EROPS and the Overwater Twin

Erops – Twins Conquering Distance

The term EROPS denotes extended range operations of twin-engine aircraft. The mnemonic was coined in the early 1980s, and at present is still unfamiliar to many; however, if airframe and engine manufacturers, and numerous operators have anticipated correctly, the word will be considerably more familiar by the end of this decade.

Richard W Taylor, Vice President of the Boeing Commercial Airplane Company, published a paper in April 1987, which provides a graphic account of how this new era came about. Boeing, after all, is its chief instigator – the company began engineering studies in 1980 on the 767.

The manufacturer recognised that for airlines to operate with both viability and flexibility on many international sectors, in a number of instances, two engines were better than four.

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