Pitts in photo
Tom,
The Pitts in your photo is of the late Charllie Hillard's S-1S single seat, 4-aileron & used a 180 h.p. engine. The S-2S is the larger experimental homebuilt version of the factory built S-2A (2 seater) 200 h.p Pitts except the front cockpit was covered over, a larger 35 gal. fuel tank was installed & 260 h.p. Lycomming engine. Are you aware that Byron has this exact Pitts with same decals in 1/3 scale. The kit is foam & has a 68" w.s. when completed. I hope this helps.