What is the lowest RVR minimum authorized for takeoff under Part 91K?

The lowest Runway Visual Range (RVR) minimum authorized for takeoff under Part 91K is indeed 600 feet. This regulation is particularly relevant for aircraft operations that fall under the fractional ownership program. Under Part 91K, standard procedures and requirements for takeoffs are outlined to ensure safety and operational effectiveness, especially when visibility may be compromised.

In the context of RVR, a minimum of 600 feet is established to provide a baseline for safe departures. This figure is significant because it reflects a balance between operational flexibility and the need to maintain safety. For pilots and operators, understanding this minimum is crucial as it impacts decisions regarding takeoff in various weather conditions. It's important to note that while higher RVR values may be associated with certain types of operations, the 600-foot minimum serves as a regulatory threshold for fractional aviation operations under Part 91K.