[English is not my first language, so I used IA for write this post. Sorry in advantage for erros]
TLDR - For both engines, max throttle is usually inefficient because the last few percent of speed costs a large amount of extra energy.
The game seems to use a realistic efficiency curve: the final throttle range gives minimal speed gains for a large increase in consumption.
INTRO
I tested the boat engine data and compared Diesel and Electric propulsion separately.
Here is my table organized into columns with: Throttle; Diesel (speed and consumption); Electric (speed and consumption):
For easier visualization, here are the Diesel data shown in a graph and, just below, the Electric data (X=Throttle):
Diesel:
Electric:
Diesel Analysis
For this analysis, I used each engine’s maximum speed as 100% and maximum consumption as 100%. This helps show where speed gains stop being worth the extra fuel or battery drain.
The goal was to find the best balance between high speed and good efficiency, and identify where consumption increases sharply for little speed gain.
| Throttle | Speed (Km/h) | Speed % | Speed Loss | Consumption % | Savings |
|---|---|---|---|---|---|
| 15% | 11 | 29.7% | 70.3% | 8.8% | 91.2% |
| 30% | 18 | 48.6% | 51.4% | 23.6% | 76.4% |
| 50% | 25 | 67.6% | 32.4% | 32.1% | 67.9% |
| 64% | 30 | 81.1% | 18.9% | 44.2% | 55.8% |
| 78% | 34 | 91.9% | 8.1% | 46.6% | 53.4% |
| 85% | 36 | 97.3% | 2.7% | 67.1% | 32.9% |
| 93% | 37 | 100% | 0% | 80.7% | 19.3% |
| 100% | 37 | 100% | 0% | 100% | 0% |
The best Diesel operating point appears to be 78% throttle. At this level, you still get 34 Km/h, which is 91.9% of max speed, while using only 46.6% of max fuel consumption. That is a very strong efficiency zone.
Another solid option is 64% throttle, giving 30 Km/h with much lower fuel use.
The worst zone is 93% to 100% throttle. You gain zero speed (still 37 Km/h), but fuel use rises sharply from 80.7% to 100%. Full throttle seems wasteful.
Electric Analysis
| Throttle | Speed (Km/h) | Speed % | Speed Loss | Consumption % | Savings |
|---|---|---|---|---|---|
| 15% | 7 | 29.2% | 70.8% | 10.5% | 89.5% |
| 30% | 11 | 45.8% | 54.2% | 19.2% | 80.8% |
| 50% | 16 | 66.7% | 33.3% | 33.1% | 66.9% |
| 64% | 19 | 79.2% | 20.8% | 45.3% | 54.7% |
| 78% | 21 | 87.5% | 12.5% | 59.3% | 40.7% |
| 85% | 22 | 91.7% | 8.3% | 67.4% | 32.6% |
| 93% | 24 | 100% | 0% | 80.8% | 19.2% |
| 100% | 24 | 100% | 0% | 100% | 0% |
The best Electric efficiency zone seems to be 64% throttle. You get 19 Km/h, which is nearly 80% of max speed, while using only 45.3% of max battery consumption.
If you want more speed without going inefficient, 78% throttle is also very good, reaching 21 Km/h (87.5% of max speed).
Like Diesel, the worst range is 93% to 100% throttle. Speed stays at 24 Km/h, but battery consumption jumps from 80.8% to 100%.
OBS: I’m not a mathematician or an engineer, just genuinely curious. There are probably some errors and overlooked variables in these observations.
If anyone has tested range per tank or total battery runtime, I’d love to compare results.