Automatic chassis lubrication continued to be fitted, operating thermostatically every time the engine warm(ed) up, and the propeller-shaft centre bearing was prepacked with grease so did not require lubrication.
Designed to give reliable service under prolonged hard use, the engine featured deep water jackets, thermostatically controlled oil cooling, copper-lead bearings and a hardened crankshaft.
To increase the success rate of nesting, a nest watcher places a small thermostatically controlled electric blanket over the eggs or chicks, whenever the female leaves the nest for food.
