Vmca relationships
Hi
Ok, so I know there are a hundred threads on Vmca and Vmcg, but I cannot find one which answers my problem. I'm sure I understand VMCG but VMCA is driving me nuts.
This is how I understand take-off speeds in order:
Vmcg-V1-Vmu-Vr-Vmca-V2
1. Vmcg must be smaller than V1 since in the event of an engine failure the aircraft needs to be controllable.
2. Then you have V1 decision speed
3. Vmu has to be less than Vr otherwise you risk a tail strike
4. Vr Rotation
5. Vmca must be less than V2 (this is what I have read but my understanding if the relationship between these two speeds is hazy to say the least)
6. V2 - Speed of aircraft at 35ft screen height i.e. the plane is now flyable
My questions:
1.What is the specific differences between Vmca and V2?
2. could Vmca be less than Vmcg since you have use of the ailerons as well as the rudder once airborne?