Originally Posted by
MarkerInbound
I worked for a company that operated 8 recip Convairs in the late 80s. We had all 3 models. While the aircraft may have been certified under CAR4, we operated under FAR 121 and all the normal performance data was available. While Zlinguy's operation didn't use it, we checked the autofeather every runup and used it whenever required by the performance graphs.
You were able to comply with 121.189?