07/31/2009. Remarks by Johan Visschedijk: "Designed by Stelio Frati, this Picchio (Woodpecker) was one of twenty F.15Bs produced by Procaer (Progetti Costruzioni Aeronautiche S.p.A.) of Milan, Italy, it was registered in Germany as D-ECZA on September 1, 1962, and still is as of this day."