What is the horsepower being developed if an engine of 98 horsepower maximum is running at 75 percent power?

To determine the horsepower being developed by the engine running at 75 percent power, you start with the maximum horsepower of the engine, which is 98. To find the power at which the engine is currently operating, you multiply the maximum horsepower by the percentage (expressed as a decimal) of power output.

In this case, 75 percent as a decimal is 0.75. Therefore, the calculation will be:

98 horsepower * 0.75 = 73.5 horsepower.

Thus, when the engine operates at 75 percent of its maximum power, it is generating 73.5 horsepower. Therefore, the most accurate representation of the engine's power output under the given conditions is 73.5 horsepower.

This understanding helps in practical aviation maintenance, where knowing how to calculate the power output at varying percentages can assist in engine performance evaluations and ensuring operational efficiency. When initial calculations are misinterpreted or rounded differently, it's crucial to hold true to exact calculations to ensure safety and performance in aviation operations.