Gadzira shanduro yakaoma kunzwisisa zvikuru yemutsara uyu Self akadzidzisa mukugadzira ndege, Clayton akavaka ndege shanu papurazi remhuri yake pakati pa1916 na1926.
Chokwadika, shanduro yakaoma kunzwisisa zvikuru yemutsara wacho ndeiyi: "Akazvidzidzisa amene kugadzirwa kwendege, Clayton akavaka ndege shanu papurazi remhuri yake pakati pa 1916 na 1926, kubatanidza Henderson powered high-wing. "