Earlier P-40 deliveries and British fighter logistics

Would earlier Lend-Lease deliveries let P-40s survive the Battle of France and the Battle of Britain?

They would probably survive and serve in the Battle of Britain, although British-built fighters were easier to sustain. Their fate in the Battle of France remains unanswered.

The scenario brings American P-40s to Britain and France before the historical aid timetable. They are judged likely to survive and serve usefully during the Battle of Britain, with their North African service as the comparison. Britain would still find Spitfires and Hurricanes easier to build and support at home. Imported P-40s would depend on parts from overseas, while their likely fate in the Battle of France is left open.