Gooday from Queensland the sunshine state of Australia

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Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Gooday from Queensland the sunshine state of Australia

Postby Reid L » Tue Mar 28, 2017 3:51 am

Hello boatbuilders.

Reid L from North West of Brisbane, Queensland, Australia.
Marine engineer, ex. Container ships, offshore oil and gas
industry and now tug boats.

Currently building ''Gung Ho''. Frames are on the form and
now sorting out the alignment.

Looking forward to sharing the boat building experience.

Regards

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Bill Edmundson
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Re: Gooday from Queensland the sunshine state of Australia

Postby Bill Edmundson » Tue Mar 28, 2017 5:29 am

Reid

Welcome.

I'm trying to finish up a 24' Bartender cuddy cabin. I liked and considered the Gung Ho. I don't have 4' more build space. There is a lot of experience here with this style of boat. We're ready for PICTURES :!:

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
Tahoe 19 Build

Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Re: Gooday from Queensland the sunshine state of Australia

Postby Reid L » Wed Mar 29, 2017 5:51 am

Hello Bill

Thank you for the reply and the welcome.

The frames are Queensland Maple and the floor timbers are Oregon (D.F.).
Keel, chine and sheer will be Silver Quandong, and the batterns Q.M.
The sides and bottom ply will be Hoop Pine.

Currently frames are being aligned.
Since you have built larger boats, is it OK over the next few days if I rattle off some questions.
This is my first build. I have read Glen's book on construction and dredged through various
forums, but I am green as grass in the boat building world.
Regards

Reid



Form under construction. Ones son is a surveyor,
so access to instrumentation makes setup easy.
The form was set level within 0.5 mm over its
entire length.
IMG_0414.JPG



A stack of frames waiting to queue up on the form.
The use of steel for the spreaders was due to the
cost of timber in Australia, just out of control.
IMG_0390.JPG





Setting the frames onto the form underway.
After some time things have gone from
a stack of timber on the floor to a 3 dimensional
shape. It even looks like a boat!.
IMG_0590.JPG

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ian bell
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Location: Chambers Flat 4133 Qld
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Re: Gooday from Queensland the sunshine state of Australia

Postby ian bell » Wed Mar 29, 2017 2:27 pm

Welcome Reid . Hope you live high enough not to get flooded from the rain depression left over from Cyclone Debbie . :mrgreen: Where do you live . I am at Chambers Flat 4133 ,and had 43mm of rain last night .I have built the Renegade ,launched Oct. 2016, I used recycled hoop pine for my frames . There are few more Glen -L builders in Qld ,Jamie is living at Sarina and is building a Belle Illse ,hope he and family are ok . Just heard on tv that 63000 homes in that area are still without power , 3 day's now possibly another week before power will be fixed. What engine will you be using , inboard or out board.
Ian

Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Re: Gooday from Queensland the sunshine state of Australia

Postby Reid L » Wed Mar 29, 2017 6:05 pm

Hello Ian

Thank you also for the welcome.
We are at Mt. Mee, just west of Caboolture

Had a quick run past the rain gauge this morning, it was floating around 70mm, but a lot more to come yet.
Our thoughts and good wishes are with family, friends and the people of North Queensland. Not only do they have to
deal with severe and destructive winds but the following deluge and clean up, soul destroying stuff.

Engines........Twin petrol inboards. Have settled on Ecotec Marine 2.4 litre, 197 BHP, flat torque curve between 2000-5400 RPM,
heat exchanger, water cooled exhaust manifold and riser, MILSPEC wiring for the engine and ECU. The base are G.M.'S global car engine, same as fitted to the Captiva. Graham Rogers in Melbourne developed the conversion under the Ecotec Marine Engine banner, then sold the business to The Jet Boat Base in N.Z.
Out of the box landed in Australia they are $12,000.
The engines are all Aluminium and will be mated up to ZF 25A 2:1 gear box with 8 degree own angle(ZF is aluminium also)
When Glen designed Gung Ho it appears that the Chev small block was the power plant choice as single
or twin screw. Going the Ecotec way we still have reasonable power and less weight over the small block, and more room
in the engine bay.

If it is OK Ian, and like BIll can I bombard you with questions over the next little while. I'm going through the frame alignment process and having a few issues.
Regards

Reid

PS. I had a few goes at this reply, saved one in draft and then lost them.

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hoodman
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Location: Lafayette, IN

Re: Gooday from Queensland the sunshine state of Australia

Postby hoodman » Thu Mar 30, 2017 8:51 am

That's a lot of frames! Looks great and going to be one hell of a boat!

Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Re: Gooday from Queensland the sunshine state of Australia

Postby Reid L » Fri Mar 31, 2017 2:23 am

Thank you Hoodman, 10 frames in all plus transom and the stem and a couple of hairpins.

It's all like a big Mecanno Set, hopefully it keeps me off the streets for a while.

Regards

Reid

Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Re: Gooday from Queensland the sunshine state of Australia

Postby Reid L » Fri Mar 31, 2017 4:38 am

Good Evening All

I am new to boat building and need some help in regards to frame alignment on the form
The boat is Gung Ho.

The storey so far..........

- The supplied patterns have been taken as an absolute
- I have been pedantic with accuracy in the whole process
- I have followed Glens procedure in the frame production
- Frames are now on the form, centered, stood vertically
and set longitudinally. All checked and cross checked.

