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Fun Side x Side Comparison of two great 27's. Southport and Onslow Bay 27

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Fun Side x Side Comparison of two great 27's. Southport and Onslow Bay 27

Old 12-02-2018, 05:40 AM
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Here is the cockpit of a 27 Onslow without the second livewell. Gain a good bit of useable space without the second one.
Works for me since one large tank is enough for what I need. Few pics from day of sea trial before bringing her home. And In 5 years gonna do it all over again.
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Last edited by PreciousCargo; 12-02-2018 at 05:47 AM.
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Old 12-02-2018, 05:50 AM
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Preciouscargo, absolutely love your set-up! Tackle-station and single well would be perfect for MB.
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Old 12-02-2018, 06:14 AM
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Awesome man! I've got some gas money if you ever need it
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Old 12-02-2018, 07:16 AM
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I agree that losing one of the wells would open it up nicely but it works for us. You can also use the leaning post livewell as seating, mine has a nice pad for the top. Love your stereo set up btw. I’m about to tackle that soon.
Water Bound, lets go break her in a week or so from now on some wahoo, blackfin and bottom critters.
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Old 12-02-2018, 08:14 AM
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Thanks.

Its all how we fish and what works for us. Different species, different priorities.
Its a good problem to have.
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Old 12-02-2018, 08:45 AM
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What options did you go with - looks like a great set up - the 350's have to make her step up quick
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Old 12-02-2018, 10:36 AM
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Originally Posted by JMHawkeye View Post
What options did you go with - looks like a great set up - the 350's have to make her step up quick
Boat is pretty much optioned out except for underwater lights and second live well. I obviously did not choose a colored hull which he offers. But I did have Brad do some addl custom things to suit my fishing needs
Dont want to derail Windham’s thread. So any questions id be happy to answer just PM me. Gotta stay on track

Last edited by PreciousCargo; 12-02-2018 at 01:10 PM.
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Old 12-02-2018, 04:47 PM
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Just stumbled on this thread as well. We have owned our OB27 for just abut a year now. Almost 200 hours on her already. Been in some nasty conditions this year offshore and she ate it up just fine. Looking to hear how the Southport compares. They were on my short list as well. Beautiful boats- thanks for doing the comparison!
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Old 12-02-2018, 07:49 PM
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Well I was finally able to get the OB in the water today in less than ideal conditions. It has poured rain in Charleston the past couple of days but I just couldn't resist taking my first ride. The wife and I waited until the rain "slowed", put our rain gear on, backed her down in the water and fired her up.

The first thought I had was how silent the Vrods are. Honestly much quieter than the Yamaha's I have always loved. I really like the controls and how silky smooth everything is. The Vessel View is very nice as well to monitor all systems.

The boat feels like a brick shithouse in the water. It is so well built that you can jump, stomp, pull on the T-top or anything you want to do and it feels like everything is anchored in concrete. If you ever have a chance to look at the build thread Brad does where he explains step by step how they build a boat you will see why they are so solid. My boat is a 2009 and I guarantee you there is not a single stress crack anywhere. That says a lot.

The boat jumps on plane, running 40mph feels like you're running 25mph and in 15-20 mph SSW winds the boat ripped thru a confused harbor very comfortably. I made some high speed turns and started to get a feel for the boat and it handles everything smoothly. The OB likes to be trimmed out and as soon as you begin to trim the motors the boat starts feeling better and better. On the high speed run I pushed the throttles to the pins and started trimming reaching right at 6400rpm and 65.1mph! Granted we were lite on fuel and had only two people onboard but that's still hauling ass.

I obviously will need to get the boat in the ocean and run it much more to really dial it in and see what it's all about but I am completely impressed so far. It feels like it takes the best characteristics of a Regulator and Contender and combines them in one incredible package. The best of both worlds. Extremely soft and dry ride yet super fast and fuel efficient cruise and top end speeds. More to come soon...
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Old 12-03-2018, 03:56 PM
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Nice Sled, looking forward to progress report on the two.
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Old 01-09-2019, 06:25 PM
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Just to give an update.... I was finally able to get the OB out on a nasty day and see what it was all about. After talking to Brad and several other guys who own or have owned the OB27, they encouraged me to go faster and use more trim than I normally would on previous boats.I have been able to run the boat a few times but only in the rivers and harbor so far so I was excited to have a full day to myself to be able to get in the ocean.

Today it was blowing around 20mph against a strong tide. I ran 38-40mph thru the river and then harbor which is about 4000 rpm burning 19-20gph. So with over 1/2 tank of fuel and lightly loaded I am seeing around 2mpg. The area towards the end of the harbor and to the mouth of the jetties is usually pretty nasty here on an outgoing tide and today was no different. I would estimate 1.5 - 2' at around 4-5 seconds and very confused. I never backed off the throttles or used an ounce of trim tabs, running 38-40mph as smooth as glass. The boat does nothing funny, no porpoising, no slamming, nothing. It just runs smooth and level.

I ran about 7-10 miles out into the ocean. It was probably in the 2.5' range but close together with some steep waves and some bigger waves thrown in. I first ran just on plane with no trim tabs which was around 18mph. No issues it was just very slow and boring. I then came up to around 28-30mph, again very smooth. I pushed back up to around 4000-4100 rpm and saw 35-37mph and the boat was in its comfort zone. Zero trim tabs, the right amount of trim and the boat is soft, level, dry and never pounds. I then ran down sea at around 40-42 mph and the boat just goes. It's hard to explain, it just feels extremely smooth and soft. The boat tracts straight as an arrow and was never pushed around by the seas. I can honestly say it's the best riding boat I've ever been in and I'm sure I'll learn how to run it better with more seat time. In a 2-3' sea with some space between I can imagine you could comfortably run this boat in the 40 plus mph range where you would be running 25-30 in other CC's If there is a fault to the OB27's ride, I haven't found it yet.

