Dave,

You are right, sorry I left out this information:

Specs are as follows:
Wingspan 65"
Length 50"
Weight 3.5 - 4.5 lbs. - I assume as an electric
Wing area 455 sq. in.
Wing Loading 17.7 - 22.8 oz./sqft. - Again assume as electric

The designer used Speed 480's with Master Airscrew 10 x 6 electric props. He also used 2.5:1 gear boxes. Now can you offer a suggestion.....