Crutches BSR1 0,75 - 1,21 ft

semi-rigide

Crutches to semi-rigid hull with height between the bottom of the keel and the flat edge of the freeboard from 0,75 to 1,21 ft.
Complete system consist in two crutches, the fastening system and a bag. Total weight : 12,77 lbs. 
Limited offer within the limits of the available stock

How to calculate the heigh between the bottom of the keel and the flat edge of the freeboard ?.

The height is calculated by mesuring bottom of the keel to the top of the V pattern, see drawing

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