Elizabethan navy complemented ships at about three men per five tons

Evidence

In a few instances there are estimates based upon the navy’s formula allowing 3 men for each 5 tons (Corbett, Sp. War, p. 265), since that ratio appears to have been followed roughly. — Mary Frear Keeler, Sir Francis Drake’s West Indian Voyage,…, 2044

Categorization

• QUESTION: Useful conversion for estimating the size and crew of ships from partial records — but is the ratio reliable for privateers, not just Royal Navy ships?
• corroborated: 2 independent passages support this claim — Mary Frear Keeler, Sir Francis Drake’s West Indian Voyage,…, 2044