Ugh, this is the part I hate.. Today I will take the Brockway to the
back yard and tie it to a tree. Then I will drive the trailer out from
under it.. that's the easy part. Next I will start to lever and wedge
the hull over with 2x4s and work it up a few inches at a time with
sticks stuck up under the gunnels until I get it up on it's side.
After that, I will carefully work my way to the transom, balancing the
hull on its side and work my way around to the other side. Then I will
let it down as easily as possible until it gets to a point of terminal
force and I just move out of the way.. Fortunately, it's a beefy boat
and can take a real beating. A friend borrowed a smaller one once and
dropped it off the top of his truck at 55 mph.. The thing didn't even
bust, just scratched the heck out of the paint Wish me ducks

Scotty from SmallBoats.com