A documentary looking at the elementary principles, illustrated by means of diagrams and models, of an internal combustion engine.
| Release Date | January 1, 1939 | |
|---|---|---|
| Status | Released | |
| Original Title | First Principles of the Petrol Engine | |
| Runtime | 10min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Shell Film Unit | |