Hms Mastiff (Possibly) Wreck

Surveying Details

H0166/39 20.11.39 H0166/39 20.11.39 SANK 093DEGS, 1M FROM TONGUE LTV. (C IN C NORE). - PNM 2641/39. H1602/47 26.3.47 H1602/47 26.3.47 EXAM'D 24.9.46 IN 513015N, 012736E OR 077.75DEG, 3.54M FROM TONGUE SAND TWR. SWEPT CLEAR AT 40FT, FOUL AT 41.5FT. SMALL CONTACT, GAVE SLIGHT A/S TRACE. (HMS FRANKLIN, 1.11.46 E7934). - NM 785/47. H1602/47 10.7.50 H1602/47 10.7.50 NOW CLEAR AT 50FT. (C IN C NORE, 10.7.50). H1602/47 11.10.50 H1602/47 11.10.50 AMEND TO WK 7FMS 3FT. (HMS FRANKLIN). - NM 1953/50. H926/62 15.3.62 H926/62 15.3.62 LOCATED USING HSA & DECCA. DRIFT SWEPT CLEAR AT 47FT, FOUL AT 49FT. LEAST E/S DEPTH 55FT IN GEN DEPTH 59FT. SCOUR DEPTH 67FT. (HMS ECHO, 10.10.61). NC 1607. H351/67 25.1.67 H351/67 25.1.67 LEAST E/S DEPTH 53FT IN GEN DEPTH 58FT. SCOUR DEPTH 62FT. (ISS, R OF S 26.12.66). 27.1.69 27.1.69 WK 7FMS 4FT [LAT] SHOWN ON NE 1607. 13.6.72 13.6.72 CHART AS WK SW 14MTRS [LAT]. NC 1828. 10.11.82 10.11.82 CHART AS WK SW 14MTRS IN 513017N, 012741E. NC 1183. H2050/82 23.2.84 H2050/82 23.2.84 EXAM'D 22.11.83 IN 513017N, 012738E USING HIFIX 6 [2 LOP]. LEAST E/S DEPTH 15.6MTRS IN GEN DEPTH 17.5-18MTRS. SCOUR DEPTH 18.5MTRS. DCS3 HT 1.9MTRS. LYING APPROX 280/100 DEGS. SMALL DETACHED PIECES OF WKGE NEARBY. REQUIRES TO BE WIRE SWEPT. (HMS EGERIA, HI 123, WK 25). NCA, RETAIN SWEPT DEPTH. H3936/88 15.2.90 H3936/88 15.2.90 EXAM'D 8.9.89 IN 513017N, 012738E [OGB] USING TRISPONDER [5 LOP]. SWEPT CLEAR AT 15.8MTRS, FOUL AT 15.9MTRS. LEAST E/S DEPTH 15.8MTRS IN GEN DEPTH 17.5MTRS. SCOUR DEPTH 18.1MTRS. DCS3 HT 1.6MTRS. BROKEN UP, LYING 110/290DEGS APPROX. GIVES MAGNETOMETER DEFLECTION. (NP 1016, HI 458). - NM 691/90. HH090/667/01 4.1.96 HH090/667/01 4.1.96 EXAM'D 27.7.95 IN 513018.94N, 012730.00E [WGD] USING DGPS. SWEPT CLEAR AT 15.5MTRS, NOT FOULED. LEAST E/S DEPTH 15.8MTRS IN GEN DEPTH 17.0MTRS. SCOUR DEPTH 0.3MTRS. DCS3 HT 1.9MTRS. LENGTH 57MTRS, WIDTH 12MTRS. LIES 097/277DEGS. GOOD MAGNETIC ANOMALY. UPRIGHT AND SEMI BURIED. BROKEN IN TWO WITH 25MTRS BETWEEN THE PARTS. (OCEONICS, HI 667). SWEEP NOT COMPLETE. RETAIN AS WK SW 15.8MTRS. NCA. HH091/269/01 9.2.09 HH091/269/01 & SEP 2009/000017145 9.2.09 EXAM'D 8.9.08 IN 5130.300N, 0127.500E [WGD] USING DGPS. LEAST M/B DEPTH 15.4MTRS IN GEN DEPTH 17MTRS. NO SCOUR ON MAIN PART. MAIN PART: LENGTH 75MTRS, WIDTH 10MTRS, HT 1.6MTRS. LIES 100/280 DEGS. SMALLER PART: LENGTH 10MTRS, WIDTH 10MTRS, HT 1.6MTRS. LIES 10MTRS NE OF MAIN PART. (MARIN MATTEKNIK, HI 1269). ?MAIN BOW AND STERN PORTIONS IN LINE (LENGTH C 50MTRS), WITH CENTRE PART (?BOILER/ENGINE) DISPLACED NE. SCOUR 1.5MTRS DEEP AT SMALLER PART. AMEND WK 15.4MTRS IN REVISED POSN. - NM 1729/09. 24.7.09 SEP 2009/000097975 24.7.09 SURVEY DATA REVIEWED. AMEND WK 15.3MTRS. BR STD.