2006 Dauntless 220 Trailer Bunk Spacing

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
ChrisL
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2006 Dauntless 220 Trailer Bunk Spacing

Postby ChrisL » Wed Sep 08, 2021 3:51 pm

I am buying a 2006 Dauntless 220 this Sunday but bringing my own trailer.

I bought a used EZ Loader bunk trailer made for 21-25 foot boats.

I called Boston Whaler and they sent me a few drawings, but nothing that specifies how far apart the bunks should be.

The bow eye to transom measurement is 19-feet 5-inches. which is exactly how my trailer is currently setup.

The measurement from the back of the bunk to the midpoint between the two wheels is 80" which corresponds to the CG of the boat.

Center to center the bunks are 41-inches. I think this will cause the boat to rest between the first and second hull bottom strakes. I don't think I can get the center bunks closer together, but I could make them farther apart.

[Implied question: What is the correct distance apart for the center bunks?]

I had a 25-foot boat on the trailer. The trailer may be fine without changing anything.

Chris

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Phil T
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Re: 2006 Dauntless 220 trailer bunk spacing

Postby Phil T » Wed Sep 08, 2021 6:03 pm

Sorry to say, there aren't drawings for trailer setup.

Set the bunks where you think and plan to adjust them. The bow stop roller should be adjusted to be touching the top of the boat's bow eye.

I would bring all the tools necessary plus a jack, straps, and blocking to adjust onsite.
1992 Outrage 17
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ChrisL
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Joined: Wed Sep 08, 2021 3:44 pm

Re: 2006 Dauntless 220 Trailer Bunk Spacing

Postby ChrisL » Thu Sep 09, 2021 6:45 pm

Good advice, that is my plan. I was hoping to tweak as much as possible before showing up.

Chris

ChrisL
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Re: 2006 Dauntless 220 Trailer Bunk Spacing

Postby ChrisL » Tue Sep 14, 2021 8:30 pm

The boat fit the trailer perfectly. I just had to slide the winch forward since the DAUNTLESS is transom-heavy. I guess that is expected with a center console.

Chris

jimh
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Re: 2006 Dauntless 220 Trailer Bunk Spacing

Postby jimh » Wed Sep 15, 2021 7:46 am

Winch position on the trailer is not related to how the hull weight is distributed fore-and-aft.

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Phil T
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Re: 2006 Dauntless 220 Trailer Bunk Spacing

Postby Phil T » Wed Sep 15, 2021 8:06 am

Now that you have the boat on the trailer, it is time for final adjustments.

Specifically:

Bunk placement - Ensure bunks are not on a chine.
Transom location - position in relation to the aft cross member, or if an I beam trailer the rear bunks.
Tongue Weight - Measure the tongue weight at the ball to ensure proper load distribution. Adjust boat and/or the axle to ensure the proper 12-18%.
1992 Outrage 17
2019 E-TEC 90
Member since 2003