Rigging implications: The current recommendations for Fat2 blades to use the oar length / outboard 6cm shorter than in other blade types makes its gearing ratio and burden factor much lighter. In Fat2, the oar should be set to similar length as other types, or maybe just 2-3cm shorter. Too narrow of a span / long overlap should be avoided. Usually, narrower span is used to increase catch angles, keeping a comfortable finish handle position. Instead, it is better to proportionally decrease inboard / oar length and keep constant overlap, no more than 20cm. Before changing the rigging, it is always good to double check that the desired oar angles could be achieved with rowing technique improvement: optimal leg "compression" and trunk angle at catch, stretching out the arms and shoulders, adequate timing of the oar and rower`s body movement. It is also a good idea to check the pulling angles between the shaft and arm, which should not be less than 60o at the catch. The above conclusions are related to sculling only. More studies on sweep oars are needed.
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