Bill,

your information is exactly what I needed. I knew the 14mm +/- of clearance was fine with respect to "function". I did not want it to look funny or "pushed out" to far away from the cowl. Scaleman was pleased with the dle 30 which is 162 mm front to back; therefore I went with the dle 35 for power and its actually 2mm shorter @ 160 mm front to back.

As a side note I observed most people placing the prop washer about 1/8th of an inch away from the cowl and it does look nice BUT ive also observed these same planes with some cowl contact.

Let the build begin !