QF 3-inch 20 cwt
Performance
Columns: m/v ft/s | Shell (lb) | Time to ft (m) at 25° (seconds) | Time to ft (m) at 40° (seconds) | Time to ft (m) at 55° (seconds) | Max. height (ft)
1990 | 12.5 | 10.1 | 15.5 | 22.1 | 19000 | 2200 | 12.5 | 9.1 | 14.1 | 19.1 | 20000 | 2500 | 12.5 | 8.3 | 12.6 | 16.3 | 23500 | 2000 | 16 | 9.2 | 13.7 | 18.8 | 22000 | 2350 | 31 | 4.4?? | 9.6 | 12.3 | 28750