Rudder Construction

Rudder features
Rudder Construction

Rudder Construction

Rudder Drawing

Rudder Head 25 Assembly – For Blade Thickness 25 mm

Description:
This diagram provides an exploded view of the Rudder Head 25 assembly, specifically designed for a rudder blade with a thickness of 25 mm. It highlights all essential components, including the tiller housing, gudgeons, locking mechanism, coulisse system, and necessary fasteners. Each part is clearly labeled with detailed specifications to ensure accurate installation and maintenance.

Rudder Head 20 Assembly – For Blade Thickness 20 mm

Description:
This diagram provides an exploded view of the Rudder Head 20 assembly, specifically designed for a rudder blade with a thickness of 20 mm. It highlights all essential components, including the tiller housing, gudgeons, locking mechanism, coulisse system, and necessary fasteners. Each part is clearly labeled with detailed specifications to ensure accurate installation and maintenance.

Rudder Head 14 Assembly – Designed for 14 mm Blade Thickness (Optimist Class)

Description:
This diagram offers a detailed exploded view of the Rudder Head 14 assembly, specifically engineered for rudder blades with a thickness of 14 mm, ideal for Optimist sailboats. It showcases all key components, including the tiller housing, gudgeons, locking mechanism, coulisse system, and essential fasteners. Each component is clearly labeled with precise specifications to facilitate easy installation and reliable maintenance.

