RCU Forums - View Single Post - Creek Hobbies or Giants Scale Planes E-540?
Old 01-27-2003 | 03:51 AM
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h82crash
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Default Creek Hobbies or Giants Scale Planes E-540?

The rule of thumb is the exit has to be at least 3x the intake for proper airflow for cooling. I usually cut a big half circle at the rear of the cowl bottom.