Owner`s manual
30
www.cannondownriggers.com
Blowback
Simply stated, blowback is what hap-
pens to the downrigger weight when you pull it through
the water behind your boat. As your speed increases,
so does the horizontal distance between the weight
and your downrigger. The faster you go, the farther the
weight is behind you. The farther the weight is behind
you, the shallower the weight is.
The following charts provide you with
blowback information for three sizes of Cannon down-
rigger weights pulled at three different speeds with no
lures attached and with no current. Current drag, water
salinity and the use of non-Cannon products will affect
your actual trolling depth.
As an example, the fi rst chart shows that if you are troll-
ing at 4 MPH with an 8 pound weight and you have 100
FT. of cable in the water with no current; the downrigger
ball is actually at a depth of about 80 FT.
12-Lb. Weight at 2, 4, and 6 MPH
2 MPH
4 MPH
6 MPH
Actual Depth of Weight (ft.)
Amount of Cable in Water (ft.)
4 MPH
6 MPH
Amount of Cable in Water (ft.)
ActualDepth of Weight (ft.)
2 MPH
8-Lb. Weight at 2, 4, and 6 MPH
2 MPH
4 MPH
6 MPH
Actual Depth of Weight (ft.)
Amount of Cable in Water (ft.)
Blowback Charts
10-Lb. Weight at 2, 4, and 6 MPH
Blowback Calculations