how to measure row boat oars
To determine the correct length oar for your boat measure the distance between the port and starboard oar sockets. then apply the shaw and tenney oar length formula to determine the oar length that will provide the correct 7:18 leverage ratio. this length will provide an oar where 7/25 the length is inboard of the oarlocks and 18/25 of the oar is outboard of the oarlocks.. Note: oar length includes the blade. a well known rule of thumb for figuring oar length is that approximately one-third of the oar will be inboard of the oar mount and two-thirds outboard of the mount. observing this ratio will help ensure that your oars are well balanced for comfortable rowing.. Oarlocks on a boat are simply mechanisms that provide a pivot point for the oars to sit in. once you have the distance between oarlocks you can divide that number by 2 to find the inboard oar length. the inboard oar length is the length of oar that is inside the boat. to find the outboard oar length take the inboard oar length and multiply by 3.. 
how to measure row boat oars Here, in greece, in order to determine the right length of boat oars, we use the following formula: length of oar (cm) = 1/2 the breadth of the boat near the oarlocks (cm) x 3 + 15cm. or length of oar (ft) = 1/2 the breadth of the boat near the oarlocks (ft) x 3 + 1/2 ft. this formula is valid for boats with normal freeboard near the oarlocks..
