Robin Iv Wreck
| Field | Value |
|---|---|
| Wreck Category | dangerous wreck |
|
Robin iv Wreck Location Marine Coordinates (DMM) |
52 27.556 N,1 53.15 E |
| Latitude, Longitude Decimal Degrees |
|
| Wreck Depth | 23.37 m |
| Water Depth | 27 m |
| Water Level Effect | always under water/submerged |
| Vertical Datum | Approximate Lowest Astronomical Tide |
| Name | ROBIN IV |
| Type | tug |
| Flag | US |
| Length | 37.8 m |
| Width | 9.4 m |
| Draught | 4.6 |
| Sonar Length | 43.7 |
| Sonar Width | 19.1 |
| Shadow Height | 3.9 |
| Orientation | 92 |
| Tonnage | 197 |
| Tonnage Type | gross |
| Conspic Visual | not visually conspicuous |
| Conspic Radar | not radar conspicuous |
| Date Sunk | Sep 14, 1975 |
| Bottom Texture | 4/6 |
| Scour Dimensions | 200.0,,002.1,005.0 |
| Original Detection Year | 1975 |
| Last Detection Year | 2016 |
| Original Source | Lloyd's and Marine Underwriter's reports |
| Surveying Details | 25.9.75 WK, LEAST DEPTH 7.9MTRS, IN 522730N, 015309E. G SPH BUOY, INTQKFLG.10S RAREFL BELL ESTABLISHED 2 CABLES S OF WK. (TH). NAVEAMS 295 & 302 ISSUED. 29.9.75 G CAN BUOY INTQKFLG. RAREFL ESTABLISHED 300FT N OF WK. NAVEAM 312 ISSUED. H4629/71 31.10.75 WK 7.9MTRS [4.2FMS] IN 522730N, 015309E NOW MARKED BY TWO GREEN SPHERICAL LIT WRECK BUOYS, INTQKFLG & RADAR REFL., LAID 000DEGS, 300FT AND 180DEGS, 300FT FROM WK. (TRINITY HOUSE NM 102/75). - NM 2228/75. 2.2.78 N CARD BUOY, VQKFL,SHOWN CLOSE N & S CARD BUOY, QKFL(6) & LFL15S, SHOWN CLOSE S. NE 1536. H4629/71 8.11.78 SWEPT CLEAR AT 21.3MTRS. BUOYS REMOVED. (TH NM 113/78). AMEND TO SW 21.3MTRS & DELETE BUOYS. - NM2790/78 H1942/80 1.9.82 EXAM'D 25.2.82 IN 522731N, 015317E USING HIFIX/6 [3 LOP]. LEAST E/S DEPTH 22.6 IN GEN DEPTH 26.5MTRS. NO SCOUR. HYDROSEARCH VERTICAL HT 9.9MTRS, SHADOW HT 9.3MTRS, LENGTH 46MTRS, BEAM 11.8MTRS. LYING 086/266DEGS, BOWS W, ACROSS A SANDWAVE. HELD BY CABLE TO SEABED. MAST STILL STANDS. (HMS BULLDOG HI 11). AMEND TO WK 16.6MTRS IN REVISED POSN. - NM2874/82. SEP 2016/000091758 25.7.17 EXAM'D 14.12.16 IN 5227.556N, 0153.150E [WGD]. LEAST M/B DEPTH 23.37MTRS IN GEN DEPTH 27MTRS, LENGTH 43.7MTRS, WIDTH 19.1MTRS, HEIGHT 3.9MTRS, ORIENTATION 092/272 DEGS. SCOUR LENGTH 200MTRS, 2.1MTRS DEEP, TOWARDS 005 DEGS. WRECK IS BROKEN AND PARTIALLY BURIED. (GARDLINE, HI 1494). AMEND DW 23MTRS IN REVISED POSN. |
| Last Amended Date | Jul 25, 2017 |
Circumstances of loss
16.9.75 AMERICAN TUG ROBIN IV, BUILT 1972, OWNED BY ROBIN INTERNATIONAL MARINE TOWING CO., WAS HOLED BY DERRICK BARGE NO.15, SINKING IN 522726N, 015330E. LATER REPORTED SUNK IN POSN 100DEGS (T), 5M FROM LOWESTOFT PIER HEAD IN 522726N, 015336E. (LL, 16.9.75). AMENDED POSN 522730N, 015309E. (LL, 17.9.75).
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