sentences:  BCal's introduction of a 747 on the daily Gatwick—Houston schedule furthermore enabled it to replace its two-class configured One-Eleven 500s on the West African coastal schedule to Banjul (The Gambia) and Freetown (Sierra Leone) via Casablanca and Las Palmas with 707s.The 707's greater range enabled it to cut out intermediate stops and offer its passengers a more convenient, direct routeing that took less time.BCal replaced two-class One-Elevens operating on the Tripoli route with 707s.