Pilot Information Center

FAA Order 7110.65, Air Traffic Control
Effective February 14, 2008
Includes Change 1 Effective July 31, 2008

Appendix A: Fixed-Wing Aircraft | Appendix B: Helicopters/Rotorcrafts

Appendix C.

Aircraft Information

Specific Homebuilt/Experimental Aircraft

Homebuilt and Experimental Aircraft*

Designator Criteria	Type Designator	Performance Information**
		Climb Rate (fpm)	Descent Rate (fpm)	SRS Cat.
Aircraft with cruise (indicated) airspeeds of 100 knots or less	HXA	500	500	I
Aircraft with cruise (indicated) airspeeds of greater than 100 knots, up to and including 200 knots	HXB	750	750	I
Aircraft with cruise (indicated) airspeeds greater than 200 knots	HXC	1,000	1,000	I

NOTE-
*Configuration diversity and the fact that airworthiness certificates are issued to aircraft builders, vice manufacturers, necessitates the assignment of generic aircraft type designators based on cruise performance, rather than specific manufacturer and normal descriptive/performance information.

**All performance criteria has been estimated because configuration diversity precludes determining precise aircraft-specific information.

Updated Friday, August 1, 2008