Twin Rudders

Lurgurina,  formerly Javaranda,  came into my care with twin rudders. She once had any inboard engine and it's probable that outboard rudders offered prop clearance which was necessary due to her small size.  
I quickly returned her too a single rudder system to keep her clean and simple, and to reduce the number of holes in her sweety transom.  
But during Sail #1 I noticed storage at low speeds was poor, and during Sail #2, that she lacked authority on a broad reach in lovely conditions. 
After recommissioning the second rudder today,  I decided to do some research. 

Twins Rudders Characteristics:
*   Gain steerage at lower speeds due to increased rudder area.  Ref: SAIL MAGAZINE 24/9/2020
*   Were initially fitted to MiniTransat and MiniTranspac boats in the 1990s. Twin rudders allowed for wider transoms which gave increased downwind speed. Ref: Hamble School of Yachting.
* Twin rudders operate in clean water giving "satisfying steering and significant reduction in resistance ... therefore more speed". And "greater reliability due to rudders being smaller and more lightly loaded". Ref: Humphrey's Yachting,  designers of Oyster yachts.

So Twinnies are better.  I'll get her wet as soon as the varnish dries, and maker my own observations.     

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