Modern cargo ships uses six types of fuel:
HSMD - High Sulphur Marine Diesel
LSMD - Low Sulphur Marine Diesel
HSMGO - High Sulphur Marine Gas Oil
LSMGO - Low Sulphur Marine Gas Oil
HSHFO - High Sulphur Heavy Fuel Oil
LSHFO - Low Sulphur Heavy Fuel Oil
LSMD and LSMGO is pretty much only used during harbour operations and when transiting areas with a vulnerable environment. Whether you use one or the other depends mostly on price and engine type.
HSMD and HSMGO is used pretty much like their low sulphur counterparts, but mostly in countries with rather more lax environmental standards. (South East Asia, Africa, India etc.)
Before I go on, you need to know what heavy fuel is.
In essence, it's what's left after you refined all the good stuff out of crude oil. If you're lucky, they'll sieve the worst bicycles and boulders out of it, but don't count on it. At room temperature it has the consistency of toffee and it's filled with water. In order to burn it, we have to let it settle for a couple of days, heat it to 130 C and spin it in a centrifuge.
Anyway, LSHFO is used from the moment we leave coastal waters.
HSHFO is only used on what you might call the High Seas. It's illegal to use in European water and in the Gulf of Mexico and a host of other places, but it's cheap, which is important since some of the large containerships burns upwards of one hundred cubic metres per day at cruising speed.
Thank you for the helicopter. Has anyone rendered it in SB style?
HH-52 is essentially an S-62, and is very similar to the S-61/SH-3 Sea King, so you could "mod" the Sea King.
And thank you for the info on ship fuel.
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Salide -
Denton -
The Interrealms
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