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Narrow and Widebody jets form the bedrock of the world aircraft fleet. Narrow body jets are amongst the most flexible of aircraft and are favoured by the low cost carriers for their economy, ease of maintenance, short turnaround time and attractive economics for high frequency and high demand routes.
As the size of the dominant Regional Jet grows towards and even beyond 100 seats per aircraft; the narrow body segment of the market is likely to experience growth and assume operation on some routes previously the domain of the Regional Jet.