The Boeing 717 was released in 1999—long after the 1960s-era 727—because it wasn't originally a Boeing design; it was a rebranded McDonnell Douglas MD-95. When Boeing acquired its rival McDonnell Douglas in 1997, they inherited the MD-95 project, which was a 100-seat regional jet. Rather than canceling the program, Boeing decided to bring it into their lineup and renamed it the "717" because that specific number had been "skipped" in their commercial 7x7 sequence (it had previously been used internally for the C-135 military tanker). By naming it the 717, Boeing filled a market gap between their 707 and 727 legacy models. The 717 became famous for its incredible "dispatch reliability" and efficiency on short hops, despite its confusing placement in the chronological history of Boeing's aircraft development. It remained in production until 2006, serving as a successful "inherited" bridge between Boeing's classic narrow-body past and its modern, high-efficiency future in the regional jet market.