Fly_Unity
Well-Known Member
Manufactures determine VMC speed based off CFR 23.149 which states:
"(5)The most unfavorable weight in the range of takeoff weights."
I always taught that this weight was a light weight, and that anything heavier helped decrease VMC speed.
That being said, we got an examiner who is adamant VMC speed is based at Gross weight. Two statements he uses to back that up is:
1, All V speeds are calcualated at max gross weight unless otherwise noted in the POH.
2, "Most unfavorable weight" that is mentioned is most unfavorable in regards to performance, not VMC.
So the question remains: Is "Most Unfavorable weight" heavy or light in regards to 23.149? Source needed.
"(5)The most unfavorable weight in the range of takeoff weights."
I always taught that this weight was a light weight, and that anything heavier helped decrease VMC speed.
That being said, we got an examiner who is adamant VMC speed is based at Gross weight. Two statements he uses to back that up is:
1, All V speeds are calcualated at max gross weight unless otherwise noted in the POH.
2, "Most unfavorable weight" that is mentioned is most unfavorable in regards to performance, not VMC.
So the question remains: Is "Most Unfavorable weight" heavy or light in regards to 23.149? Source needed.