March 2018
rapidCAST User’s Guide
Page
6
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Figure 4.
Probe Assembly Overview
Mechanical Requirements
Mounting Requirements: The ideal deployment location is in the center of the vessel, with deploy-
ment directly over the aft rail, but other locations may be possible. The swivel base should be mounted
within 24 inches of the aft rail. Oceanscience can provide designs for mounting options if necessary. In-
stallation of a serial cable running from the rapidCAST electronic control module to the survey PC is re-
quired. As the probe uses wireless Bluetooth telemetry, no cabling is required for data download.
The figure below depicts mounting and cable clearance requirements. Routing of the winch power and
data cables must be taken into consideration. The bolt circle should be oriented as shown below because
the swivel base has built in stops to control the rotation of the winch, see Figure 6. The mounting platform
should be able to withstand a moment of 70ft-lbs with little to no deflection. Below the mounting plat-
form, a 3.0 inch clearance is required for cable routing. Straight down cable routing is shown in RED.
Sideways cable routing is also possible if there is a minimum 3.0 inch clearance, shown in BLUE.