What is Additional Crew Member on Cessna 172? This question is essential for pilots and operators of the renowned Cessna 172, one of the most popular single-engine aircraft in the world. The Additional Crew Member, often abbreviated as ACM, refers to an individual who assists the pilot during flight operations but is not the primary pilot in command. Understanding the role and regulations regarding the Additional Crew Member on Cessna 172 enhances safety, operational efficiency, and compliance with aviation standards.
Additional Crew Member (ACM) Role and Responsibilities on the Cessna 172
The Additional Crew Member (ACM) on the Cessna 172 serves a pivotal function during certain flight operations where the complexity or mission requirements dictate the presence of a second crew member. Typically, the Cessna 172 is a single-pilot aircraft; however, incorporating an ACM adds operational flexibility, especially in training scenarios or during specific certification flights.
The ACM assists with tasks such as radio communications, checklist management, and navigation monitoring. In training settings, an ACM may be a flight instructor or a safety pilot, ensuring the pilot in command maintains proper control and adherence to flight parameters. This role is vital when operating under Visual Flight Rules (VFR) or Instrument Flight Rules (IFR), where workload can increase significantly, and having an Additional Crew Member improves situational awareness.
Operational Regulations and Requirements for the Additional Crew Member on Cessna 172
Regulatory bodies such as the Federal Aviation Administration (FAA) have specific rules concerning the use of an Additional Crew Member (ACM) in aircraft including the Cessna 172. While the aircraft is certified for single-pilot operation under FAR Part 91, certain operations or flight environments may require or recommend an ACM to maintain safety and compliance.
For example, FAR 135 requires an additional crew member for commercial operations when workload or aircraft certification design necessitates it. While the basic Cessna 172 does not mandate this for private use, adding an ACM is common for instructional operations. The Additional Crew Member might also be subject to specific qualifications, including holding the same or higher pilot license and being trained on the specific checklist and emergency procedures relevant to the Cessna 172 model, which has a maximum takeoff weight of 2,450 pounds and a typical cruise speed of 122 knots at 75% power.
Importance of Additional Crew Member Training and Skills
The role of Additional Crew Member (ACM) on the Cessna 172 demands not only basic aviation knowledge but also proficiency in multitasking and communication. The ACM must be well-versed in the aircraft’s systems, which include a Lycoming IO-360-L2A engine producing 180 horsepower and avionics such as the Garmin G1000 glass cockpit available on many models.
Training for an ACM typically covers areas such as situational awareness, handling radio frequencies (commonly 118 MHz to 136 MHz for communication and 108 MHz to 117.95 MHz for navigation), and managing checklists for pre-flight, in-flight, and emergency scenarios. Such training ensures the ACM can support the pilot effectively, contributing to flight safety and efficiency. Integration of the Additional Crew Member into normal operations can reduce pilot fatigue, especially on longer cross-country flights where the Cessna 172 can cover ranges of approximately 640 nautical miles with reserves.
For more detailed information on operational roles and safe flight procedures, you can visit the [FAA’s official website](https://www.faa.gov).
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