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Statistical Analysis - Page 5 of
Analysis of U-boat Operations in the Vicinity of
Convoys SC 121, HX 228, SC 122 and HX 229 - March 1943
Received from Roger Griffiths, England - His source: Public Records Office, Kew
To SC 121 Analysis To HX 228 Analysis To SC 122 Analysis To HX 229 Analysis|
Surface Escort - No. of Ships in Ocean Escort throughout Passage
(figures in brackets denote number of ships joining and/or leaving during passage). |
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Convoy
|
Destroyers
|
Cutters
|
Frigates
|
Corvettes
|
Total
|
|
1 (2)
|
1 (1)
|
–
|
3 (3)
|
5 (6)
|
|
|
3 (1)
|
–
|
–
|
4
|
7 (1)
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|
|
1 (1)
|
(1)
|
1
|
5
|
7 (2)
|
|
|
2 (5)
|
–
|
–
|
2 (1)
|
4 (6)
|
|
|
Total
|
7 (9)
|
1 (2)
|
1
|
14 (4)
|
23 (15)
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Air Escort - No. of Sorties
|
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Convoy
|
Base
|
Escort
|
Patrols
|
Protective Sweeps
|
|
|
Met
|
Not met
|
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| SC 121 | Newfoundland |
1
|
–
|
–
|
–
|
| Iceland (c) |
1
|
1
|
–
|
5
|
|
| Aldergrove |
2
|
4
|
1
|
7
|
|
| Castle Archdale |
–
|
–
|
–
|
3
|
|
| Oban |
–
|
–
|
–
|
3
|
|
| Bowmore |
–
|
–
|
–
|
2
|
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Total SC 121
|
4
|
5
|
1
|
20
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| HX 228 | Newfoundland |
5(?)
|
–
|
–
|
–
|
| Aldergrove |
5
|
–
|
1
|
–
|
|
| Iceland (c) |
–
|
2
|
–
|
–
|
|
| Castle Archdale |
–
|
–
|
–
|
8
|
|
|
Total HX 228
|
10
|
2
|
1
|
8
|
|
| SC 122 | Newfoundland |
6
|
–
|
–
|
15 sweeps
SC 122 & HX 229 |
| Aldergrove |
6
|
–
|
1
|
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| Iceland (c) |
2
|
1
|
1
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| Benbecula |
6
|
–
|
–
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Total SC 122
|
20
|
1
|
2
|
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| HX 229 | Newfoundland |
2
|
–
|
–
|
|
| Aldergrove |
3
|
4
|
–
|
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| Iceland (c) |
1
|
2
|
–
|
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| Benbecula |
6
|
–
|
–
|
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Total HX 229
|
12
|
6
|
–
|
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Grand Total
|
46
|
15
|
3
|
43 sweeps
|
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Surface Craft - Initial Detection by Escort
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Convoy
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R.D.F.
|
Sighting
|
Asdic
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No. of Hunts
|
|
3
|
4
|
6
|
10
|
|
|
2
|
2
|
2
|
5
|
|
|
4
|
–
|
1
|
4
|
|
|
4
|
6
|
3
|
12
|
|
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Total
|
13
|
12
|
12
|
31
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|
Aircraft
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Convoy
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No. of Sightings
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No. of Attacks
|
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SC 121
|
5
|
3
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HX 228
|
6
|
2
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|
SC 122
|
14
|
10
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HX 229
|
11
|
5
|
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Sweeps SC 122 & HX 229
|
8
|
5
|
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Total
|
44
|
25
|
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Ships torpedoed
|
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| Please note these numbers are not necessarily correct, follow the links to each convoy for complete numbers |
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Convoy
|
No. torpedoed
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No. sunk
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No. of stragglers sunk
|
|
SC 121
|
6
|
5
|
7* (incl. 1 romper)
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|
HX 228
|
4
|
4
|
–
|
|
SC 122
|
8
|
8
|
–
|
|
HX 229
|
12
|
12
|
1
|
|
Total
|
30
|
29
|
8
|
| * "4 stragglers not included in chart as their positions are not known. U-boats in Contact: * "These numbers are very approximate". U-boats known to have been sunk: "Other U-boats were damaged and at least one probably sunk. |
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