KONRAD 560 - 560 Stern Drive Description

The Konrad 560 Twin Prop System is engineered
to reduce stress on the gears using dual propeller
technology, providing a reliable, durable stern drive
unit. With counter rotating propellers, the 560 reduces
propeller roll, which increases efciency and control.
The Konrad 560 stern drive features two, one
piece propeller shafts that accommodate two
stainless steel propellers. The specially designed
propellers have one blade conguration: 3 blades
on the forward prop and 4 blades on the rear
prop. The propeller pitches are manipulated on
each application to meet the performance criteria.
The maximum diameter of the propellers in the
Konrad 560 is 16 in. (40.6 cm) for the forward
prop, and 15.25 in. (38.7 cm) for the rear prop.
Commercial Performance
Maximum recommendation:
755 Nm (557 lb. ft.) of torque for diesel
or gas applications. Maximum operation:
500 hours per year for planing type
hulls of highly intermittent operation.
Gross weight to horsepower less than
12.2 kg/kw (20 lbs./hp). This clas-
sication includes light commercial
charter/sport activity craft, patrol and
intercept boats. Standard warranty.
560 Stern Drive Description
560 Classications
Recreational Performance
Maximum recommendation:
1000 Nm (738 lb. ft.) of torque for diesel
or gas applications. Maximum operation:
250 hours per year for planing type hulls of
highly intermittent operation. Gross weight
to horsepower less than 12.2 kg/kw (20
lbs./hp). This classication includes pri-
vate, non-commercial, non-charter, sport/
leisure activity craft. Long range pleasure
cruisers, sport shing charters and com-
mercial service craft are NOT in this ser-
vice classication. Standard warranty.
500 SERIES INSTALLATION MANUALJULY 2016 PAGE 3