Rigging to gearing

Input:
1.	Oar length*:		(cm)
2.	Inboard*:		(cm)
3.	Span/spread:		(cm)
Result:
1.	Gearing:		(g.gg)
2.	Overlap/shoot:		(cm)

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Gearing to length of the oar

Input:
1.	Inboard*:		(cm)
2.	Gearing*:		(g.gg)
3.	Span/spread:		(cm)
Result:
1.	Oar length:		(cm)
2.	Overlap/shoot:		(cm)

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Gearing to handle length

Input:
1.	Oar length*:		(cm)
2.	Gearing*:		(g.gg)
3.	Span/spread:		(cm)
Result:
1.	Inboard:		(cm)
2.	Overlap/shoot:		(cm)

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Standard boat speed calculator