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We'd like to thank Foden for being so demanding.
Page 76
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Quite rightly, truck manufactrers like Foden are demanding igher and higher standards in iesel design, particularly at the eavy end of the market. As far S we're concerned, continual evelopment is the only way to leet their demands.
For instance, every Eagle ylinder head is air-flow tested iefore assembly to ensure moke-free operation. Efficient porting, increased outlet maniold diameter and swirl inducing rescents combine to improve he combustion efficiency. So 'uel economy is improved and ,xhaust temperatures are owered.
Phis typifies our attitude to tesign and development: make the engine better but don't complicate it. And it's the reason for the impressive reliability of our engines.
The basic design is very simple. The components are extremely strong; probably stronger than they really need to be. And whatever we don't make ourselves has to be well proven, to maintain the kind of quality a Rolls-Royce diesel must have.
But quality isn't the only result of features such as these. Rolls-Royce Eagle engines are also very economical, both in terms of fuel consumption and long term efficiency and reliability. And the implications of that don't need to be spelt out. If we weren't so fastidious we could build a lot more engines and make a lot more money—for a while. But we'd rather have demanding customers than no customers at all.