Re: [Paddlewise] warning

dmccarty_at_us.ibm.com wrote:
> 
> dmccarty_at_us.ibm.com wrote:
> >
> > I used to carry my canoe on top of my truck using foam blocks and straps
> > running into the cab.  Not the best system but it worked.  I also, as now,
> > attach bow and stern lines.  It takes far more time to run the straps than
> > the bow and stern lines.  I had to do an emergency stop from 65 mph.  The
> > stern lines kept the canoe on the truck.  Period. [snip]
> 
> Dave K wrote...
> |Agreed with the thrust of your well-stated post.  Small error above.  It is
> |the front line (on bow of canoe) which keeps the canoe from sliding forward
> |(relative to the decelerating vehicle) during an emergency stop.  Lines
> |can only exert pulling forces, not pushing forces.
> 
> But when you brake your vehicle things move to the front.  When this
> happened to me, the bow lines where very loose after braking and the stern
> lines where very taut.  I thought the bow lines kept the boat on during
> normal driving by keeping the boat from lifting and being pushed back by
> the airstream.  Stern lines helped during braking.

Dan, I believe the text of mine you have quoted on Paddlewise was part of a
private email to you.  In this case, I do not mind, but here is a small
reminder:  please keep private exchanges between just the two
corresponders.  Thanks.

Re:  which line holds the canoe onto the rack in an E-stop:  while I was
driving down the road yesterday day, I realized the bow line will do that
ONLY if the bow of the canoe extends *forward* of the front bumper!  For my
boats, the bows are well to the rear of the front bumper -- oops!  So, I'm
dead **wrong** about that bow line!

Re:  can the stern line hold the canoe from sliding off the front in an
E-stop:  only if the stern of the canoe is FORWARD of the rear bumper.  On
my vehicles, the stern parts of canoes and kayaks extend way beyond the
rear bumper, so stern lines can not do that.  (Maybe on your (Dan's)
vehicle that is not the case, so that your stern line does keep the canoe
from sliding forward.)

So, with the bow line running forward of the nose of the canoe, and the
stern line running forward of the stern, seems to me NEITHER can supply the
force which keeps the canoe from sliding forward (except to the extent they
contribute to frictional forces between rack and canoe).

Whattaya say, Paddlewisers?  What keeps that blamed canoe up there?

-- 
Dave Kruger
Astoria, OR
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