Tugs and service craft, page 111
Heard this year, not on the map now
A to Z, with where and when each was last heard.
| Ship | Size | Where | Heard |
|---|---|---|---|
| 🇬🇧SEVEN ATLANTIC | 142 m26 m wide | Last heard near CatterlineUnited Kingdom | |
| 🇵🇦SEVEN MARLIN | 30 m9 m wide | Last heard at sea | |
| 🇷🇺SEVRUGA | 28 m8 m wide | Last heard near NovomoskovskRussia | |
| 🇰🇳SF HUMA | 21 m7 m wide | Last heard at sea | |
| 🇳🇴SF05 DORA ELSEBETH | 8 m2 m wide | Last heard at sea | |
| 🇬🇧SFF GV ARTEMIS | 28 m8 m wide | Last heard at sea | |
| 🇺🇸SFFD RB1 | 12 m4 m wide | Last heard near San FranciscoUnited States | |
| 🇺🇸SFFD RB2 | 10 m3 m wide | Last heard at sea | |
| 🇺🇸SFFD RESCUE 55 | 13 m5 m wide | Last heard near San FranciscoUnited States | |
| 🇱🇻SFINKSA | 29 m9 m wide | Last heard at sea | |
| 🇳🇴SGT SOSTER | 15 m6 m wide | Last heard near FredrikstadNorway | |
| 🇮🇩SH MAKMUR 278 | Size not sent | Last heard at sea | |
| 🇮🇱SHACHAR | 16 m6 m wide | Last heard near HaderaIsrael | |
| 🇦🇺SHACKELTON | 15 m6 m wide | Last heard near GladstoneAustralia | |
| 🇬🇧SHAKEDOG | Size not sent | Last heard near LondonBound for London | |
| 🇬🇩SHANCHEZ TENDER IV | 15 m8 m wide | Last heard near Hillsborough, Carriacou IsGrenada | |
| 🇭🇰SHANGHAI | 31 m9 m wide | Last heard near Hong KongHong Kong | |
| 🇬🇧SHANNON KIMBERLY | 17 m4 m wide | Last heard at sea | |
| 🇺🇸SHANNON MCALLISTER | 26 m9 m wide | Last heard near New YorkUnited States | |
| 🇦🇪SHARIEF ALERT | 16 m32 m wide | Last heard at sea | |
| 🇦🇺SHAULA | 16 m5 m wide | Last heard at sea | |
| 🇬🇧SHAWLIFE | 20 m5 m wide | Last heard at sea | |
| 🇺🇸SHAWN MILLER | 16 m6 m wide | Last heard near New YorkUnited States | |
| 🇺🇸SHAWNEE | 20 m8 m wide | Last heard at sea | |
| 🇺🇸SHAWNEE FOREST | 23 m11 m wide | Last heard near Corpus ChristiUnited States | |
| 🇨🇳SHE GANG 12 HAO | 38 m11 m wide | Last heard near Shekou PtChina | |
| 🇨🇳SHE GANG 3 HAO | 33 m10 m wide | Last heard near Shekou PtChina | |
| 🇨🇳SHE GANG 5 HAO | 35 m10 m wide | Last heard near Shekou PtChina | |
| 🇨🇳SHE GANG 8 HAO | 35 m10 m wide | Last heard near Shekou PtChina | |
| 🇨🇳SHE GANG 9 HAO | 36 m10 m wide | Last heard near Shekou PtChina | |
| 🇺🇸SHEARWATER | 39 m10 m wide | Last heard near Port AngelesBound for Port Angeles | |
| 🇬🇧SHEARWATER PV | 15 m6 m wide | Last heard near SunderlandUnited Kingdom | |
| 🇨🇳SHEGANG 2 HAO | 32 m10 m wide | Last heard near Shekou PtChina | |
| 🇨🇳SHEGANG6HAO | 37 m10 m wide | Last heard near Shekou PtChina | |
| 🇫🇷SHELBURN | 6 m1 m wide | Last heard near LorientFrance | |
| 🇹🇼SHEN AO VII | 33 m13 m wide | Last heard at sea | |
| 🇹🇼SHEN AO VIII | 33 m12 m wide | Last heard at sea | |
| 🇺🇸SHERENA B CHERAMIE | 18 m7 m wide | Last heard near WilmingtonUnited States | |
| 🇨🇦SHERI LYNN S | 50 m10 m wide | Last heard near TorontoCanada | |
| 🇺🇸SHERRYL B. REEVES | 53 m14 m wide | Last heard near New OrleansUnited States | |
| 🇮🇩SHINBISHI | Size not sent | Last heard at sea | |
| 🇭🇰SHING TAT | 24 m7 m wide | Last heard at sea | |
| 🇯🇵SHINKO MARU NO.3 | 39 m10 m wide | Last heard near UragamiBound for Kobe | |
| 🇯🇵SHIRAKABA | 14 m7 m wide | Last heard at sea | |
| 🇯🇵SHIRAKAMI | 36 m10 m wide | Last heard at sea | |
| 🇦🇺SHOAL CAPE | 24 m10 m wide | Last heard at sea | |
| 🇦🇪SHOJAA | 16 m6 m wide | Last heard at sea | |
| 🇯🇵SHOJIN MARU | 36 m9 m wide | Last heard at sea | |
| 🇯🇵SHONAN MARU | 39 m9 m wide | Last heard near YokohamaBound for Yokohama | |
