| What
is Pitch? |
Pitch
is the distance that a propeller would advance in one revolution.
The two kinds of pitch are constant or true pitch, which means the
pitch is constant throughout the blade, and progressive, which starts
lower at the leading edge and increases to the trailing edge. Pitch
is measured in inches.
|
| What
is Rake? |
Rake
is the angle of the blade to the center of the shaft and is measured
in degrees. Most performance propellers are angled aft to give boats
more lift without ventilating the propeller. The two common types
of rake used in performance boating are parabolic and straight rake.
Parabolic rake is an off-center rake line that gives the blade an
appearance of a spoon-like effect. Straight rake is basically flat
across the blade.
|
| What
is cupping? |
Cupping
is a slight curl on the trailing edge to reduce ventilation and also
gives more lift capability. It increases the overall pitch ½
" to 1".
|
| What
is the application for the HP4? |
The
HP4 works great on Bass Boats, Performance Boats and Stern Drives.
It carries a load better than the three-blade propeller, so most of
the heavier boats will find it performs great. Bass Boats such as
Triton, Champion, Skeeter, Ranger, Bass Cat, Gambler, Charger and
others will find it has excellent lift capabilities and fantastic
speed. The prop works great on "cats" with stern drive power,
such as the Eliminator Daytona Series, Stoker Sport Tunnel and others.
It also works well on step bottom "V" hulls with stern drive
power.
|
| What
is the application for the RE Series? |
This
is a great propeller for lighter weight boats such as Allisons, Bullets,
STVs, Cougars, Hydrostreams, Stokers and others. It will ventilate
on take-off and provide good lift and fantastic top-end speeds. It
holds the world record for the fastest Bass Boat at 116.594 MPH on
an Allison.
|
| What
is the application for the RE 4 Series? |
This
propeller will give you a good hole shot, but will ventilate on take-off
with great midrange and excellent top end. The mid range performance
with this prop is a lot quicker than the RE and provides great stability.
|
| What
is the application for the O.S. Series? |
This
is an outboard propeller designed for maximum speed with minimal bow
lift. It is actually a transom-lifting prop. Usually "cats"
such as Skaters, Talons, Eliminator Daytonas, Cougars and others with
twin and triple motor applications work well with this prop. For single
engine applications on boats such as: STVs, Allisons, Hydrostreams
etc. this propeller is a good choice with one person and an extremely
light load.
|
Propellers
and set up are extremely complicated and each situation is unique.
What will work and perform well for one customer will not always work
for another due to the number of variables. We have tried to answer
some of the common questions that people have and realize we have
not covered everything. For an exact selection for your specific situation
talk to John Mazar who has over 30 years experience and will help
you make the correct propeller purchase for your boat.
Please call 636-343-9911 between the hours of 8am - 4:30pm CST, Monday
- Friday.
(636)
343-4864 fax
|
