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Seahawk Propeller Estimation Form
(Please complete and submit this form)

We are happy to offer selection advice on propellers for sailboats, without obligation.

But please note that the better the information you can provide to us, the better our advice to you will be.

If you prefer to print & fax this form to us then please open the printable version.

As a bare minimum, to be able to calculate sizing, we require all items marked in bold underlined text.

We may respond via one of our Distributors, or Dealers dependant on application, please notify us if this is not acceptable to you.
Make/Design of Vessel
Hull Type

Displacement
(best estimate of actual sailing weight)

 tons / tonnes Lb's Kg's
Waterline Length Feet Metres
Engine Make & Model
Engine CONTINUOUS rated output KW @ RPM
Engine MAXIMUM rated output KW @ RPM
Single or Twin ENGINE
Single or Twin PROPELLERS
Shaft Drive or Saildrive
Gearbox Reduction Ratio
If unsure, please provide all details off the Identification plate on the gearbox		 :1 (eg. 2.3:1)
Shaft Size
Shaft Taper
Shaft Rotation
Counter Rotating Propellers
Description of your current Propeller? Diameter X Pitch

Number of Blades

Max. Speed with this Propeller

Knots MPH KPH

  Any details you can give us in the next 3 boxes will help us to make a recomendation better suited to your current situation.
Please comment on the performance of your current propeller
What do type of use do you typically use your boat for, such as extended cruising, coastal day use, racing etc?
What would you like to achieve by changing your propeller?

Are you interested in a particular type/s of propeller? (select one or more options)

 Feathering Folding Fixed
(NOTE: Export is usually uneconomical outside of Australian region for fixed option)
Name of Yacht
Your Name
Address
State
Postcode (Zip Code)
Country
Phone BH
Phone AH
Fax
Email Address
How did you find us? Search Engine Media Friend Boat Show

Link from other site Other

   
REQUIRED DETAILS for NON-STANDARD SHAFT TAPERS

Please fill in this section for dimensions from the shaft OR the following section for dimensions from your propeller
A: Thread Diameter
B: Taper Small end Diameter
C: Keyway Width
D: Shaft Diameter
E: Taper Length
F: Thread Length
G:Thread Pitch
Above measurements are in
inches mm
 
OR
 
EXISTING PROPELLER HUB DETAILS
A: Taper Length
B: Keyway Width
C: Taper Small end Diameter
D: Taper Large End Diameter
Above measurements are in...
inches mm
     
SHOULD YOU SUSPECT THAT CLEARANCE MAY BE A CONCERN, PLEASE SUPPLY THE FOLLOWING MEASUREMENTS
A: Approx Angle in degrees
B: Tip of shaft to nearest obstruction
C: Centre of shaft to Hull
Above measurements are in...
inches mm
     
PLEASE TYPE BOTH WORDS DISPLAYED BELOW AND THEN PRESS "SEND FORM"
Note: If you get the challenge below wrong, you will be asked to try again,
but the information you have entered above will not be lost.