So you can select reverse while in top gear?
Sorry crew, but why would you be able to select (unlock) an unsafe flight mode at any time during the flight envelope.
If the craft is so sophisticated, and feathering intrinsically dangerous (as identified by a thorough design risk assessment) I'd have thought that "
Feather Unlock" might be handled by something a bit more " sophisticated" than a handle.
Giving the crew the ability to UNLOCK in an emergency and outside of the normal envelope is, surely, different from giving them the ability to UNLOCK by mistake and / or inadvertently.