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Rudder cavitation or stalling #32631
04/26/04 09:01 AM
04/26/04 09:01 AM
Joined: Jul 2003
Posts: 121
Valencia - Spain
aestela Offline OP
member
aestela  Offline OP
member

Joined: Jul 2003
Posts: 121
Valencia - Spain
Hi all,
Don't know if it happens to other people but, sometimes, going upwind, two-trapped, the rudder seems to go crazy, the boat gets slooow and we end finally into irons.
Any tips on how to avoid it, or at least how to recover from
it?

aestela
H16 157597

-- Have You Seen This? --
Re: Rudder cavitation or stalling [Re: aestela] #32632
04/26/04 11:21 AM
04/26/04 11:21 AM
Joined: Jun 2001
Posts: 123
Syracuse, NY
deq204 Offline
member
deq204  Offline
member

Joined: Jun 2001
Posts: 123
Syracuse, NY
First off is how to prevent it – To prevent this – you need to rake your rudders under the boat as much as possible. Based on your sail #, you have a newer boat with adjustable rudder cams (a hex bolt on top of the rudder casting).

Second – To relieve the pressure while sailing – Get back and sheet out – Get back on the boat to sink the rudders
and
Sheet out (a little at a time until the pressure on the rudders is relieved).

Hope this helps

DEQ204
WWW.Fleet204.com
Hobie 16 North American Championships

Re: Rudder cavitation or stalling [Re: aestela] #32633
04/26/04 11:33 AM
04/26/04 11:33 AM
Joined: Jul 2003
Posts: 324
South Florida
SOMA Offline
enthusiast
SOMA  Offline
enthusiast

Joined: Jul 2003
Posts: 324
South Florida
Aestela,

If by "going crazy" you mean the rudders jerk back and forth, then you may have them raked too far forward. You may actually need to rake them backwards. Too much forward rake actually makes the rudder more sensitive and this may be your problem. You need to clarify what you meant by going crazy.


Fred F (ex Hobie 18)
Re: Rudder cavitation or stalling [Re: SOMA] #32634
04/29/04 01:43 AM
04/29/04 01:43 AM
Joined: Jul 2003
Posts: 121
Valencia - Spain
aestela Offline OP
member
aestela  Offline OP
member

Joined: Jul 2003
Posts: 121
Valencia - Spain
By going crazy I mean mainly noisy and turbulent flow. The perceived steering lose may be produced by the boat going very slow or stopping.


Moderated by  Damon Linkous 

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