Navalyze · Vehicle carrier · Ship

ALTAIR LEADER

IMO: 9539171
Type: Vehicle carrier
Flag (estimated): Japan
Port of registry: Tokyo
Technical efficiency: EIV 17.06 g CO₂/t·nm

ISM company (DoC holder) in 2024: NYK SHIPMANAGEMENT PTE LTD · part of NYK

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 4,831 t of cargo on average.

Fuel kg/nm

97.7

Vehicle carrier median 104 kg/nm (−6%)

CO₂ per transport work (cargo)

63.3

g CO₂/t·nm · Vehicle carrier median 62.4 (+1%)

Average speed

16.1 kn

Vehicle carrier median 14.7 kn (+10%)

Fuel per day at sea

37.7 t/day

Fuel consumed

4,660 t

CO₂ emitted

14,574 t

Distance sailed

47,671 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,963 h

123 days, 34% of the year

Within the vehicle carrier fleet, 2023

Set against all 417 vehicle carrier ships with a full-year 2023 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 kg/nmThis ship 93.2 kg/nm · median 103 (−9%)

85.2Ranks 94 of 417, lowest first123

Average speedThis ship 10.6 kn · median 14.5 (−27%)

12.4Faster than 1% of vehicle carrier ships16.5

CO₂ per transport work (cargo)This ship 54.4 g CO₂/t·nm · median 56.6 (−4%)

38.9Ranks 193 of 417, lowest first107

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2018

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 ports22%
From the EU47%
Into the EU27%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

568 t

3.9% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

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

Fuel kg/nm

ALTAIR LEADER
Vehicle carrier median

90.095.0100.0105.0110.0

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

Average speed, kn

ALTAIR LEADER
Vehicle carrier median

10.012.014.016.018.0

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

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

ALTAIR LEADER
Vehicle carrier median

50.075.0100125150

’182018’192019’202020’212021’222022’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2024	+3.2 kn	−3%	+26%	+593%	–	3.2 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2022→2023	−4.8 kn	−5%	−34%	−88%	−0%	4.8 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.7 kn	+7%	+12%	−31%	−59%	0.7 kn faster, fuel per mile up 7%; in line with the speed change.
2020→2021	+4.7 kn	−4%	+41%	−0%	+164%	4.7 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2019→2020	−5.2 kn	−8%	−39%	+58%	−2%	5.2 kn slower, fuel per mile down 8%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.9 kn	+6%	+0%	−79%	−19%	0.9 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).

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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2024	NYK SHIPMANAGEMENT PTE LTD	843	2,639	9,314	675	13.8	90.5	–	–
2023	not published	125	401	1,344	126	10.6	93.2	54.4	–
2022	not published	1,081	3,393	11,046	717	15.4	97.9	54.7	–
2021	not published	1,460	4,578	15,947	1,082	14.7	91.6	133	–
2020	not published	1,531	4,815	15,992	1,606	10.0	95.7	50.2	–
2019	not published	1,049	3,294	10,136	668	15.2	104	51.4	–
2018	not published	4,660	14,574	47,671	2,963	16.1	97.7	63.3	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2024	NYK SHIPMANAGEMENT PTE LTD	–	–	–	–	ClassNK	C
2023	not published	54.4	56.6	−4%	193 of 417	ClassNK	C
2022	not published	54.7	57.7	−5%	212 of 463	ClassNK	C
2021	not published	133	59.6	+123%	422 of 459	ClassNK	C
2020	not published	50.2	57.3	−12%	150 of 449	ClassNK	C
2019	not published	51.4	59.0	−13%	128 of 426	ClassNK	C
2018	not published	63.3	62.4	+1%	230 of 434	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's vehicle carrier 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.