Go Back   RIBnet Forums > RIB talk > Inflatable boats - SIBs and folding RIBs
Click Here to Login

Reply
 
Thread Tools Search this Thread
 
Old 17 March 2021, 16:35   #1
Member
 
Country: UK - England
Town: Shropshire
Length: 4m +
Join Date: Jan 2021
Posts: 14
getting the floor stringers on - is there a technique?

My Quicksilver 420HD aluminium floored SIB is currently half assembled in the back garden.

It is the first time it has been assembled (partly assembled), and after a fair bit of puffing and sweating, the tubes are about 50% inflated and I have the floor panels in place.

My question is this.... is there a technique I am missing to get the stringers on?
Do you use lubricant (washing up liquid, for example), or is it just use lots and lots of brute force and swearing?

Does it get easier with practice? or with the number of times the boat has been assembled? or both?

Thanks in advance for any guidance offered.
Dave
__________________
nelvar is offline   Reply With Quote
Old 17 March 2021, 17:35   #2
RIBnet admin team
 
Fenlander's Avatar
 
Country: UK - England
Town: Cambridgeshire
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Yam 15 Tohatsu 9.8
Join Date: Nov 2007
Posts: 8,925
SIBs can be tight for the first few times. No not brute force just the knack. 50% up to pressure on the tubes or 50% by volume??... often needs to be the latter.

Have you put the oars under the SIB about 0.5m in towards the centre so the alloy floor is supported just above the ground... that helps loads.
__________________
Fenlander is offline   Reply With Quote
Old 17 March 2021, 17:39   #3
Member
 
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Excel 435
Length: 4m +
Engine: Suzuki Outboard/25/4
Join Date: Oct 2011
Posts: 7,529
RIBase
talcum powder
__________________
jeffstevens763@g is offline   Reply With Quote
Old 17 March 2021, 18:18   #4
Member
 
Country: UK - England
Town: Shropshire
Length: 4m +
Join Date: Jan 2021
Posts: 14
Fenlander - Jeff Stevens - many thanks!

Finally managed it.

It definitely needed something under the side in order to get the stringers on

I am going to let it sit for a couple of days to push out the creases and check it has no leaks.

In the mean time I will order a hand pump that has a pressure gauge on it.
I will also be acquiring a 5 ft long piece of 2x2 wood for next time.

(I do have a Kampa 12v inflator for an inflatable caravan awning, but it is stored with the caravan at the moment).
Attached Thumbnails
Click image for larger version

Name:	IMG_8710.jpg
Views:	66
Size:	251.9 KB
ID:	136586  
__________________
nelvar is offline   Reply With Quote
Old 18 March 2021, 05:45   #5
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
Inflate the boat to operating pressure and let it sit for about a day, then deflate and assemble. Gotta give it time to stretch a bit.
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
office888 is offline   Reply With Quote
Old 18 March 2021, 13:19   #6
Member
 
Country: Ireland
Town: ...
Boat name: none
Make: Honwave 3.5-AE
Length: 3m +
Engine: Mariner 6hp
Join Date: Jul 2011
Posts: 119
Had the same problem with new Honwave. Spray everything liberally with silicon oil. It gets easier are the boat stretches
I bought two lengths of wood on which to assemble boat. This keeps the floors on the same plane and allows one to lie down inside the boat when forcing on the stringers. I found it easier to insert them away from the transom and slide or hammer gently into correct position longitudinally. On the Honwave you hook the groove on the stringer onto the floor and roll the stringer forward into position .
Anyone know a hack to get the last two floors to mate without trapping fingers?
__________________
billows is offline   Reply With Quote
Reply


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




All times are GMT. The time now is 23:52.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.