Originally Posted by
galaxy flyer
I thought the DHC-6 was a FAR 23 plane. Is it cert'd to FAR 25 performance standard?
Several different certification criteria have been used since DHC-6 production began in the mid 1960s.
The aircraft was originally certified to CAR Part 3. Later, the aircraft was certified to SFAR 23. More recently (2010), an AFM supplement has been published that provides performance information to permit operation to Part 23 Commuter Category requirements (FAR 23 at amendment 58). New production Series 400 aircraft are certified to FAR 23 at various amendment levels.
All of the above information can be found in the AFM. The certification basis is published on approval page 1 of the AFM. Performance data to support SFAR 23 certification is published in Supplement 11 of the Series 300 AFM. The Series 400 aircraft uses SFAR 23 performance data as the baseline.
Supplement 37 to both the Series 300 and Series 400 AFM provides the performance data required to comply with FAR 23 at amendment 58. In practice, this means the data required to comply with EU-OPS Performance A criteria, and to comply with the Canadian and American '2010 rule' requirements for Part 23 aircraft with more than 9 seats.
Michael