Navalyze · Ro-pax · Ship

HUCKLEBERRY FINN

IMO: 8618358
Type: Ro-pax ship
Port of registry: Trelleborg
Technical efficiency: EEXI 25.93 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2025: TT-Line GmbH & Co KG

Report year

2025 at a glance

From the 2025 THETIS-MRV report.

Fuel per mile

132.0 kg/nm

Ro-pax median 150.2 kg/nm (−12%)

CO₂ per transport work (pax)

1,021

g CO₂/pax·nm · Ro-pax median 567 (+80%)

CO₂ per transport work (freight)

93.45

g CO₂/t·nm · Ro-pax median 253 (−63%)

Average speed

12.7 kn

Ro-pax median 15.8 kn (−20%)

Fuel per day at sea

40.1 t/day

Fuel consumed

10,358 t

CO₂ emitted

32,640 t

33,149 t CO₂eq incl. CH₄ and N₂O

Distance sailed

78,477 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,200 h

258 days, 71% of the year

Within the ro-pax fleet, 2025

Set against all 408 ro-pax ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel per mileThis ship 132.0 kg/nm · median 150.2 (−12%)

69.3Ranks 144 of 408, lowest first232.4

Average speedThis ship 12.7 kn · median 15.8 (−20%)

12.0Faster than 14% of ro-pax ships22.3

CO₂ per transport work (pax)This ship 1,021.14 g CO₂/pax·nm · median 566.51 (+80%)

66.76Ranks 306 of 408, lowest first1,568.87

CO₂ per transport work (freight)This ship 93.45 g CO₂/t·nm · median 253.18 (−63%)

48.59Ranks 85 of 408, lowest first1,247.19

Middle 80% of shipsMiddle 50%Ro-pax medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports94%
From the EU0%
Into the EU0%
At berth in the EU6%

100% of this ship's CO₂ falls under the EU ETS (32,640 t).

Fuel burned laden

–

Not reported

CO₂ at berth

6.5%

Alongside in EU ports

Methane (CH₄)

0.5 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The Ro-pax median is the middle ship of all ro-pax ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

HUCKLEBERRY FINN
Ro-pax median

120.0130.0140.0150.0160.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

HUCKLEBERRY FINN
Ro-pax median

12.013.014.015.016.017.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (freight), g CO₂/t·nm

HUCKLEBERRY FINN
Ro-pax median

50.0100150200250300

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (pax), g CO₂/pax·nm

HUCKLEBERRY FINN
Ro-pax median

4006008001,0001,2001,400

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−1.2 kn	+4%	−6%	+8%	−7%	1.2 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.8 kn	−1%	+5%	−2%	−9%	0.8 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−1.5 kn	+4%	−6%	−13%	+14%	1.5 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.3 kn	−4%	−5%	−9%	+0%	0.3 kn slower, fuel per mile down 4%; in line with the speed change.
2020→2021	+0.4 kn	+5%	+7%	+5%	−9%	0.4 kn faster, fuel per mile up 5%; in line with the speed change.
2019→2020	+1.0 kn	−5%	+2%	+7%	−1%	1.0 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.2 kn	−7%	−8%	−2%	−12%	Same speed, fuel per mile down 7%; in line with the speed change.

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	TT-Line GmbH & Co KG	10,358	32,640	78,477	6,200	12.7	132.0	–	–
2024	TT-Line GmbH & Co KG	9,284	29,261	72,844	5,229	13.9	127.5	–	–
2023	not published	9,569	30,154	74,222	5,685	13.1	128.9	–	–
2022	not published	10,540	33,213	85,223	5,857	14.6	123.7	–	–
2021	not published	11,990	37,783	93,557	6,292	14.9	128.2	–	–
2020	not published	10,938	34,467	89,218	6,135	14.5	122.6	–	–
2019	not published	10,770	33,936	83,052	6,136	13.5	129.7	–	–
2018	not published	11,756	37,046	84,369	6,179	13.7	139.3	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/pax·nm	Ro-pax median	vs Ro-pax	Rank	Freight, g CO₂/t·nm	Ro-pax median	vs Ro-pax	Verifier	Methods
2025	TT-Line GmbH & Co KG	1,021.14	566.51	+80%	306 of 408	93.45	253.18	−63%	Verifavia	C
2024	TT-Line GmbH & Co KG	1,096.95	546.68	+101%	309 of 404	94.94	232.85	−59%	Verifavia	A
2023	not published	1,201.74	680.04	+77%	314 of 386	94.85	233.94	−59%	Verifavia	A
2022	not published	1,055.87	626.32	+69%	280 of 394	105.07	252.90	−58%	Verifavia	A
2021	not published	1,051.44	815.19	+29%	235 of 377	100.44	226.00	−56%	Verifavia	A
2020	not published	1,156.83	750.91	+54%	245 of 387	106.10	217.49	−51%	Verifavia	A
2019	not published	1,173.65	569.03	+106%	314 of 394	98.29	222.56	−56%	DNV	A
2018	not published	1,328.31	728.92	+82%	259 of 361	99.96	184.05	−46%	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Ro-pax ships are benchmarked on CO₂ per transport work (pax) (TW), in g CO₂/pax·nm, and also per tonne of freight (g CO₂/t·nm freight). CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's ro-pax ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.