Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors
  #136  
Old 08-31-2015, 10:45 PM
SamSam's Avatar
SamSam SamSam is offline
Senior Member
 
Join Date: Feb 2005
Rep: 971 Posts: 3,429
Location: Coastal Georgia
But most transoms will have knees and/or splash wells that reinforce the transom. Plus they're more robust to begin with.
Reply With Quote
  #137  
Old 08-31-2015, 10:51 PM
Mr Efficiency Mr Efficiency is offline
Senior Member
 
Join Date: Oct 2010
Rep: 677 Posts: 5,371
Location: Australia
You're probably right that what he has is too light to be trustworthy, but it may be consistent with the rest of the boat, which has many novel construction features !
Reply With Quote
  #138  
Old 09-01-2015, 03:38 PM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Smile all you like.. Whilst most dream and talk their teeth out, I'm actually doing.
Reply With Quote
  #139  
Old 09-01-2015, 04:53 PM
rasorinc rasorinc is offline
Senior Member
 
Join Date: Nov 2007
Rep: 896 Posts: 1,828
Location: OREGON
rope or chain them to another part of the boat that can take the weight.
__________________
Wood Lasts Generations
Reply With Quote
  #140  
Old 09-01-2015, 04:53 PM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Splash wells

Quote:
Originally Posted by SamSam View Post
But most transoms will have knees and/or splash wells that reinforce the transom. Plus they're more robust to begin with.
I have splash wells in the outboard bracket openings. The shape of the pods also come over the gunnels and will be fibreglassed to these for torsion dispersion through the sides of the hull. Internally the pod is bolted through the existing transom which is 40mm thick from starboard right through to port stern, not just individual sponsons. Once it is fibreglassed, I am not worried about the actual pods themselves, I was just hoping for feedback on the thickness of the actual motor transoms. This hull is 3 and 5 mm marine ply with 3 layers of 600gsm bi axial cloth over it. You could hit it with a sledge hammer and it won't crack. It has Kevlar keel strips to prevent cracking of the keel over time beaching etc. I have removed a lot of the internal bracing ( scantlings I have since learned) and rebuilt these and fibreglassed each compartment with 400gsm chopped strand. After I have run the boat in the lake a few times, I will be fibreglassing a 8 mm marine ply deck onto it, followed by a 600gsm biax layer, a horizontal layer of 3mm ply and another layer of 600gsm . I will then inject foam into each compartment.

Considering the draft on first wetting the hull was 200mm, if I can keep the weight down, I anticipate my skinny keels will be able to plane as well as displace well at low speed, making for a comfortable ride. If I need to, I will install a hydrofoil, but time will tell. The boat did not squat with 300kgs on the transom and no bow counter weight at all. I have been looking at some of the keels of high speed light weight cats like the Blackdog Aluminium cats as well as the shapes of the Thundercats used to race in NZ. I think if I can keep the weight down, I'm going to be ok.

This is a great project and I am learning heaps, I have had to change a lot in the last two years it's being going, but that has all been part of my learning experience. This boat is going to surprise a few people and the first draft is a small indication she may actually be something cool.
Reply With Quote
  #141  
Old 09-01-2015, 07:24 PM
Mr Efficiency Mr Efficiency is offline
Senior Member
 
Join Date: Oct 2010
Rep: 677 Posts: 5,371
Location: Australia
Quote:
Originally Posted by schultzfactor View Post
Smile all you like.. Whilst most dream and talk their teeth out, I'm actually doing.
Yeah yeah, but it is clear from your measured draft of 200mm, this boat is quite light. And the construction methods are unorthodox to say the least. I would be installing some cheap chunky polystyrene blocks inside each hull before you take it anywhere, just in case.
Reply With Quote
  #142  
Old 09-12-2015, 04:40 PM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Console controls

Installed the controls on the Console.
Attached Thumbnails
GOP Home Build-image.jpg  
Reply With Quote
  #143  
Old 01-18-2016, 10:23 PM
Mr Efficiency Mr Efficiency is offline
Senior Member
 
Join Date: Oct 2010
Rep: 677 Posts: 5,371
Location: Australia
Any news ?
Reply With Quote
  #144  
Old 01-21-2016, 03:29 AM
ronieyuan ronieyuan is offline
 
Join Date: May 2008
Rep: 10 Posts: 2
Location: indonesia
hopefully will see the progress
Reply With Quote
  #145  
Old 02-23-2016, 03:08 AM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Progress so far.

Had a caravan get in the way for a few months.
Started working on it again.
Attached Thumbnails
GOP Home Build-image.jpg  
Reply With Quote
  #146  
Old 02-23-2016, 03:10 AM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Rendering

With some touch up
Attached Thumbnails
GOP Home Build-image.jpg  
Reply With Quote
  #147  
Old 06-05-2016, 12:05 AM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Powered launch

Put in the water today, goes great. May need some tinkering with the motor height and definitely needs five blade props. Pretty happy with result so far, she's making all the right noises.
Attached Thumbnails
GOP Home Build-image.png  
Reply With Quote
  #148  
Old 06-05-2016, 12:14 AM
Mr Efficiency Mr Efficiency is offline
Senior Member
 
Join Date: Oct 2010
Rep: 677 Posts: 5,371
Location: Australia
Very exciting ! What was maximum RPM ?
Reply With Quote
  #149  
Old 06-05-2016, 03:20 AM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Not sure I have not connected rev counters yet.
Reply With Quote


  #150  
Old 06-05-2016, 03:29 AM
schultzfactor schultzfactor is offline
Senior Member
 
Join Date: Oct 2013
Rep: 10 Posts: 106
Location: Rotorua New Zealand
Bow

Under power
Attached Thumbnails
GOP Home Build-image.png  
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Suggestions on home build CutOnce Multihulls 30 11-23-2012
12:31 AM 
Dreaming of the home build sport tri again Bigfork Multihulls 2 03-21-2010
05:54 PM 
Dragonfly 920 home build? starboard Multihulls 2 05-11-2007
05:42 AM 
Build boats at home for profit fancyboats Services & Employment 0 03-02-2005
10:29 PM 
gop Fireknight Boat Design 8 02-26-2004
05:25 PM 

Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.

All times are GMT -5. The time now is 10:21 PM.


Powered by: vBulletin Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2017 Boat Design Net