ðɪs dᵻlˈeɪ ɪn tɹˈeɪnɪŋ mˈɛnt ðæt hiː bɪkˌeɪm tˈuː ˈoʊld tə kəntˈɪnjuː æz ɐ pˈaɪlət ænd sˌoʊ ˈɛntɚd ɐ nˈævɪɡˌeɪɾɚz kˈoːɹs.
This delay in training meant that he became too old to continue as a pilot and so entered a navigators course.