確定日付の確度: 確定確定として発表情報源が日付をどれだけ確定的に述べているか：確定、予定、推定、延期、未確認。「確定」のピンをすべて表示確度 79%総合信頼度: 79%ピンの情報源と参照がその日付をどれだけ裏付けているか。出典を含む 4 件の資料がピンの開始・終了時刻をどれだけ強く裏付けているかの加重平均。最新の資料より180日古くなるごとに重みは半分になります確度75%以上のピンをすべて表示
Airways: "Today, in 1972, Lockheed L-1011 TriStar (N301EA) entered commercial service with Eastern Air Lines on its Miami-New York route"; Lockheed Martin[2]: "After its revenue flight on April 26, 1972, Eastern Air Lines began the scheduled operation of the L-1011 on April 30". The delivery date varies between sources (Wikipedia[3] gives both 5 and 26 April), so the pin uses the revenue-flight day.The Lockheed L-1011 TriStar, N301EA, entered commercial service with launch customer Eastern Air Lines on 26 April 1972 on the Miami to New York route, making it the third wide-body airliner in commercial operation after the 747 and DC-10.
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