In a Notice published today, the FAA announced the availability of Advisory Circular (AC) 90-109 Airmen Transition to Experimental or Unfamiliar Airplanes, which “provides information and guidance to owners and pilots of experimental airplanes and to flight instructors who teach in these airplanes.” The AC will also assist a pilot who is planning on participating in a flight-test program in an unfamiliar experimental aircraft and may also be useful for pilots planning the transition to any unfamiliar fixed-wing aircraft, including type-certificated aircraft.
The AC divides aircraft into a variety of groupings based on the aircraft performance and handling characteristics. The groupings are then used to provide the basis of a training plan and transition program. A pilot may use the AC with a qualified CFI to obtain the appropriate instruction necessary for a successful transition.
AC 90-109 became effective on March 30, 2010. If you would like more information regarding the AC, you should contact the FAA General Aviation and Commercial Division (202) 267-8212, Flight Standards Service, AFS-800, Federal Aviation Administration, 800 Independence Avenue, SW., Washington, DC 20591.