Trogear Bowsprit Install Manual | www.trogear.com | info@trogear.com 5
4. If for some reason the Gap between the Hinge tube and
Hull opening is too large (more than 0.05”): Mix epoxy and
completely coat the drilled holes, working the epoxy into the
surface. Aer the epoxy cures, trim any excess epoxy from the
holes with a round or rotary le. For the best results the gap
between the Hinge Tube and opening should be 0.01”
5. Applying Thickened Structural Epoxy onto the holes and
bonding the tube: Mix Epoxy and completely coat the drilled
holes, working the epoxy into the surface. Coat about 2” of
the Hinge Tube end and insert it into the previously coated
hole and slide it in about a half of its length. Next, also coat
about 2” of the protruding tube end and push and rotate the
tube at the same me unl it protrudes from the opposite
opening. Move and rotate the tube back and forth, and if
necessary add addional Epoxy, to make sure that there is a
proper bond without voids or gaps. (Fig. 10 ) Then, center the tube so that both ends protrude an equal distance
from the hull; you can form a llet around the tube/hull locaons at this me. (Fillets around the tube could be
added later once Epoxy cures). Remove the tape before the epoxy dries.
NOTE: There must be no voids or gaps between Hinge Tube and Hull.
D) Install a Bobstay U Bolt:
The Bobstay is aached on one end to the p of the
Bowsprit and is routed to a U Bolt aached to the bow.
To further decrease bobstay fricon during adjustment,
a low fricon ring can be inserted inside the U Bolt, as
shown here. (Fig. 11)
Select the U Bolt based on hull thickness and choose a Marine
grade Stainless Steel with minimum working load based on your
sails and intended bowsprit use. (Most boats should be ne with
5/16” U Bolts). The angle of the Bobstay is important. For a best
load distribuon, it should at least 45 deg. when the Bowsprit is in
a horizontal posion.
(IMPORTANT: Code 0 type sail generates forces on bobstay twice
as high as an Asymmetrical Spinnaker) – if in doubt, consult your
rigger or sail maker.
Install the U Bolt following the manufacturer’s instrucons.
E) Aaching the Bowsprit:
Note: This is best done with a helper but with a lile skill it
can be done alone too.
1. Align the Bowsprit tube end hole with the Hinge tube
hole and slide the Hinge sha into the tube. Use 5/16
bolts, threads coated with a blue Threadlocker or
equivalent and washers to secure it in place.
(Torque 130 in-lbs)
2. If the Bobstay rigging and Stop strap and Bungee are
not in place yet, temporarily secure the bowsprit in
place with a line. (Fig. 12)
Fig 10: Make sure that there is a proper bond without voids
or gaps.
Fig 11: U Bolt aached to the bow.
Fig 12: Temporarily secure the Bowsprit with a line
