Use the applet below to predict the optimal 2000m time for yourself in a single scull. The calculation is based on the assumption that an 90kg oarsman, who rows a 2k erg in exactly 6 minutes, has an optimum 2000m time of 6 minutes and 50 seconds. We assume that boat speed is proportional to the cubed root of the total power and inversely proportional to the total weight raised to the power two-ninths. We also assume that power on the ergo is proportional to speed cubed.