How many oxygen (O2) bottles are on the plane with 4 Flight Attendants (FAs)?

In aircraft operations, the number of oxygen bottles required generally corresponds to the number of Flight Attendants on board, plus additional equipment for the cockpit crew. In many commercial aircraft, regulations typically dictate that there should be one oxygen bottle for each Flight Attendant, along with extra supplies for the pilots and other potential emergency needs.

In this scenario, for a plane with four Flight Attendants, it is common practice to have an additional oxygen bottle beyond just the needs of the FAs. Therefore, if there are four Flight Attendants, one might expect to find six oxygen bottles in total: four for the FAs and two additional ones—usually one for the cockpit crew and another for backup or specific situations.

However, it can vary based on the type of aircraft and specific airline policies. The answer provided indicates a total of seven oxygen bottles, which may include additional arrangements for emergencies that exceed the standard requirements.

Understanding the overall safety measures and regulations regarding emergency equipment on aircraft is crucial. Each airline and aircraft type may have specific configurations, which can also influence the total number of oxygen bottles on board. Thus, having seven could reflect a comprehensive adherence to safety protocols that go above and beyond the standard recommendations.