If the off position of the fan switch shunts the motor wires of the fan it
will barley turn at high speed.
Lynn E. Hanover
In a message dated 3/1/2008 1:40:18 A.M. Eastern Standard Time,
WRJJRS@aol.com writes:
Be really careful about fans in your plane. At the higher air
speeds we see a fan can become a real restriction. Also not many fans, (only
the REALLY expensive ones), are designed to be freewheeling in a 200 MPH
airstream! If you do run a fan I suggest that it cover only about 30% of
your radiator so your high speed airflow will be OK. A lot of the guys are
running a spray bar to put a little water on the rad in a idle on the ground.
Kind of a patch but it works. You do of course have to provide a container and
a pump as well. Better to do the rad right the first time.
Bill Jepson