ORIGINAL: jetmech05
An air dam in front of the exit? any resistriction to air flow once past the motor will be counter productive. The exit must be free.
Actually, an Air Dam produces outside negative or low pressure which draws more air out of the Cowl, does not restrict any airflow it improves it, not counter productive at all, read this thread, makes total sense on how effective air dams work on enclosed cowled engines
http://www.rcuniverse.com/forum/m_11...m.htm#11083204