St Ayles Skiff Oars and Oarlocks
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Decisions we need to make for the new design

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colinmuirhead
Don Currie
Rory Cowan
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Decisions we need to make for the new design - Page 2 Empty Re: Decisions we need to make for the new design

Post by topherdawson Sun Jan 08, 2017 10:07 am

There is a lot going on in the interaction between rower, blade and water. Many rowers have not tried more than one blade.

Many of us have rowed with more than one type of blade, and if there is potentially a blade out there which would suit the class better, it is our duty to find it.

Experimenting with blades should lead to more knowledge, and as Rory has already pointed out we need to test the most promising oars, oarlocks and blades on actual club rowers, not just oar nerds.

Rory has made an assessment form for rowers, in which they rate their rowing experience from 1 to 10 with reasons. This is the link to it:
https://www.dropbox.com/s/rmyrifcos3j5o93/St%20Ayles%20Skiff%20Oar%20Rating%20Scale%20%20%20%20%20%20Version%202.docx?dl=0

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Decisions we need to make for the new design - Page 2 Empty First setup with inrigger blocks

Post by topherdawson Thu Feb 16, 2017 9:30 pm

Don Currie and I decided to proceed with 4.3m oars on the basis that if the pins in the middle of the boat at 2 and 3 were moved inboard by 70 to 80mm, the oar could be made nearly 300mm shorter and still avoid clashes at a gear of 3.
Decisions we need to make for the new design - Page 2 Pin_se11
This is the new block and pin alongside the old pin hole.

This is our boat with new and old oars at Bow and 3, in the top gear (3.0) position. Decisions we need to make for the new design - Page 2 Number10
At the right of the picture you can see the inboard block and pin for oar 2.
Decisions we need to make for the new design - Page 2 Number12
Decisions we need to make for the new design - Page 2 Number11
It will be seen that at bow the oars are very similar, although the shorter blade on the new oar allows it to be shorter overall (4.3m) while keeping the centre of effort in the same place.

But at 3 the inboard block for the pin allows the oar to be a lot shorter (also 4.3m) than the old oar, the inboard brings the handle to the same place (or even slightly better) There is still plenty of clearance under the oars, which in other boats is filled with wear strips and plates.

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