Capital ordered 4 Comet IV and 10 Comet IVA in July 1956 Capital's Mk.4As were to be furnished to accommodate 74 passengers, " in the utmost luxury" by having 68 persons seated four abreast in two large cabins and six in a forward lounge. The Mk.4A was launched in June 1956 as a short range version of the Comet. The fuselage was stretched and the wing span was reduced. The Mk.4A died, when Capital Airlines cancelled the order. As a result no Mk 4Awas ever built.
CAPITAL AIRLINES was in talks with Lockheed Aircraft in 1957 to purchase nine 97 passenger Convair 880 pure jets, to be delivered from Sept. 1960 to Sept. 1961. In 1959 the order was decreased from 9 to 7, even after aircraft to fill that order were in production, United Airlines took over Capital and cancelled the order and the planes were delivered to various carriers. None of the 7 exist today as they either crashed or were scrapped.
June 13, 1947, Time:18:16, Location: Leesburg, Virginia, Flight #: 410, Route: Pittsburgh - Washington D.C. A/C Type: Douglas DC-4 (C-54-DO), Registration: NC88842, Aboard: 50 (passengers:47 crew:3),Fatalities: 50 (passengers:47 crew:3). The aircraft crashed into a ridge at Lookout Rock, 8 miles SE of Charles Town, WV during a rainstorm. The action of the pilot in descending below the minimum en route altitude under conditions of weather which prevented adquate visual reference to the ground. A contributing cause was the faulty clearance given by ATC