[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):

https://preview.redd.it/4bfssiojytyg1.png?width=682&format=png&auto=webp&s=69abca37bd09245aad85fdd7d5a32ceb3a3c32f0

For easier visualization, here are the Diesel data shown in a graph and, just below, the Electric data (X=Throttle):

Diesel:

https://preview.redd.it/gtx4r99iztyg1.png?width=750&format=png&auto=webp&s=bbfcdfe64634b8209e81537839afafcd42bfb099

Electric:

https://preview.redd.it/9iquj82qztyg1.png?width=751&format=png&auto=webp&s=2fa758c86b8918f75cdfdb777cf8f5fb349814b5

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.

One suggestion for the game: please add an option to mark points of interest on the map. This would help track which seed reserves are empty or remember where I’ve already been since the last update. It would also be great to have an option to add notes.

I had 60 oil tanks mounted to the bottom of the boat that just poof disappeared. Oil tanker more 🥺 Oh, and jet ski disappeared as well.

There’s at least two other docks. Likely hundreds of caretakers across the various POIs, where are the other boats?

I half expected a wreck in the other sanctuary docks. I keep hoping for a shipwreck (or two)

I feel like there are so many options for underwater environmental storytelling.

It would be amazing if we could make the boat bigger like extending it or widening it obviously within space of sanctuary dock anyone else hope for this?

Hello, bought this a few days ago and been pretty hooked. Its a great game. However, I am to the point where I created my first human and its telling me to escort him to the exodus. Google says this quest is like end game but from what I read people seem to make more than just one human?

- Should I take the human I created there now or make more?
- It only told me to take one seed from the seed vault. Should i have taken more?
- I have only explored like 10% of the map at this point so it seems weird if this is indeed the end?
- my first human doesn't seem too great.. did i screw up? Says he will be a room roamer lol

Thanks for any help

I came across lets say a problem:

I maxed out the diving skill. I was exploring a bit and "sailed" to some graves for exploring but some graves are deeper than i can dive for example: Dover Grave my question is: is there a way how i can dive deeper so i can Explore them a bit better or do i Stuck at a Max diving from 110m because of pressure

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https://preview.redd.it/rm0vinxkykyg1.jpg?width=1228&format=pjpg&auto=webp&s=24008e556675aff8e58ce0651138ae727ea32d59

https://preview.redd.it/et1ezwhlykyg1.png?width=1658&format=png&auto=webp&s=8002b166c14f1a5bbad154a99b89d9832a420e7f

Anyone else have issues with their boat pulling one way or another? It happens even when the net isn’t deployed (even though that’s on the right side anyway). Does not evenly distributed weight on the ship actually matter? Or is this just a bug?

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