Doctor Anthony Johnston, a member of the International Aerobatic Club, recently earned his Master CFI-Aerobatic accreditation.  Tony is the chief instructor and owner of Knife Edge Aerobatics at Strother Field (WLD) in Winfield, Kansas.  Specializing in aerobatic, spin, and tailwheel training, he also serves as a FAASTeam representative in the FAA's Wichita FSDO area.