This would have protected the nearby forest from fires, which could have been caused by the ignition of a jet engine.
ðɪs wʊdhɐv pɹətˈɛktᵻd ðə nˈɪɹbaɪ fˈɔːɹɪst fɹʌm fˈaɪɚz, wˌɪtʃ kˌʊdɐv bˌɪn kˈɔːzd baɪ ðɪ ɪɡnˈɪʃən əvə dʒˈɛt ˈɛndʒɪn.