answers to common Boomkicker questions:
Is buying a larger Boomkicker model always better?
A: Not necessarily. Using a larger model than needed can result in too
much force making it
difficult to pull on the vang and mainsheet. If however the length of a
larger model will fit the area above the vang better, we can substitute
or exchange the standard spring rods for optional lighter ones.
Do I need a vang with the new track fitting.
A: Although a vang is recommended for sail shape, there is usually
enough travel in the track compared to the original boom fitting, that
a vang is not required.
How do you get
the mast slide in the luff groove when the mast is stepped
gooseneck is in the way?
A: The slide is removable from the fitting and can often be inserted
where the sail
goes in above the gooseneck, then slid down into position. Using string
to lower the slide is one option. Dropping it is another, making sure
slide can not go all the way to the keel.
A round slide came standard, the luff groove requires a flat slide, are
A: We stock flat slides from 1/2" to 1" wide depending on the model.
Slides are 1/8" thick stainless. Measure the inside of the existing
groove or the sail slides to determine the required width. Flat slides
can be bought direct or the standard round slide can be exchanged, the
parts list included with the
Boomkicker has specifics.
The luff groove is not usable or does not exist below the gooseneck.
How is the fitting
A: The mast fitting bracket can be attached directly to the mast using
the same drill and tap provided for installing the boom fitting. Extra
long screws are included if needed. The slide goes unused. For unusual
cases, for example where wiring runs in the luff groove, we can supply
custom brackets to span the luff
There is a groove on the underside of the boom, are there slides
available for the boom
A: Yes. Contact us with the required inside width. Slides are 1/8"
thick stainless, drilled and tapped for the fitting. Shorter screws are
also included. Before ordering, check for access.
The existing gooseneck is adjustable up and down the mast. Is this a
A: The Boomkicker works best with the boom gooseneck fixed at one
location on the mast. After installation, the Boomkicker boom
attachment becomes a lever point. Raise the gooseneck and the aft end
of the boom drops. It is preferred
to select the best gooseneck position, when using the halyard or a
to tighten the luff. Use the downhaul/sailstops to fix the gooseneck in
that position. We also sell slides separately as stops.
The boom rolls
on a gooseneck pin. Is this a problem?
A: Not with the smaller Boomkicker models, but as boats approach 30', to avoid
undue stress on the boom fitting, it is best if booms are
fixed in the upright position. If necessary we have a fitting
which mounts on the mast, under the gooseneck to hold the boom in the
upright position. Learn more.
Does the Boomkicker need to be installed parallel to the vang?
A: Usually it looks best, but it is not essential. So long as there is
room to flex and it provides enough support, the installation is fine.
For more see
For installation, is the best angle to the boom 45 degrees?
A: Actually, the farther out the boom the better the leverage for
support. The best angles to the boom for all models except the two
between 35° and 40° but customers often install them
at angles close to 30°. If shortening the Boomkicker
to fit above the vang, shorten only the minimum amount required. The
are models K0312 and K0400. Both work best if installed between
45°, see their installation instructions for more.
How high should I set the boom for installation?
A: With the new boom track fittings' extended travel, setting the boom
height is not as critical as the original fitting. Generally it should
be slightly above the normal sailing height with consideration given to
reefing, head clearance when in port, lifting the boom in light air to
improve sail shape and different mainsails.
Q: Can I install the Boomkicker upside down so it flexes downward?
A: Yes, the Boomkicker works the same whether it flexes up or down.
Customers have installed it "outside" the vang, flexing it down away
from the vang but vang leads and interference with crew should be
considered. We have also heard of customers running the vang
between the rods, one fitting outside, the other inside the vang. The
two smaller models which use a webbing sling at the boom actually
benefit by flexing down. As the rods flex, the sling becomes more
vertical, better capturing the boom.
When leaving the boat for an extended time, does the Boomkicker need to
be left in the
A: No. Leaving some flex in the spring rods is fine. If left heavily
flexed in hot weather for an extended period, some set could occur.
How much travel or flex is available?
A: If uncut, the spring rods provide around 6 feet of travel at the aft
end of the boom
depending on the setup. Most boats require only a foot or two of
Shortening the spring rods reduces travel. At their minimum lengths,
is still around 3.5' at the aft end of the boom, again,
on the setup.
Can the spring
rods wear out?
A: The indication since 1990 is no.
Once installed, the force is more than I like. Are smaller diameter
A: Yes. If uncut, the spring rods can be exchanged for an optional set,
see the parts sheet included with the Boomkicker for specifics. Rods
can also be purchased on line at the price list or by email and phone.
After using the Boomkicker for a time, I would prefer the boom higher.
Do I need to order longer spring rods or drill more holes.
A: No, not with the new track boom track fitting, just adjust the
clevis pin stop. Additional stop holes can be drilled for the 3/16"
diameter pin using the inscribed line along the track as a guide.
Do I need to increase the purchase of
an existing block and tacke vang?
there was enough
purchase before installation, adding the Boomkicker should not require
but it depends on the spring rods choosen and vang demands.