When I was thinking hard about building a Northeaster Dory, one of the things I really wanted to know was how the boat performed -- both when sailed and rowed. I found general discussions that convinced me it was the right boat for me, but I did not find any hard data. To rectify that in at least a partial way, I am providing a couple of links that show my GPS data for a recent row and sail.

The row: 

https://www.strava.com/activities/495944039/analysis

And the sail:

https://www.strava.com/activities/496438624/analysis

During the first two miles of the "Post-ride rowing," I was taking it easy -- just cruising along at easy hull speed (3-4 mph). But if you move your cursor to the 2.1 mile mark, you can see where I amped it up to a bit of exercise (4-5 mph). I think I could get the boat going even faster, but I'd really be breaking a sweat.

The sailing data is for a dory with the lug rig . . . and a lug rig that I may need to tune just a little bit more. You can see that I was able to beat upwind. Then I dropped the sail to make an adjustment. During several reaches back toward the bay, the boat reached speeds in the 6-8 mph range.

I find the Northeaster Dory a spritely joy under oars and a safe, easily-controlled sailboat. What a delight!