Recently following a thread on RSR I did some research into the three major oar manufacturers and what they say about how their oars and sculls perform in a deflection test. when a 10kg weight is hung from the neck of the blade. This gives a comparison of the relative stiffness of each design.
|Scull & Oar Deflection tests|
|4.55 +/- .25cm*||3.95 +/- .25cm*|
|Dreher||3.4 cm||2.9 cm||2.4 cm|
|3.85+/- .25cm*||3.25 +/- .25cm*|
|Dreher||n/a||3.6 cm||3.0 cm|
|S2 scull||6.5 – 8.5 cm Deflection at Tip|
|S3 scull||6.9 – 9.0 cm Deflection at Tip|
|M2 Sweep||5.0 – 6.5 cm Deflection at Tip|
|* Stiffness is measured in terms of
the deflection in the oar when a 10kg weight is hung from the neck
|** Croker measures deflection at the
tip not the neck.