Medium rotorcraft?
Maybe a silly question, yet I haven't found any answer...
JAR-27 applies to rotorcrafts with a maximum mass of 7000 lbs.
JAR-29 applies to rotorcrafts with a mass of 20 000 or more.
I cannot found any document (JAR-28?) for those aircrafts with a mass between 7000 and 20000 lbs, can you?
Thanks