Volvo Penta 3.0GL-B, Operator'S Manual

Page: 41 / 108

39
7741591 / 2003-12
Duoprop ® sterndrive propeller choices
The propellers for the Duoprop drive units have application
and diameter/pitch identification symbols: D0-D9, E2-E5, and
F2-F9. The single number represents the diameter/pitch com-
bination. The identification symbol and the front and rear iden-
tification are stamped on the end of the propeller hubs. When
replacement is required, you may purchase the propellers indi-
vidually, but you must make sure they are the same size and
same shaft (e.g., F7 front and rear). Do not mix or split sets.
1. “D” series aluminum propellers
Volvo Penta’s aluminum propellers are manufactured with a
special aluminum alloy that is highly resistant to the stress and
effects of salt water. The unique design of the Duoprop, with its
two counter rotating propellers, is very important in achieving
optimum performance.
Note! D5, D6, and D7 propellers are recommended
for speeds below 40 MPH. For installations
where “D” series propellers are not recom-
mended, “F” series stainless steel propellers
should be used.
2. “F” series stainless steel propellers
A stainless steel Duoprop set is a very worthwhile upgrade
from aluminum. They offer high performance through thinner
blades, powerful thrust, and virtually cavitation-free running;
and greater torsion strength for higher acceleration.
DPX sterndrive propeller choices
1. “E” series stainless steel propellers
High Performance DPX Duoprop propellers offer excellent,
high speed performance with the precise handling and efficien-
cy that has made the Duoprop famous.
Features
7741591 - Downloaded from www.volvopenta.com 12/03/2014 09:32:39