Also worth saying, the boat is very stable on the drift. Not sure how Brad accomplishes this with the deadrise it has but it sits down very level in the ocean. Does not roll and pitch hard like a Contender, Seavee, Reg, etc would. Thanks for reading!
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Old 01-09-2019, 06:30 PM
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Pretty strong testimonial there!
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Old 01-09-2019, 06:38 PM
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Originally Posted by N2theblue View Post
Pretty strong testimonial there!
Yeah, it really is hard to describe how good the boat rides. I was honestly sitting on the leaning post with the footrest down enjoying the ride and listening to the new stereo. Once I got the trim and throttles set I just relaxed and watched it do its thing. The way it somehow stays level over the seas makes it feel like you must be in a 31 plus footer. Pretty incredible that a 27 can ride this good.
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Old 01-10-2019, 04:23 AM
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When you get the chance to work them up, I'd love to see your "real world" fuel burn #'s with those 300's and those of the Southport for comparison if you still have them.

While the boats are very similar "fishing" designs, the OB was designed as a fishing boat with a mission to get to the grounds first. I'm actually surprised that they never went back and added a step to the hull of the 23T/27 like they put into their 33. Maybe don't mess with a good thing?
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Old 01-10-2019, 04:49 AM
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Originally Posted by mackerel View Post
When you get the chance to work them up, I'd love to see your "real world" fuel burn #'s with those 300's and those of the Southport for comparison if you still have them.

While the boats are very similar "fishing" designs, the OB was designed as a fishing boat with a mission to get to the grounds first. I'm actually surprised that they never went back and added a step to the hull of the 23T/27 like they put into their 33. Maybe don't mess with a good thing?
I have only really paid attention to the OB at around 4k rpm which is getting me around 1.9- 2mpg in the harbor (right at 40 mph) and around 1.7-1.8mpg in the ocean ( right at 36-37mph) . I do know the SP had almost identical fuel mileage at the same rpm but was around 6-8mph slower at that same rpm. So the advantage I see is that the OB will run faster getting the same fuel mileage. I need to back the OB down to 3500 or so and see what the speed and fuel mileage are. I'm not sure I will gain a lot of fuel mileage though as the hull really works great at 35mph and faster. I will have it loaded heavy this weekend and report back. I have a few videos I will try to post also.
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Old 01-10-2019, 05:16 AM
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Interesting. I knew it would be considerably faster but was expecting higher efficiency as well.

Thanks for the investigative reporting!

-Mac
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Old 01-10-2019, 05:48 AM
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Technically that is higher efficiency if going faster at the same fuel burn!
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Old 01-10-2019, 06:04 AM
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Originally Posted by Windham14 View Post
I have only really paid attention to the OB at around 4k rpm which is getting me around 1.9- 2mpg in the harbor (right at 40 mph) and around 1.7-1.8mpg in the ocean ( right at 36-37mph) . I do know the SP had almost identical fuel mileage at the same rpm but was around 6-8mph slower at that same rpm. So the advantage I see is that the OB will run faster getting the same fuel mileage. I need to back the OB down to 3500 or so and see what the speed and fuel mileage are. I'm not sure I will gain a lot of fuel mileage though as the hull really works great at 35mph and faster. I will have it loaded heavy this weekend and report back. I have a few videos I will try to post also.
Great Numbers, congrats on a spectacular boat.
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Old 01-10-2019, 06:16 AM
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Originally Posted by N2theblue View Post
Technically that is higher efficiency if going faster at the same fuel burn!
If he had said gph instead of mpg then I would agree with you. Bottomline, I was hoping to see that the fuel bill from an offshore run would be reduced, not just that I would have more fun doing it in less time.

My expectation came from the OB weighing in at several hundred # less than the SP, but I guess that is somewhat offset by the slightly increased deadrise.
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Old 01-10-2019, 07:29 AM
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I'm not sure the OB weighs less. It certainly feels heavier when coming out of the water on the trailer. It would be interesting to weigh them both. Being able to get 1.6-1.7mpg in the ocean with a fishing load ( my estimate on what it will be ) while running close to 40mph is pretty incredible. I bet if you pushed the SP to that mph range with similar weight in both boats, it would be lucky to get 1.4-1.5. Not a huge difference in mpg but the SP likes to ride in the ocean around 30mph or less. The OB is a better ride at almost 10mph faster while getting similar fuel numbers. That's pretty awesome.

Just to give an honest opinion, I loved my 26 Regulators, the SP to me was a bit better than the Reg in the ocean and drier. The OB is noticeably better than the Reg. 26 in the ocean and at a much faster cruise speed with better fuel economy. I am not putting down the Reg in any way. They are one of my favorite boats. They ride great in a head sea but I always felt like they fell between waves in a following sea and would have to build rpm and speed back up. The OB does not do this. I am assuming some of that is the hull design and some of it is the ability to run faster with a lot more trim.

Also worth noting is the fact that my boat "only" has twin 300's. A lot of guys with the 350's are seeing even better fuel economy than I am at the same speeds.

Last edited by Windham14; 01-10-2019 at 07:43 AM.
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