Design points..........

- The keel from AP to Stn. 7 is straight
- The keel centre is flattened and fitted with a 3/4 '' plywood infill,
and a 3'' wide Skeg
- The patterns show the keel as 'points', which I assume are for the
purpose of alignment

Observations............

- As fitted the keel 'points' between AP and Stn. 7 are way out
of alignment
- Generally fairness of the bottom overall is reasonable
- Frame 3 sides P & S are narrow by 1/4 ''
- Frames have been rechecked against patterns
- Patterns have been checked against the table of offsets
(allowing for bottom, sides and deck sheeting) and are
all generally well outside 1/8'' tolerance

Questions.............

- To get the keel from AP to 7 straight, is it normal/acceptable to
trim the 'points', some of the differences are 1/2''
- In the alignment process is it ok to raise/lower and/or rotate the frame
thus ignoring the relationship between the setup level from the pattern
- For a boat of this size (28 foot planing hull), what tolerance in the fairing
of frames, chine and sheer. In particular the bottom of the hull for straightness.


All advice, help, comments and discussion would be greatly appreciated.

Regards

Reid

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hoodman
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Re: Gooday from Queensland the sunshine state of Australia

Postby hoodman » Fri Mar 31, 2017 6:35 pm

I am a little lost about what you mean by points. I am also not sure what you mean by AP. Are you talking about where the keel rests in a notch in each frame?

You don't want to mess with the setup level. It is better glue strips onto the outside of the frames if you need extra. On a planing hull the aft 1/3 of the boat should be flat fore and aft. On my boat and many others the keel is a straight line from the transom to about 2/3 of the way to the bow. Now the Gung Ho is a big boat so things are probably a little different but the fundamentals should be the same.

Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Re: Gooday from Queensland the sunshine state of Australia

Postby Reid L » Fri Mar 31, 2017 8:30 pm

Hello Matt

Thank you for the reply.

The 'points' are apex of the keel, where the P & S bottom members meet at
the centreline. On the patterns they are quite pronounced, on the plan drawings
due to the flattened keel they are removed. I am assuming they are for alignment.

The AP is aft perpendicular down near the transom.
From the design information from frame 7 to the AP (transom) should be straight.
By eye ball it's reasonable, by string and straight edge its up and down.

I have been pedantic with accuracy, checking and rechecking.
For this size of boat do I ''throw away the micrometer'' so to
speak, and relax with tolerances. Perhaps just rely on the fairing
battern?.

Regards

Reid

Reid L
Posts: 9
Joined: Tue Mar 28, 2017 3:39 am
Location: Mt. Mee, Queensland, Australia

Re: Gooday from Queensland the sunshine state of Australia

Postby Reid L » Tue Apr 04, 2017 4:35 am

Good Evening All

Over the last few days (and between other duties) I have been mulling
over my frame alignment issue.
I used the supplied patterns in my frame making process, but something
caught my attention on the patterns yesterday.

From the plan details the keel is a straight line from Frame 7 to aft.
The frame spacing are all equal increments at the required 29 inches.
I assume then that at each station the keel height from
the base line ( and set up level) would also be in equal increments,
because the keel line is straight and sloping.

Below is a photograph from the patterns of the keel points of
Frames 1 to 7, the setup level is above these but out of view.
Frames 7,6,5,4,3,2 are all equal increments, at 1inch.
Note the gap between 1 and 2, which is much greater at
11/2 inches.

Can some one please advise me if my logic is in error or the
pattern.

Thanks and Regards

Reid

IMG_0613.JPG

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sproggy
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Location: Welwyn Garden City, UK

Re: Gooday from Queensland the sunshine state of Australia

Postby sproggy » Tue Apr 04, 2017 6:29 am

My own logic would tell me the same as yours - that the increased vertical spacing between keel points on frames 1 and 2 indicates that the keel turns upwards between those frames. Where does the keel sit at the transom? If it slopes up from 2 to 1 it should also slope up from 1 to the transom. But remember when you check this that the slope of the transom means it's shown taller (top to bottom) on the plans than it sits on the setup frame.

I expect you also have a sheet that gives you dimensions of the frames - I would check that for the frame 1 dimensions and compare them to the full size lofting.

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Bill Edmundson
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Re: Gooday from Queensland the sunshine state of Australia

Postby Bill Edmundson » Tue Apr 04, 2017 6:57 am

Reid

Try putting a straight edge on the long section drawing from 7 to 2 and see if the keel line curves away from it.

And, yes ''throw away the micrometer'' . It's wood it will move with temp and humidity and internal stresses.

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
Tahoe 19 Build

TomB
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Location: Holland, MI

Re: Gooday from Queensland the sunshine state of Australia

Postby TomB » Tue Apr 04, 2017 7:25 am

One-half inch seems like a lot of fairing. Is the floor timber for frame #1 supposed to be on the opposite side? That would move the keel point further from its neighbor and account for the height change. If that's not it, you have me stumped.

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Bill Edmundson
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Re: Gooday from Queensland the sunshine state of Australia

Postby Bill Edmundson » Tue Apr 04, 2017 7:38 am

Tom may be right. For some designs the frames flip at some point. Look closely at the drawings.

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
Tahoe 19 Build


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