The Fokker 100 design was announced in 1983 as an updated replacement for Fokker's popular, but superseded F28 Fellowship design. Although the majority of the parts between the two aircraft are different, the Fokker 100 was certificated by the United States Federal Aviation Administration as the Fokker 28-0100. The most noticeable difference was the much longer fuselage, which increased seating by 65% from 65 in the original F28 series to 107 in a three-by-two single-class arrangement. Fokker also introduced a redesigned wing for the 100, which they claimed was 30% more efficient in cruise. The engines were upgraded to the modern Rolls-Royce Tay turbofans, while the cockpit was updated with an all-glass instrumentation package. The Fokker 100 features twin fuselage-mounted engines and a T-tail, similar to that of the Douglas DC-9 family. The Fokker 100 does not have eyebrow windows above the main cockpit windows as on the Fokker F28. Source: WIKIPEDIA