Rudder Description

Part №	Description
Rudder assembly 25
001 R 25 - BL1	Rudder 25, fiberglass blade 1
002 R 25 - BL1A	Rudder 25, fiberglass blade 1A
003 R 25 - BL2	Rudder 25, fiberglass blade 2
004 R 25 - BL7	Rudder 25, fiberglass blade 7
005 R 25 - BL/FD	Rudder 25, fiberglass blade FD
Rudder assembly 20
010 R 20 - BL1	Rudder 20, fiberglass blade 1
011 R 20 - Bl2	Rudder 20, fiberglass blade 2
Rudder assembly 14
021 R 14-P/BL-W	Dotan's Kick-Up Rudder for Optimist, racing version, with a wooden blade, all the fittings and tiller.
021 R 14-8/BL-W	Dotan's Kick-Up Rudder for Optimist, club version, with a wooden blade, all the fittings and tiller. The gudgeon have holes of 8 mm.
024 R 14-P/BL-FRP	Dotan's Kick-Up Rudder for Optimist, racing version, with a fiberglass blade, all the fittings and tiller.
025 R 14-8/BL-FRP	Dotan's Kick-Up Rudder for Optimist, club version, with a fiberglass blade, all the fittings and tiller. The gudgeon have holes of 8 mm.
027 R14-BL CADET	Rudder 14- Cadet
028 R 14-BL2	Rudder 14/BL2
Rudder Head assembly
030 RB 25/8AS	Rudder head 25/AS with holes Ø8mm
030 RB 25/10AS	Rudder head 25/AS with holes Ø10mm
031 RB 25/P8AS	Rudder head 25/AS with pins Ø8mm
031 RB 25/P10AS	Rudder head 25/AS with pins Ø10mm
032 RB 20/8AS	Rudder head 20/AS with holes Ø8mm
033 RB 20/P8AS	Rudder head 20/AS with pins Ø8mm
034 RB 14/P6AS	Rudder head 14/AS with pins Ø6mm
035 RB 14/8AS	Rudder Box 14/AS with holes Ø8mm
Rudder Box
040 RB 25/8 or 10	Rudder head 25 with holes Ø8mm or Ø10mm
041 RB 25/P8 or 10	Rudder head 25 with pin Ø8mm or Ø10mm
042 RB 20/8	Rudder head 20 with holes Ø8mm
043 RB 20/P8	Rudder head 20 with pins Ø8mm
044 RB 14/P6	Rudder head 14 with pins Ø6mm
045 RB 14/8	Rudder head 14 with holes Ø8mm
Tiller Housing assembly
050 TH 25AS	Tiller Housing 25 asembly
051 TH 20AS	Tiller Housing 20 asembly
052 TH 14AS	Tiller Housing 14 assembly
Blade
060 BL 25/1	Fiberglass blade 25-1
061 BL 25/1A	Fiberglass blade 25-1A
062 BL 25/2	Fiberglass blade 25-2
063 BL 25/7	Fiberglass blade 25-7
064 BL 25/FD	Fiberglass blade 25-FD
065 BL 20/1	Fiberglass blade 20-1
066 BL 20/2	Fiberglass blade 20-2
067 BL 14/Q-W-PA	Wooden blade for Optimist with polyamide adapter.
068 BL 14/Q-W-PC	Wooden blade for Optimist with with transparent adapter
069 BL 14/Q-FRP	Fiberglass blade for Optimist
070 BL 14/2	Fiberglass blade 14-2
071 BL 14/C	BL 14/Cadet plywood
Gudgeon
080 G 25R/8 or Ø10	Gudgeon R25 hole Ø8 or Ø10
081 G 25R/P8 or /P10	Gudgeon R 25 pin Ø8 or ØP10
082 G 25/8 or Ø10	Gudgeon 25 hole Ø8 or Ø10
083 G 25/P8 or /P10	Gudgeon 25 pin Ø8 or ØP10
084 G 20/8	Gudgeon 20 hole Ø8
085 G 20/P8	Gudgeon 20 pin Ø8
086 G 20/P6	Gudgeon 20 pin Ø6
087 G 14/8	Gudgeon 14 hole Ø8
088 G 14/P6	Gudgeon 14 pin Ø6
Coulisse
090 C 25	Coulisse 25
091 CB 25	Coulisse -Bolts 25
092 CN 25	Coulisse -Nut 25
093 C 20	Coulisse 20
094 CB 20	Coulisse -Bolts 20
095 CN 20	Coulisse -Nut 20
096 C 14	Coulisse -14
Details
100 D-AD20/PA	Adapter 20 Polyamide
101 D-AD20/PC	Adapter 20 Transparent
102 D-L25	Lock 25
103 D-L20	Lock 20
104 D-ER	Elastic silicone rubber
105 D-LP	Lock plate
106 D-BU	Bushing
107 D-EC	End cup
108 D-RO	Roller
109 D-RV	Rivet
110 D-WA	Washer
Tiller
201 T-0.7	Tiller Ø 28x1.5x0.7 m
202 T-0.8	Tiller Ø 28x1.5x0.8 m
203 T-0.9	Tiller Ø 28x1.5x0.9 m
204 T-1.0	Tiller Ø 28x1.5x1.0 m
205 T-L*	Tiller Ø 28x1.5xL* m
Bolts
210 B-M6/53	Bolt M 6x53+Nut Nylstop M 6
211 B-M6/45	Bolt M 6x45+Nut Nylstop M 6
212 B-M6/40	Bolt M 6x40+Nut Nylstop M 6
213 B-M5/20	Bolt M 5x20+Nut Nylstop M 5
214 B-M5/16	Bolt M 5x16+Nut Nylstop M 5
215 S-M4/12	Screw

Advantages of the Dotan Rudder

Instant Rudder Control
The Dotan kick-up system allows the blade to be raised or lowered in seconds with a single movement. Essential for smooth departures and returns, even in challenging conditions.

Durable Housing
Made from corrosion-resistant composite materials, the rudder housing ensures reliability and stability, even in extreme situations.

Lightweight and Strong Blade
Combining advanced thermal shock technology and high pressure, the blade offers reduced weight and excellent durability. A hydrodynamic profile ensures smooth sailing.

Universal Adjustment
Easily adaptable to various boats and catamarans, the rudder’s simple installation makes it suitable for users of all experience levels.

Obstacle Protection
The blade automatically kicks up upon collision with obstacles like rocks or logs, preventing damage. It returns to position in seconds, maintaining control and stability.

Why Choose Kick-Up Rudders from Dotan?

Learn more about the Dotan rudder mechanism

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