The phrase "Garbage in, Garbage out" refers to:

The phrase "Garbage in, Garbage out" emphasizes the importance of quality input in any operational context, including aviation. When applied to airmanship, it underscores that if the information fed into the decision-making process is flawed, outdated, or of poor quality, the outcomes will also be ineffective or detrimental. In the context of Remote Pilot License operations, this means that the pilot must ensure that all data, including weather information, airspace restrictions, and technical parameters, is accurate and reliable to ensure safe and effective flight planning and execution.

In aviation, airmanship encompasses not just flying skills but also judgment and decision-making. Thus, the principle reminds pilots to seek quality data and be vigilant in their operational planning and execution. Quality input leads to better assessments, improved situations awareness, and ultimately enhances safety and effectiveness in flight operations. This concept is fundamental in training pilots to think critically about the information they are utilizing in their flight decisions.