Measuring The Spread In A Rowing Shell (Basic Rigging Video)
October 6, 2008 by Mike
Filed under Leverage, Rigging Concepts, videos
If I had to pick the one rigging number I feel is most important to a rower—in terms of the equipment—I would pick the spread.
To me the spread is the foundation that the house is built upon. If it is not correct then regardless of how well the house is built from that point up soon there will be problems, most likely major ones.
For you scullers out there who are getting ready to tune out this post I will say, “Read on!” Scullers need to know how to measure spread also. Although you use span (the distance from one pin to another) the only way to tell if the pins are equal distance from the centerline of the boat, and not skewed to one side or another, is to use spread.
The nice thing about spread is that it is also one of the easiest measurements to find. With a regular tape measure you can take your measurement in a matter of seconds, regardless of the position of the boat (guts-up or guts-down).
The following video will give you the lowdown, and here is a quick step-by-step procedure:
- measure the width of the shell at the rigger position where you desire to measure the spread
- divide that number by 2 (one reason the Metric systems rocks!)
- take that number and place the tape on the gunwale at that mark on the tape
- extend the tape out to the pin
- find your spread mark where the pin intersects the tape
Give the short video a watch for some tips and to see it in action.
Questions? Leave a comment.
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Cheers!






can you post a short video on measuring the spread in a sculling shell?
thx
Hi Mike,
I know ideally having a uniform spread throughout an 8 is the conventional way of setting the pin in order to get the same length arc from each athlete. However my problem lies in the fact that I have one smaller athelete in a boat full of big guys and he is struggeling to get the same length work on at the catch using the same span as the bigger guys.
I was going to adjust his spread (make is less by about 5mm) and reduce his inboard in his oar (by 5mm also) the only thing is should I adjust the overall length of his oar also?
I though I read somewhere that there was a formula for working it out.
your thoughts would be appreciated.
regards,
Duggie.