Jog my memory- Prospector plank thickness

[Dan Miller]

I've got a student bringing a 17' Prospector to my course at Wooden Boat School in a few weeks that needs 20' or so of planking. I know the ribs are thicker than normal (3/8") and I think the planking is also thicker (3/16"?) but for the life of me I can't remember. Gil will know what I mean (the remembering part).

Thanks,
Dan