De Havilland DH.4 crash, Aug 10, 1921, Fort Sill-Henry Po...
De Havilland DH.4 accident on August 10, 1921 near Fort Sill-Henry Post Field AFB Oklahoma, United States with no fatalities.
- Date: August 10, 1921
- Aircraft: De Havilland DH.4
- Location: Fort Sill-Henry Post Field AFB Oklahoma, United States
- Fatalities: 0
- Phase of flight: Takeoff and climb
De Havilland DH.4 AS-63129 collided with DH.4 AS-63502 while taking off from Fort Sill, Oklahoma, on 10 August 1921. The fate of both crews is not known.