for display as temperature against depth. The buoy profiles to 800 meters and selects one VHF transmitter channel out of 99 available.
KEY FEATURES
Weight
Sonobuoy Launch Container
8.53 kg (18.8 lbs)
LAU-126/A
RF Transmitter Power Output
RF Transmitter Operating Frequency
Sensor Temperature Range
Temperature Accuracy
Probe Descent Rate
Operating Life
EFS Selection
Scuttle
Launch Altitude
Launch Speed
Shelf Life
0.25 W minimum
99 Channel Selectable (136.000 to 173.500 MHz)
0 to 35°C
± 0.55°C
1.5 m/s (5 ft/s)
12 minutes maximum
RF Channel
Automatic
12 to 9144 meters (40 to 30000 ft)
0 to 370 KIAS
5 years in sealed container
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