However, it's important to note that there are exceptions to this rule. Some large planes, such as the Concorde and Boeing 747, are capable of reaching supersonic speeds, making them faster than most smaller planes. Additionally, some smaller planes, such as ultralights, are designed for slow flight and may not be able to reach the same speeds as larger planes.
Therefore, while smaller planes are generally faster than larger planes, it is not always the case and depends on the specific aircraft being compared.