Voyage estimate
Aframax voyage: Primorsk to Constanta
A Aframax carrying 80,000 tonnes from Primorsk to Constanta sails about 4,629 nm laden via the Dover Strait, Strait of Gibraltar and Bosphorus, about 15.4 days at 12.5 knots. With the ballast leg back and 4 days in port, the round voyage takes about 34.3 days and burns about 990 tonnes of fuel.
Round voyage
34.3 d
15.4 d laden
Laden distance
4,629 nm
Shortest route
Fuel (VLSFO)
990 t
Round voyage
CO2
3,119 t
1,559 t in EU ETS
Round voyage breakdown
| Leg | Distance | Speed | Days | Fuel |
|---|---|---|---|---|
Laden Primorsk → Constanta | 4,629 nm | 12.5 kn | 15.4 | 509 t |
Ballast Constanta → Primorsk | 4,629 nm | 13 kn | 14.8 | 401 t |
Port time Loading and discharge | — | — | 4.0 | 80 t |
| Round voyage | 9,257 nm | 34.3 | 990 t |
Laden via the Dover Strait, Strait of Gibraltar and Bosphorus; ballast via the Dover Strait, Strait of Gibraltar and Bosphorus.
Emissions and EU ETS
The round voyage burns about 990 tonnes of VLSFO, emitting about 3,119 tonnes of CO2. One end of the voyage is in the EU ETS area, so half of the emissions at sea count, plus emissions at the EU berth: about 1,559 tonnes of CO2, or the same number of EU allowances.
From 2026 shipping companies surrender allowances for 100% of in-scope emissions. Who pays is for the charter party to say.
Assumptions
- Cargo
- 80,000 t
- Laden speed
- 12.5 kn at 33 t/day
- Ballast speed
- 13 kn at 27 t/day
- Port time
- 4 days at 20 t/day
- Laden draft
- 14.5 m
- CO2 factor
- 3.151 t per t fuel
Other ship sizes on this route
Questions
How long does a Aframax take from Primorsk to Constanta?
About 15 days 10 hours laden at 12.5 knots over 4,629 nm via the Dover Strait, Strait of Gibraltar and Bosphorus. The full round voyage, with the ballast leg back and 4 days in port, takes about 34.3 days.
How much fuel does a Aframax burn on this voyage?
About 990 tonnes of VLSFO for the round voyage (509 t laden, 401 t ballast, 80 t in port), emitting about 3,119 tonnes of CO2.
Is this voyage in the EU Emissions Trading System?
Yes. One end is in the EU ETS area, so half the sea emissions count, plus emissions at the EU berth: about 1,559 tonnes of CO2, which means the same number of EU allowances to surrender.