The surviving aggregate data for the Sierra Leone-to-Liverpool route are thinner than the HX record. The available totals give 275 SL convoys, 27 attacked sailings, and 78 ships lost. Because the total number of participating vessels was unavailable, a deliberately conservative average of 20 ships per convoy gives an estimate of roughly 5,500 ship journeys. Even that approximate denominator suggests that most sailings completed the route without a loss. Firm convoy and loss counts should therefore be distinguished from a reconstructed traffic total.
Chapter · 2:09:51-2:11:15
SL convoy figures show both resilience and the limits of the record
The Sierra Leone route recorded 275 convoys, 27 attacked sailings, and 78 ships lost, although its total ship journeys require estimation.