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 Author  Topic: REPLICA 80 foot ELCO UNDER CONSTRUCTION
Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Feb 9, 2018 - 7:31am
Some more photos of what Paul calls his "1:1 scale model".

Paul rigged up a lathe to carve the plug for the 20mm base mold, unfortunately he didn't send a pic of himself covered head to toe in green foam dust after a carving session:

jpSKt.jpg

j4jNH.jpg

The results:

jp0Lc.jpg

Deck Hatches:

jp2T3.jpg

Helm:

j448M.jpg

Rudders:

j4pg4.jpg

Exhaust pipes:

jpPwT.jpg

Exhaust pipes being 3D scanned for use in hull design:

j4Gjs.jpg

jpzaw.jpg



Total Posts: 1935 | Joined: Dec 21, 2006 - 1:30am | IP Logged

mcgovern61

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Post a Reply To This Topic    Reply With Quotes     Edit Message   Posted on: Feb 9, 2018 - 8:01am
Impressive!

Former crew member of the Big Blue Sightseer ex-PT 486

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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Dec 18, 2018 - 3:13am
Paul has been busy and sent me this update on what he calls his 1:1 scale model. Very impressive, thank you Paul!

Hi Jeff.

1959 Cadillac.........

Here are the latest photos of Project 109 progress.
Frames 6-11.
Only 30 more to go!
(better get used to eating SPAM)

The beam on an ELCO 80' is 2 feet wider than the length of a 1959 Cadillac!
(they tell me the Cadillac is 225 inches)
This is a big scale model boat.
I have chosen Caterpillar V12 twin turbo engines over brushless electric motors.
(scale speed)

Please feel free to post the latest photos as you wish.
( would be great click bait with the heading '1959 CADILLAC' )

Jeff, I don't have to tell you that DNV certified marine grade 5083 aluminium is expensive.
That's just the sheet aluminium.
Not counting the CAD/CAM, cutting, shipping, welding / fabrication.
My small brain is hurting.

You are a numbers man Jeff.
Hey, try these exercises.
I would be very interested to have your input on local USA pricing.

1) There are 500 triangle re-enforcing gusset plates 300mm x 300mm
5083 marine grade DNV certified aluminium - 10mm thick material.
(that's 12 inches x 12 inches in the old money)
Kindly research a local supplier costing.
(be sitting down)

2) FRAMES - 5083 marine grade DNV certified x 10mm thick sheets.
Size - 1.83m x 6.10m (that's 6 foot x 20 feet in the old money)
50 x sheets required
That's JUST the frames!

3) FRAME RIDERS (the re-enforcing bands around the internal void on each frame).
Material - 6082 aluminium flat bar - 100mm x 10mm thickness
600 meters required (yes, that IS 600 meters)..........................$.............. ?
(just the accurate folding / bending of these 6-11 frame rider bars had lots of zeros in the invoice)

You can put these questions, or even the whole e-mail on the Forum for comment.
Be interested in the replies.

Stay safe over xmas Jeff and family.
2019 is going to be one hell of a year.

Warmest regards,
Paul.
(model boat builder, scale 1:1)


jqBFI.jpg
jqWxk.jpg
jqqZA.jpg
jqN7n.jpg
jqO9O.jpg
jqyuo.jpg
jqJBZ.jpg


Total Posts: 1935 | Joined: Dec 21, 2006 - 1:30am | IP Logged

bubbletop409

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of bubbletop409  Posted on: Dec 18, 2018 - 10:22am
Holy cow, and I thought some of my PT building projects were ambitious.


Larry
62 Bel-Air
260 Eagle EXP
79 Cole TR-2
2016 Corvette Z51

Total Posts: 160 | Joined: Apr 22, 2013 - 11:48pm | IP Logged

Will Day

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Will Day   Send Email To Will Day Posted on: Dec 23, 2018 - 4:48pm
Simply amazing....

Will

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Gerry McGovern

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Gerry McGovern  Posted on: Dec 6, 2019 - 6:51am
Jeff, have you received any updates recently?

Former crew member of the Big Blue Sightseer ex-PT 486

Total Posts: 70 | Joined: Oct 7, 2016 - 1:47pm | IP Logged

Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Dec 6, 2019 - 8:38am
Hi Gerry, I heard from him November 11th he is still going strong!:

All the frame CAD files done.
Lotta engineering decisions to consider.

Last one the transom.
(the dimensions in the attached pic look ok to you ?)

Next stage nesting to suit 2.0m x 9.0m sheets, prior to water jet cutting.

THEN, obtaining quotes out of China.
And freight, and customs, and import tax, and local tax, and delivery.
THEN, fabrication, waterjetting, welding, riders, storage.
Not going to get much change out of $100,000.
That's modelling.
Always takes longer than estimated, and costs more than is sensible


And November 14th:

Presently on task for transom build.
This entails all the exhaust components - transom pipes, mufflers, bracketing
combined to a trial fit up.
Much more engineering involved than in a 1/35 scale build !
(all SS 316 components must be electrically isolated from aluminium hull - other wise you are making a battery. Galvanic corrosion BIG TIME ! )
(so, many insulators and extra bracketing involved)

Also $$$$ involved in fuel delivery systems.
I have spent thousands of dollars on 316 fuel plumbing components.
Fuel load........4000 liters.
Cat twin turbo V12's chew 297 Liters / hour each @ WOT)

Also working on internal exhaust system.
2 off, 8.0 meters of passivated SS 316 tubing
@ 254mm diameter (10 inch in the old money)
Photo of custom made exhaust coupling rings (316)

Shaft stern tubes (150mm diameter - 6 inch in the old money)
Shaft seals are $2,600 each (2 x required)




Total Posts: 1935 | Joined: Dec 21, 2006 - 1:30am | IP Logged

billpr

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of billpr   Send Email To billpr Posted on: Dec 8, 2019 - 3:09pm
Looking like he's gonna make a good shot at the boat. Best of luck. keep us posted


Bill P Reese

Total Posts: 72 | Joined: Mar 19, 2017 - 4:34pm | IP Logged

Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Dec 22, 2019 - 9:25am
Paul sent me some photos of the finished transom, well done Paul!

jrgLo.jpg

jrljf.jpg

jr1RI.jpg

jrFwn.jpg

jrXXa.jpg

jrMKZ.jpg

Material for the coamings (aluminum) and foot rails (TREX, artificial wood):

jrxd6.jpg

These stainless 10 exhaust elbows are $290 each (ouch), 12 required:

jrsNj.jpg

The poor guy has had to take on 2 part time jobs to help pay for his project. The one as a tour guide driving a 16 ton 4x4 bus over the dunes at Tangalooma Resort, Moreton Island requires a commute aboard some old scow:

jr0w0.jpg

His other job is as a bus driver for drunken Hens parties, the poor poor man:D

jrkTm.jpg

jrULY.jpg

If anybody would like to help with funding, Paul would greatly appreciate it. This is one great big hole in the water for one (semi) retired mechanic to try to fill with money.


Total Posts: 1935 | Joined: Dec 21, 2006 - 1:30am | IP Logged

  Scott C

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Scott C   Send Email To Scott C Posted on: Dec 22, 2019 - 12:45pm
keep up the good work being a welder I know how hard it is to weld aluminum it can blow a hole faster than you can say PT if your not paying attention!! it takes young eyes to see the difference in the puddle before it blows away. all too shiny. I would come help weld but my eyes are way too old. looks like a tough gig driving that gaggle of hens!!

Scott Campbell 2nd gen,PT 248
Ron 20

Total Posts: 64 | Joined: Nov 20, 2019 - 4:34pm | IP Logged

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