American Aviation Historical Society

• 
  AAHS Journal, Vol 70, No 4
  Winter 2025
  
  Previous AAHS Journals

• 
  AAHS FLIGHTLINE, 26-02
  February 280, 2026
  
  Previous FLIGHTLINEs

• 
  Lockheed KC-130F Hercules
  Photo of the Day
  
  
  

---

This Day in History:
April 13, 1989

The first flight-tests of the Pratt & Whitney / Alison propfan engine are carried out in the U.S.

•