sentences:  This entailed expanding the inherited scheduled network to provide effective competition to established rivals on a number of key routes, as well as augmenting the acquired fleet with the latest generation narrow-, widebody and supersonic transport airliners to maintain a competitive edge.The rapid expansion of British Caledonian suffered a temporary setback during the recession following in the wake of the 1973 oil crisis.This undermined its financial stability during its formative years and threatened its survival at that stage.