Reply
 
Thread Tools Search this Thread
 
Old 02 February 2009, 07:57   #11
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
The one thing I would say in favour of the Stainless rods is thay make remarkably good anchor points to tie stuff to....... Once had use of a Tiller control SR4 with "avon's knees" - hated every minute of it - not only no lashing points, but nothing to wedge my foot under, so staying on board got quite interesting too!

Mike, your comments about the floor strength - could you move them out so the bottom of the knees are alomng the strong part of the floor? If they are fixed in so the top of the knee is where it is on your pics to take the enigine force, then they slope outwards to the strong point on the floor. You would need to re-make them longer so they reached the strong point on the floor. Did that make sense?
__________________

__________________
9D280 is offline   Reply With Quote
Old 04 February 2009, 15:59   #12
Member
 
Country: Germany
Town: Stuttgart
Boat name: Boat
Make: Avon,Scorpio,535 She
Length: 5m +
Engine: Yam 75HP,Johnson 70
Join Date: Jan 2008
Posts: 133
Quote:
Originally Posted by 9D280 View Post
The one thing I would say in favour of the Stainless rods is thay make remarkably good anchor points to tie stuff to....... Once had use of a Tiller control SR4 with "avon's knees" - hated every minute of it - not only no lashing points, but nothing to wedge my foot under, so staying on board got quite interesting too!

Mike, your comments about the floor strength - could you move them out so the bottom of the knees are alomng the strong part of the floor? If they are fixed in so the top of the knee is where it is on your pics to take the enigine force, then they slope outwards to the strong point on the floor. You would need to re-make them longer so they reached the strong point on the floor. Did that make sense?
Hi, you are right. The knees have to reach the section , where the points for the rods are on the floor. I had the transom cut out, so i have seen the floor from inside. I finished the rods and welded them together. I used a plate with 4 holes each side for the floor and 1 of 11mm for transom , to fix with 4 screws to floor and 1 10mm bolt to the transom. I use a 75hp yam with hydr. trim and a 4 hp merc as a
second engine.
Mike
__________________

__________________
mike-stgt is offline   Reply With Quote
Old 04 February 2009, 23:53   #13
RIBnet supporter
 
bedajim's Avatar
 
Country: UK - England
Town: Cambs/Northants
Length: no boat
Join Date: May 2006
Posts: 2,499
Quote:
Originally Posted by mike-stgt View Post
Hi, you are right. The knees have to reach the section , where the points for the rods are on the floor. I had the transom cut out, so i have seen the floor from inside. I finished the rods and welded them together. I used a plate with 4 holes each side for the floor and 1 of 11mm for transom , to fix with 4 screws to floor and 1 10mm bolt to the transom. I use a 75hp yam with hydr. trim and a 4 hp merc as a
second engine.
Mike
It's a shame you didn't think of it when you had the transom cut out as you could of put fillers in between the hull and the deck for the knees

Jim
__________________
bedajim is offline   Reply With Quote
Old 05 February 2009, 06:30   #14
Member
 
Country: UK - England
Town: Devon. uk
Boat name: bananashark
Make: me
Length: 7m +
Engine: opti 225
Join Date: Apr 2003
Posts: 323
just bear in mind that the knees are in tension, they are hardly ever in compression.
__________________
But I may be talking Rubbish.
Expurt is a drip under pressure, and the difference between an Amateur and a proffesional is getting paid.
kitten is offline   Reply With Quote
Old 05 February 2009, 07:24   #15
Member
 
Country: UK - England
Town: Crawley
Boat name: Cossack
Make: Avon Searider
Length: 5m +
Engine: outboard 75 hp 2 str
MMSI: 235067342
Join Date: Sep 2007
Posts: 45
Just a thought, reinforcing the ply knees with a nicely rounded epoxy fillet along each join would strengthen the join greatly and make certain the end grand on the ply is 100% sealed in.
__________________
Sailmaker is offline   Reply With Quote
Old 05 February 2009, 16:50   #16
Member
 
Country: Germany
Town: Stuttgart
Boat name: Boat
Make: Avon,Scorpio,535 She
Length: 5m +
Engine: Yam 75HP,Johnson 70
Join Date: Jan 2008
Posts: 133
Quote:
Originally Posted by bedajim View Post
It's a shame you didn't think of it when you had the transom cut out as you could of put fillers in between the hull and the deck for the knees

Jim

It s exactly what i think about it.

Mike
__________________
mike-stgt is offline   Reply With Quote
Old 07 February 2009, 14:36   #17
Member
 
Country: UK - England
Town: Bristol
Make: Ribcraft
Length: 5m +
Engine: Yamaha
Join Date: May 2006
Posts: 4,194
are those knees thick enough?? they look mighty thin.
__________________

__________________
matt h is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:22.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.