with Dart 510s, changed to Dart 520s as Type 802. Type 802 First production variant of the 800 series for British European Airways with Dart 510 engines and either 53 or 57 seats, 24 built, first delivered in February 1957. Type 803 Production variant for KLM with Dart 510 engine and 53 seats, nine built, first delivered in June 1957. Type 804 Production variant for Transair (Canada) with Dart 510 engines and 65 seats, three built, first delivered in September 1957. Type 805 Production variant for Eagle Airways with Dart 510 engines and 70 seats, two built, first delivered in December 1957. Type 806 Production variant for British European Airways with Dart 520 engines and 58 seats, 19 built, first delivered in March 1958. Nine aircraft were later converted to Type 802 when the Dart 520s were changed for Dart 510s so the 520s could be used in the airline's Argosy freighters. Type 807 Production variant for the New Zealand National Airways Corporation with Dart 510 engines and 60 seats, four built, first delivered in December 1957. Type 808 Production variant for Aer Lingus with Dart 510 engines and 70 seats, six built, first delivered in May 1957. Type 809 Production variant for Greece, not built. Viscount 810 Improved longer-range variant with 1,991 hp (1,485 kW) Dart 525 engines, 84 built Type 810 Prototype for the improved 810 series with Dart 525 engines and a 52-seat interior with an additional four-seat rear lounge, one built and first flown on 23 December 1957. Type 811 Production variant for Capital Airlines with Dart 525 engines, not built. Type 812 Production variant for Continental Airlines with Dart 525 engines, 52 seats with an additional four-seat rear lounge and integral airstair, 15 built, first delivered in May 1958. Type 813 Production variant for South African Airways with Dart 525 engines (later changed to Dart 530s), 56 seats and four-seat rear lounge, seven built, first delivered in October 1958. Type 814 Production variant for Lufthansa with Dart 525 engines and 64 seats, eleven built, first delivered in October 1958. Type 815 Production variant for Pakistan International Airlines with Dart 525 engines and 51 seats, five built, first delivered in January 1959. Type 816 Production variant for Trans Australia Airlines with Dart 525 engines and 56 seats, two built, first delivered in March 1959. Type 817 Production variant for AVENSA with Dart 525 engines, not built.