Originally Posted by Jon Tallis
Foam collars for ribs have been around a long time. Notable applications (in the UK) are the RNLI's E-Class lifeboats and the Royal Marines rigid raiding craft. These are built by Holyhead marine services on Anglesea. If you want to commission something then any good naval architect will be able to design it for you. If you want to go the Semi-bespoke route, then talk to a good rib-builder about fitting one of their standard designs with foam or foam/air collars. Look at Henshaw inflatables website for ideas.
Beware of anything built in China!
I've never owned a foam collar filled RIB myself but a friend bought an uncomissioned military Sea Rider designed and manufactured for Military use with solid collars.
When I saw it the thing looked amazing with the over engineered military spec and Tactical add on's....and I thought (as well as him) he'd landed a Bargain.
There was however a pretty big problem....that first showed itself when launching for the first time when it
didnt want to slide off the Bunk trailer it came with
Once in the water the thing would hardly get on the Plane....despite being quite adequately powered!
The problem was (after a while) finally diagnosed...the thing was completely waterlogged internally the Foam was now acting like a sponge and as a consequence ...weighed a Ton!!
He tried all sorts to remove the water but to no avail...and in the end px'd it for another conventional Air filled RIB.
As said it looked in GREAT Nick!..Food for thought maybe
I'm intrieged as to why you would view the Chinese build quality potential of a Solid collar RIB nesesarally to be of any higher quality than that of a conventional Chinese built RIB?
Personally like the previous poster I'd steer well clear....especially for commercial useage.