Fly by Camel

At the end of an old Muppets episode, I encountered the following joke:

“What’s this camel’s name?” “Sopwith.” “What? Sopwith the Camel?”

Now, does anyone here understand it? Or am I the only one who read “The Big Book of Planes” so many times that it crumbled and a new copy had to be bought?

(The explanation’s here.)