Upgrade to FeatherStream Propeller for Zephyr IV 

I've replaced the old 3 Bladed Fixed propeller with a 3 bladed Featherstream propeller. This propeller feathers when not being powered so reduces the drag on the boat. It's a beautifully engineered propeller, almost a work of art.
Tests are ongoing but results to date are very positive. It works well under power, much more predictable in astern where there is negligible prop walk. Under sail, Zephyr IV seems more slippery and average speeds are definitely higher. I'll post more videos after we've had a season together.
Feather Stream is a propeller manufactured by Darglow in Wareham, UK.
www.darglow.co...