from:lu02
to:ax07@noaa.gov
subject:test from pedros house again
Lockheed Martin Sippican's XBT system consists of an array of expendable probes, 
with a MK21 USB Data Acquisition Set and a portable, Hand Launcher.
 
The system uses a sea water ground; upon contact with the water, temperature 
data can be telemetered to the ship-board data processing equipment. The nose 
of the probe is precision weighted; probe depth is determined to an accuracy 
of +2%. When the probe reaches its rated depth (a function of ship speed and 
the quantity of wire contained within the shipboard spool) the profile is 
completed and the system is ready for another launch.
 
A precision thermistor is located in the nose of the probe. Changes in 
water temperature are recorded by changes in the resistance of the 
thermistor as the XBT falls through the water. It is capable of temperature 
accuracies of +0.1°C.

Probes
T-4 XBT Probe
T-5 XBT Probe
T-6 XBT Probe
T-7 XBT Probe
T-10 XBT Probe
	
Depth Range  
   460m
 1830m
   460m
   760m
   200m
	
Max Vessel
30 Knots
  6 Knots
15 Knots
15 Knots
10 Knots