ABC Dragonfly
| Dragonfly | |
|---|---|
| ABC Dragonfly at the Science Museum (London) | |
| Type | Radial aero engine |
| National origin | United Kingdom |
| Manufacturer | ABC Motors |
| Designer | |
| First run | 1918 |
| Number built | 1,147 |
The ABC Dragonfly was a British radial engine developed towards the end of the First World War. It was expected to deliver excellent performance for the time and was ordered in very large numbers. It proved, however, to be extremely unreliable and was abandoned when its faults were unable to be corrected.