Need Extra Range?

[gkey]

I hope this is not a hoax, because it might be a darn good solution for quickly converting a plane for really long distances. Sure beats connecting and setting up a turtle pack, and does not eat up your available space inside the cabin! And since they fit very neatly under the wing like no other Cessna can brag about, they also would have minimal influence on the C of G. Overloading the plane might be an issue...

I wonder, are these available for purchase? Do they come in different sizes? Where did you get this picture from?