Tuesday, January 13, 1942. Things that fly.
On this day in 1942, a German test pilot became the first individual to deploy an ejection seat.
You can read more about that here:
13 January 1942
On the same day, the Sikorsky R4 flew for the first time.
The helicopter was produced through 1944, with 131 examples being made. One was used for the first combat rescue of wounded men, in Burma, in 1944.