| 🇯🇵SHONAN MARU NO.15 | 33 m9 m wide | Last heard at sea | |
| 🇬🇧SHORELINE ENGINEER | 18 m8 m wide | Last heard near PortlandBound for Portland | |
| 🇺🇸SHORELINE IX | 18 m6 m wide | Last heard at sea | |
| 🇨🇾SHOREWAY | 98 m22 m wide | Last heard at sea | |
| 🇬🇧SHOVETTE | 25 m8 m wide | Last heard at sea | |
| 🇯🇵SHOYO MARU | 38 m10 m wide | Last heard near WakayamaBound for Osaka | |
| 🇸🇱SHUN FENG 9 | 149 m24 m wide | Last heard near SingaporeSingapore | |
| 🇭🇰SHUN TAT D12 | 100 m30 m wide | Last heard at sea | |
| 🇸🇮SI-10 | 13 m4 m wide | Last heard near KoperSlovenia | |
| 🇸🇮SI-11 | 11 m4 m wide | Last heard near KoperSlovenia | |
| 🇬🇧SIBERIAN | 11 m4 m wide | Last heard near LondonBound for London | |
| 🇺🇸SIDNEY BLAIR | 21 m8 m wide | Last heard at sea | |
| 🇺🇸SIDNEY T | 8 m3 m wide | Last heard at sea | |
| 🇳🇴SIEM TOPAZ | 92 m22 m wide | Last heard near SingaporeSingapore | |
| 🇳🇱SIF R | 80 m14 m wide | Last heard at sea | |
| 🇻🇨SIGMA | 47 m11 m wide | Last heard at sea | |
| 🇳🇴SIGNALEN | 6 m3 m wide | Last heard near OsloNorway | |
| 🇺🇸SIGNET AMERICAhas a photo | 30 m12 m wide | Last heard near Corpus ChristiBound for Ingleside | |
| 🇺🇸SIGNET ARCTURUS | 30 m12 m wide | Last heard near Aransas PassBound for Ingleside | |
| 🇺🇸SIGNET CAPELLA | 28 m13 m wide | Last heard near Aransas PassUnited States | |
| 🇺🇸SIGNET CONSTELLATION | 33 m14 m wide | Last heard near Aransas PassUnited States | |
| 🇺🇸SIGNET POLARIS | 32 m10 m wide | Last heard near Aransas PassUnited States | |
| 🇺🇸SIGNET RANGER | 23 m8 m wide | Last heard near BrownsvilleBound for Brownsville | |
| 🇺🇸SIGNET STARS&STRIPES | 28 m13 m wide | Last heard at sea | |
| 🇺🇸SIGNET TITAN | 41 m10 m wide | Last heard near MiamiUnited States | |
| 🇺🇸SIGRID DUNLAP | 40 m12 m wide | Last heard at seaBound for Seattle | |
| 🇮🇸SIGURVIN | 17 m4 m wide | Last heard at sea | |
| 🇳🇴SIKKERHETSENTER MOB1 | 8 m3 m wide | Last heard at sea | |
| 🇬🇦SILK ROAD 13 | 58 m12 m wide | Last heard near ManilaPhilippines | |
| 🇫🇷SILURE | 18 m5 m wide | Last heard at sea | |
| 🇪🇸SILVER | 12 m5 m wide | Last heard near Port-la-NouvelleFrance | |
| 🇷🇺SILVER LOWENNA | 26 m8 m wide | Last heard near Ust'-LugaBound for Saint Petersburg | |
| 🇦🇺SILVER STREAK | 18 m6 m wide | Last heard at sea | |
| 🇳🇱SILVERPIT | 10 m4 m wide | Last heard at sea | |
| 🇺🇸SILVERSHIP 34 | 10 m3 m wide | Last heard at sea | |
| 🇬🇧SILVERWELL | 12 m4 m wide | Last heard near PortlandBound for Portland | |
| 🇨🇦SIMEC M-01 | 9 m3 m wide | Last heard near VerchèresCanada | |
| 🇨🇦SIMEC M-03 | 9 m3 m wide | Last heard near VerchèresCanada | |
| 🇨🇦SIMEC M-20 | 9 m3 m wide | Last heard near VerchèresCanada | |
| 🇵🇹SIMENTA DE CARVALHO | 12 m4 m wide | Last heard near SinesPortugal | |
| 🇳🇱SIMON | 17 m4 m wide | Last heard near BruinisseNetherlands | |
| 🇸🇪SIMON | 12 m3 m wide | Last heard at sea | |
| 🇳🇱SIMSON | 14 m4 m wide | Last heard at sea | |
| 🇮🇩SINAR JAYA | 23 m6 m wide | Last heard at sea | |
| 🇸🇬SINARAN AMAN | 20 m10 m wide | Last heard at seaBound for Lumut | |
| 🇸🇬SINARAN CERAH | 24 m8 m wide | Last heard at sea | |
| 🇸🇬SINARAN EMBUN | 27 m8 m wide | Last heard near Musi River, SumatraBound for Palembang, Sumatra | |
| 🇸🇬SINARAN INTAN | 27 m8 m wide | Last heard at sea | |
| 🇸🇬SINARAN LANGIT | 27 m8 m wide | Last heard at sea | |
| 🇸🇬SINARAN PUTERA | 27 m8 m wide | Last heard at sea | |
| 🇮🇩SINDO ASIA 1 | 29 m8 m wide | Last heard at sea |