Rollers or Bunks for Flats Flyer

Boat trailers and trailering

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Conrad
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Rollers or Bunks for Flats Flyer

Post by Conrad » Tue Oct 02, 2018 6:58 am

I purchased a used trailer with large rollers on it. It had a 21 foot 92 bay liner but it will be modified to a 20' Flats Flyer... I'm trying to decide: Rollers or bunks? Or combination?
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Keep your lines tight!

Conrad

Consider what God has done: Who can straighten what he has made crooked? Ecc 7:13 :)

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Bill Edmundson
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Re: Rollers or Bunks for Flats Flyer

Post by Bill Edmundson » Tue Oct 02, 2018 7:20 am

Bunks

Too many parts on rollers! It's too easy to miss one going bad. Then you end up with a big gouge in your hull. And rollers tend to dent the hull.

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
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Conrad
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Re: Rollers or Bunks for Flats Flyer

Post by Conrad » Tue Oct 02, 2018 9:08 am

After that, composite or wood? Anyone try both? The obvious goal would be not to replace the wood boards
Keep your lines tight!

Conrad

Consider what God has done: Who can straighten what he has made crooked? Ecc 7:13 :)

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kens
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Re: Rollers or Bunks for Flats Flyer

Post by kens » Tue Oct 02, 2018 4:35 pm

I had a roller trailer once, and never again.
Well, rollers up front on the winch stand I use well,
But rollers on the main hull and aft, no.
Oak is over rated, everything about it takes extra time; then it warps, splits or checks !!! :roll:

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hoodman
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Re: Rollers or Bunks for Flats Flyer

Post by hoodman » Wed Oct 03, 2018 2:18 pm

Pressure treated 2x material is fine. I'm not sure composite lumber would be stiff enough.
Matt

Building a Geronimo......!
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TAB
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Re: Rollers or Bunks for Flats Flyer

Post by TAB » Wed Oct 03, 2018 6:19 pm

Conrad wrote:After that, composite or wood? Anyone try both? The obvious goal would be not to replace the wood boards
composite will not work, it is way too flexible. most of them recommend joists at 12" on center, where standard is 16" a few even require it.

either pt or red wood. fyi, do not use galvanized hard ware on modern pt. it will not last. either use ss( which is really not that much) or use nylon isolators. been more then a few lawsuits in the last few years over it, in the deck building industry. the coated stuff is fine, but honestly you can order ss hardware for very little off line.

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Jimbob
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Re: Rollers or Bunks for Flats Flyer

Post by Jimbob » Thu Oct 04, 2018 1:06 pm

Re: material to use for bunks
I called the people that built my custom trailer (sport boat trailers) and asked them what they used for their bunks. They told me that they use douglas fir. The douglas fir conforms to the boat better. They also said don't use hardwood. In additon, they said that treated wood becomes brittle over time, and don't recommend it.
Hope this helps.
Jim
Jim Neeley
Building a Barrelback in Sacramento, CA
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Conrad
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Re: Rollers or Bunks for Flats Flyer

Post by Conrad » Fri Oct 05, 2018 7:02 am

Thanks everyone!
Keep your lines tight!

Conrad

Consider what God has done: Who can straighten what he has made crooked? Ecc 7:13 :)

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