Nomad Willy
Guru
Seamaster101 wrote;
“ Funny enough no one ever asked what is the goal here?
If the goal is maximum speed for WOT, then one should ail roughly to achieve 150-200 RPM less than what high idle of these engines is. So, if High Idle is 2650RPM, then approx 2500 will give you top speed and the engine will be correctly loaded.”
The goal is to load the engine correctly to a given prop.
High idle can be adjusted by a mechanic. It has nothing to do w loading or power.
The manufacturer is where you go to learn what the rated power is and at what rpm it is achieved. And the rated rpm is where the engine develops maximum power.
And maximum speed will be achieved w the ideal propeller running at rated rpm where max power is available. And if you have the ideal propeller maximum speed will be achieved if loaded to the rated engine speed where maximum power is achieved.
“ Funny enough no one ever asked what is the goal here?
If the goal is maximum speed for WOT, then one should ail roughly to achieve 150-200 RPM less than what high idle of these engines is. So, if High Idle is 2650RPM, then approx 2500 will give you top speed and the engine will be correctly loaded.”
The goal is to load the engine correctly to a given prop.
High idle can be adjusted by a mechanic. It has nothing to do w loading or power.
The manufacturer is where you go to learn what the rated power is and at what rpm it is achieved. And the rated rpm is where the engine develops maximum power.
And maximum speed will be achieved w the ideal propeller running at rated rpm where max power is available. And if you have the ideal propeller maximum speed will be achieved if loaded to the rated engine speed where maximum power is achieved.
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