Erfaring med Eliche Radice foldepropel søges

Mikkel Skovsens billede
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Din bedømmelse: Ingen

Hejsa lure lidt på en foldepropel til min Maxi den jeg har nu er en 3 bladet  fast axel 14/10 RH 

goris udregnings system siger den skal være 14/9½ i tobladet folde til den nette sum af 6500 kr

men faldt over det her mærke i en tysk bix den skulle hvis have klaret sig ok i test men kunne jo være fedt hvis der var nogen som kendte til den ? for prisen fejler da ikke noget hvis jeg kan bruge den samme stigning som jeg har nu så bare  i to bladet folde 390 euro + forsendelse som hvis er 16 euro ca 3020 dk det kunne jeg da bedere forholde mig til en de 6500 gorien koster

http://www.segelladen.de/Inhalt-untergruppen100/versandkosten_int.htm

http://www.nauticexpo.com/prod/eliche-radice-spa/folding-boats-propellers-2-blades-shaft-drive-or-saildrive-22304-53589.html

Folding boat propeller (2 blades, shaft-drive or saildrive)

  • folding boat propeller (2 blades, shaft-drive or saildrive) Eliche Radice S.p.A.
 
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By now everybody knows about the function of the folding blades propeller for sailing hulls is:
TO REDUCING THE PROPELLER DRAG DURING SAILING
(propeller drag is reduced about 90% compared to the traditional two fixed blades propeller).
The opening operation is automatic and is caused by the centrifugal force, increasing according to the engine revolution. In forward gear the pressure on the blades allows a performance equal to the fixed-blades propeller.
During this opening phase a quick acceleration of the engine is not advisable, and we recommend to make it
smoothly and gradually.
Even at low revolutions the centrifugal force is enough to opening the blades.
When the engine is off, a forward speed of 1 to 2 knots generates sufficient water pressure for the blades to close.
Reverse gear has always been the main problem for folding blades propellers.
Mainly due to the water pressure acting in opposition to the blades opening and the lack of a support point for the blades on the hub, only partially open, and the blades float, causing an unstable and insecure condition when maneuvering.

In order to avoid this inconvenience we studied and tested special blade sections that allow the blades to remain fully open during reverse operation with positive maneuvering results. 

 

Annonce