...."tunnel ram"....that's the ticket....

....
....take a piece of plastic vacuum cleaner pipe. or
something....set it into the bow....glass it, and paint
it red....heh heh heh....put an experimental sticker
on it (just to way-lay the fears of onlookers), and let
'er rip.....besides, if it won't run for more than a
minute....what good is that ?

....
....let it stick out the front about an inch (so it really
looks ugly)....and you don't need a spray rail....
....just tell 'em "it's supposed to look like that".
Airbob....displacement...?

....