Originally Posted by
meleagertoo
Never come across vmc (sic) other than as vis. met. conditions but that's universally rendered as VMC. The asymmetric case has always been (and is only) Vmca or Vmcg. It would make complete sense if the correct acronym was used...and none at all when it isn't! Uncapitalised 'vmc' - and missing the a or g is a meaningless acronym. Even so I've never come across the result of exceeding that limit having a name, nor ever imagined it needed one. Is this a US expression? It certainly isn't widely known in UK or European aviation.
You run into Vmc far more often in the GA world. It's crucial in a light twin because the donks are little and a small engine doesn't produce enough power for level flight at low speeds...so you need to be really alert on takeoffs and landings.
Most commercial aircraft don't have Vmc limits because their single engines have enough power to sustain flight at any speed.
There's still Aztecs and Navajos all over the US so it's important to know. But I have no idea if the aircraft in this incident is Vmc rated or not.