Ryan PT-20

Ryan Aeronautical Company of Sandiego, California designed and manufactured a series of WW2 trainers. This model is rarely seen flying or displayed these days!
Dave Masters, owner/pilot, Wrote:
"I have had a PT-20 for over 50 years and it has been in flying condition since around 1968. For those who don’t know about the PT-20: In 1939 Ryan modified 30 of the STAs for the military, making the cockpit openings larger (like the STM,) and designated them PT-20s. All butone or two were re-engined to the 125 Kinner and re-designated PT-20A. When I bought this Ryan, it was a PT-20A and I converted it back to a PT-20 with a Menasco engine. For the past 15+ years, it has been based at the Sonoma Valley Airport (sonomavalleyairport.com) and has moved to the Wings of History Museum."
Dave Masters has also loaned us his spare Menasco engine to be displayed next to the PT-20.
Again, from Dave: "The PT-20As are lined up at the Ryan Co. ramp (photo), Lindbergh Field, San Diego. My PT-20 isn’t in view in this picture but I’m sure it was there. It had a field number 57. In 1939, only 30 PT-20 were manufactured. All but one was re-engined with a 125 hp Kinner engine."
  Note the big Consolidated Aircraft Co. building behind the Ryan hangars. The B-24 Liberator was designed in San Diego.  Rubin Fleet was a big man down there."
 From Wikipedia:  Reuben Hollis Fleet (March 6, 1887 – October 29, 1975) was an American aviation pioneer, industrialist and army officer. Fleet founded and led several corporations, most notably Consolidated Aircraft Company of SanDiego, California.