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Re: Strip: Rudder mechanism and blade
By:JohnAbercrombie
Date: 11/25/2014, 8:22 pm
In Response To: Re: Strip: Rudder mechanism and blade (Palle Dam)


Second method:
About 1-2 % of the underwater lateral area (I assume "underwater lateral area" is the same as the wetted surface)

I'm not sure that assumption is correct.
I think that the underwater lateral area is the area seen 'from the side' - i.e. the lateral projection of the hull.
This is different than the wetted surface.
Imagine a barrel (cylinder) with r=6 and length 50 floating so it is half-submerged.
The wetted surface would be about 1050 units but the lateral area would be only (6 x 50) or 300 units.

Of course, my understanding of this may be incorrect..... ;-)

For reference, the underwater part of the SmartTrack Race rudder on my Thomasson Panthera is 8cm x 20 cm; on my Think EZE surfski it's 13cm x 20 cm

Messages In This Thread

Strip: Rudder mechanism and blade
Palle Dam -- 11/21/2014, 1:50 pm
Re: Strip: Rudder mechanism and blade
Nick Schade - Guillemot Kayaks -- 11/21/2014, 3:35 pm
Re: Strip: Rudder mechanism and blade
Palle Dam -- 11/22/2014, 8:23 am
Re: Strip: Rudder mechanism and blade
John Kroeze -- 11/21/2014, 3:43 pm
Re: Strip: Rudder mechanism and blade
Craig -- 11/22/2014, 1:18 am
Re: Strip: Rudder mechanism and blade
Allan -- 11/22/2014, 1:33 am
Re: Strip: Rudder mechanism and blade
Palle Dam -- 11/22/2014, 9:14 am
Re: Strip: Rudder mechanism and blade
JohnAbercrombie -- 11/22/2014, 1:40 pm
Re: Strip: Rudder mechanism and blade
Bill Hamm -- 11/23/2014, 1:44 am
Re: Strip: Rudder mechanism and blade
Palle Dam -- 11/25/2014, 7:55 pm
Re: Strip: Rudder mechanism and blade
JohnAbercrombie -- 11/25/2014, 8:22 pm
Re: Strip: Rudder mechanism and blade
Palle Dam -- 11/27/2014, 6:56 pm
Re: Strip: Rudder mechanism and blade *PIC*
JohnAbercrombie -- 11/27/2014, 7:56 pm
Re: Strip: Rudder mechanism and blade
Bill Hamm -- 11/30/2014, 12:56 am
Re: Strip: Rudder mechanism and blade
Palle Dam -- 11/30/2014, 9:11 pm
Re: Strip: Rudder mechanism and blade
JohnAbercrombie -- 11/30/2014, 11:36 pm
Re: Strip: Rudder mechanism and blade
Palle Dam -- 12/1/2014, 1:17 pm
Re: Strip: Rudder mechanism and blade
JohnAbercrombie -- 12/1/2014, 2:18 pm
Re: Strip: Rudder mechanism and blade
Bill Hamm -- 12/1/2014, 1:13 am
Re: Strip: Rudder mechanism and blade
Palle Dam -- 12/1/2014, 1:50 pm
Re: Strip: Rudder mechanism and blade *PIC*
JohnAbercrombie -- 12/1/2014, 2:27 pm
Re: Strip: Rudder mechanism and blade
Bill Hamm -- 12/2/2014, 12:41 am
Re: Strip: Rudder mechanism and blade
JohnAbercrombie -- 11/25/2014, 8:28 pm
Re: Strip: Rudder mechanism and blade
Bill Hamm -- 11/26/2014, 5:29 am
Re: Strip: Rudder mechanism and blade
scottbaxter -- 11/21/2014, 4:40 pm
Re: Strip: Rudder mechanism and blade *PIC*
Reg Lake -- 11/24/2014, 12:57 am