Analysis of information sources in references of the Wikipedia article "Instrument landing system" in English language version.
Sep 24, 1929: At Mitchel Field, N.Y., Army Lt. James H. Doolittle became the first pilot to use only instrument guidance to take off, fly a set course, and land. Doolittle received directional guidance from a radio range course aligned with the airport runway, while radio marker beacons indicated his distance from the runway. [...] He flew in a hooded cockpit, but was accompanied by a check pilot who could have intervened in an emergency.
{{cite web}}
: CS1 maint: archived copy as title (link){{cite web}}
: CS1 maint: archived copy as title (link)