To increase the rpm of a variable pitch propeller without moving the power lever, how must the propeller lever be adjusted?

To increase the RPM of a variable pitch propeller without adjusting the power lever, it is essential to understand the relationship between the propeller pitch and its blade angle. Adjusting the propeller lever forward causes the governor weights to move inwards, which results in a decrease in the blade angle.

When the blade angle decreases, the propeller effectively captures more airflow and can spin faster, thereby increasing the RPM. This adjustment allows for a higher rotational speed without changing the power settings, as the engine remains operating at the same throttle position. It is crucial to manipulate the propeller pitch correctly to achieve the desired performance in flight.

In contrast, options that suggest increasing the blade angle or moving the governor weights outwards do not facilitate an increase in RPM under the conditions described in the question. Instead, those actions would lead to a situation that could either maintain or decrease RPM, depending on the other operational parameters of the engine. The key takeaway is that reducing the blade angle is how RPM can be effectively and safely increased in a variable pitch propeller system.