Whether the rack is used to pull up the shell, or support a canoe, I just meant that it is the same general configuration: a separate external framework
connected to the frame beyond the front and back ends of the body... like Rick's awning
I agree that any trailer is too tall for this to be a great idea, and mine is tall enough that it's a lousy idea... but it is
an answer to Paul's question.
I agree with the many people who have suggested that the roof of the tug
is generally a much better place; however, even that may not be great. With my canoe on my Sienna, the stern would prevent use of the van's hatch, if I could ever get the thing up there in the first place. Canoes seem particularly bad, because they don't suit most boat loader designs well (they tend to assume a broad square stern), and tend to be bulky compared to kayaks. The traditional upturned bow and stern (downturned when inverted on the rack) can also get in the way of reasonable manual loading schemes.