CTOL

…The distance required for takeoff and landing to be considered STOL varies depending on the size and type of aircraft, and there is no clear rule, but for a medium-sized transport aircraft, the runway length required for takeoff and landing, including safety margins, is more than 1,200m for a normal transport aircraft, while a short takeoff and landing transport aircraft only needs about 600m. It can be said to be intermediate between a normal airplane (CTOL, short for conventional take-off and landing aircraft) and a vertical take-off and landing aircraft (VTOL). …

*Some of the terminology that mentions "CTOL" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…どの程度の距離で離着陸できればSTOLといえるかは飛行機の大きさや種類によっても違い，明確な決りはないが，中型の輸送機を例にとると，安全上の余裕を含む離着陸に必要な滑走路の長さが，ふつうの輸送機は1200m以上であるのに対して，短距離離着陸輸送機は600m程度でよい。ふつうの飛行機(CTOL（シートール）。conventional take‐off and landing aircraftの略)と垂直離着陸機(VTOL（ブイトール）)の中間的存在といえる。…

※「CTOL」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報