Originally Posted by
netstruggler
If you add a mechanism which under some circumstances prevents a propeller being feathered then you have to factor in the risk that a failure of that mechanism prevents feathering when you need it. Adding complexity generally has a downside that needs to be considered.
I agree with you that when adding complexity, you need to consider the possible negatives. However I didn't say you should not allow feather when the AC is airborne, just that there should be a different mechanism to do so and only when both CLs are pulled at same time.