Heres a better graph. High watts where 2076, approaching 3HP. Again this run was on 5s 5Ah Turnigy 25C. This was almost a full run, was cut short by me getting a little crazy and I flipped it for the first time. There where a lot of wide open running here, I was doing laps at the end just before flipping and that was constant full. I'm surprised at how much the load varied at wide open. Anyhow, this should be a good indicator of how hard a boat is on lipos! You may not get the high peaks like a land based vehicle but the average Amp draw is double what my RC8T sees in a race.
Not sure what's up with the timeline on the bottom of the graph but the run was at least double that, it was about a 7-9 minute run