Prop Information
To enter the prop data, select the Boat button as found at the bottom of the Runlog area of the DatalinkII
software. This action will open the Prop Speed, Prop Slip and Accel Time Runlog pages. Next, select
the Prop Speed tab at the bottom of the screen.
Prop Speed
The Prop Speed channel is derived from the input of Engine RPM, Gear Ratio, Prop Pitch and various
internal mathematical functions. In order for this channel to provide accurate data, it is necessary to
manually insert the Gear Ratio, Prop Pitch and Prop Diameter as found the Prop Data page shown
below.
Prop Slip
The Prop Slip channel is created from the input of GPS MPH and prop speed. Again, insure the PROP
DATA information is completed and the GPS data is functioning correctly, as those inputs contribute to
the accuracy of the Prop Slip channel.
Following the input of prop data, select File, then Save from the Main Menu command area.
NOTE: In order to the Prop Speed and Prop channels to function properly, it is necessary to have a
reliable tach or engine rpm input.
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