"Mike Rapoport" wrote in message hlink.net...
A few hundred pounds empty?

The Osborn tanks I believe weight about an 100 for the pair I thought. I may be
wrong. Maybe it was 50 for the pair. I'll have to dig. I know that the gross weight
increase on the Navion for them is exactly the weight of the fuel in the tanks plus the
weight of the STC kit.