SPW GmbH - Yacht Propeller | Feathering Propeller| Folding Propeller | Yacht Equipment

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Request/Order 
*First and last name: Date:
Company: *Telephone:
*Street: Fax:
*Postal code + place: *E-mail:
*Country: How did you find us?
* =required
Required Propeller(s)?
Fixed Propeller:  2Bl.  3Bl.  4Bl.  5Bl.
VARIPROP:  2Bl.  3Bl.  4Bl.  
VARIFOLD:  2Bl.  3Bl.  4Bl.  
VARIPROFILE:  2Bl.  3Bl.  
Units  mm  Inch
Boat Manufacturer Model
Year of constuction: Saildrive or Shaft Drive
Length overall: *Length Waterline:
Beam Waterline: Draft:
Displacement unloaded: Displacement loaded:
Speed at max RPM:  kn. at     max RPM Cruising Speed:  kn. at     RPM
* =recommended  
Engine data
*Number of Engines
*Manufacturer *Model number
*Max. rated RPM Engine hp/kW:
*Type of Gearbox     hydraulic mechanical
*Ratio  forward       backward
Shaft diameter" (D) Shaft length (L)
* =recommended  
European ISO-Norm (ISO4566) 1:10  Yes No
SAE American Standard 1:16 Yes  No
(If not, please give the following measurements)
Taper measured at Propeller Shaft
Largest diameter D
Largest diameter d
Taper length L
Key width W
Thread diameter M
Thread pitch S
Present propeller and boat
Type of propeller Blades
Diameter: Pitch:
Direction of rotation:  Lefthand    righthand    lh/rh
Type of boat  
Hull Type Keel characteristics
Additional Data (Not required if Saildrive)
 
Pic.1  (C)    (N)    (G)

Pic.2  (C)    (E)    (F)

 (G)    (H)    (I)

 (J)    (K)    (N)

Comment to the propeller-calculation:

Please fill in this information-list carefully because the data stated by you give us the basis for the propeller calculation. We point out that a calculated propeller is always only a recommendation! 

A guarantee that the calculated propeller is the "right one", cannot be given since the computer calculation is only a theoretical optimum. Only the test drive shows actual results. If these should not correspond to the expected optimal conditions, an adjustment of the propeller should be made. 

Consequential expenses like Hauling, Assembling, Installing and Freight charges etc. are not paid by SPW!
In this field please state the problems you are experiencing with your current propeller.

Many thanks for your enquiry.

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Conception, design and programming: OceanMedia & Services GmbH, Bremerhaven / Bremen / Hamburg