Dotan Maritime Enterprise (DME) is a Latvian sailing-tech company founded in 1992 by Dr Leonid Chernin, maritime engineer (PhD) and active sailor. Since day one, we’ve been dedicated to developing and producing innovative kick-up rudder systems for dinghies and catamarans — improving performance, safety, and ease of handling.
Our rudders are known for their patented kick-up mechanism — no ropes, no springs, no rubber bands — and have earned a reputation for durability and simplicity across generations of sailors.
Over the past 30+ years, we’ve delivered to more than 50 countries — from New Zealand to Norway. Many customers return to us after 15–20 years for spare parts or replacements — a clear sign of long-term trust and product longevity.
Launched new catamaran rudder set with eco‑friendly packaging and compact shipping design.
Introduced budget plywood rudder blades for Optimist — ideal for sailing schools and training centers.
Developed high-performance Optimist daggerboard & rudder combo for youth sailing.
Dotan rudders now used in over 50 countries worldwide.
Received the Latvian Ministry of Economics “Export and Innovation Award.”
Granted multiple international patents for our unique kick-up system.
Company founded and first prototype rudder created.
At Dotan, we combine academic engineering with real-world sailing experience.
Our mission is simple:
To help sailors enjoy the water with smart, reliable, and long‑lasting equipment.
Optimized Rudder for the Optimist Class Our engineers have designed a rudder specifically for promising racers in the Optimist class. The unique construction of this rudder will help future champions achieve outstanding results faster. Advanced Manufacturing Technology The rudder is produced using advanced technology that combines high pressure with thermal shock. This method significantly increases the compression of the fiberglass laminate compared to traditional vacuum molding techniques. Key Benefits of High Compression: Layers Form a Monolithic Structure: The fibers of each layer bond seamlessly with the adjacent layer, creating a uniform material without weak points. Improved Strength, Rigidity, and Durability: The rudder demonstrates exceptional resistance to loads and wear. Enhanced Resilience: Its ability to quickly return to its original shape after stress ensures superior flexibility, especially critical when tacking in waves. Included Components The set includes a rudder and rudder fittings, ensuring full readiness for installation and use. Ideal Profile and Hydrodynamics A smooth, high-quality surface finish on the rudder reduces water resistance, increasing speed. The cross-section of the rudder is based on the NACA 0009 hydrodynamic profile, ensuring superior stability and maneuverability. Compliance with International Standards The rudder is fully compliant with the latest IODA rules, ensuring its suitability for international regattas.
