References 581% CONFIDENCEOverall confidence: 81%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]90%
  thisdayinaviation.com/19-february-1982

  thisdayinaviation.com· Posted Oct 23, 2026· Starts Feb 19, 1982 ✓· 25% of score

  This Day in Aviation: '19 February 1982: At Renton Municipal Airport, Boeing test pilots John H. Armstrong and Samuel Lewis ("Lew") Wallick, Jr., made the first flight of the prototype Model 757 airliner'; the Seattle Times^[5] also dates it 19 Feb.

• [2]85%
  757 Airplane Characteristics for Airport Planning (Boeing)

  web.archive.org· Added Oct 23, 2026· 25% of score

  Boeing planning document with the 186-seat two-class layout and 255,000 lb takeoff weight.^[1]

• [3]75%
  Boeing tests the twins (Flight International, 1982)

  web.archive.org· Added Oct 23, 2026· Starts Feb 19, 1982· 25% of score

  Flight visited Boeing Field when the 757 had flown twice; Lew Wallick felt "very comfortable" flying formation on the 727 camera plane on the first flight.^[1]

• [4]75%
  Boeing 757 (Wikipedia)

  en.wikipedia.org· Added Oct 23, 2026· Starts Feb 19, 1982· 25% of score

  The prototype rolled out at Renton on 13 January 1982 with 136 orders from seven carriers; the seven-month test program used the first five aircraft.^[1]

• [5]85%
  Making It Fly, Part 5: Will it really fly? (Seattle Times)

  special.seattletimes.com· Published Jun 21, 1983· Starts Feb 19, 1982· 0% of score

  Chief test pilot John Armstrong calls it a "perfect first flight" on 19 February, though a design problem later corrected made him shut one engine down; the 375-hour test schedule to December 1982 was met.^[1]

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