October 22, 2004
Mr. Mike Lotzer
National Sales Manager
Rapco, Inc

Mr. Lotzer,

I have owned a 1964 Cessna 310 for over five years. This aircraft has been meticulously maintained
and pampered since I took possession. The one irritant was, after flying for one hour, it took ten minutes
 to wipe the oil residue from the lower cowls and gear doors from the blow-by of the air-oil separator.

My mechanic/I.A. talked me into removing the wet vacuum pumps and replacing them with Rapco dry
pumps at the last annual. I question why I waited so long. After 15 hours of flight, I have not touched the
lower cowls or gear doors to wipe off excess oil. Why anyone would fly with wet pumps is beyond me.

Mark Whitaker
Marketing Manager
Hansair Logistics