Real issue lies in the stability standard ISO12217-1:2013 in chapter "recess size". Draining time in ISO 11812 is next to nothing with recess size...
You can also go with ISO 12215-5 using flexural strength (usually 15-40 MPa) depending on which PE. Buckling is the issue which shall be taken...
Stern drive unit transmits its mass forces to transom structure so You need to decide or calculate what are accelerations at most (4...6 g?). And...
I just wonder that Speed Froude number 1,1 doesn't add up with the power equation at all. Crafts powered according to the equation LH*BH*m^0,333...
I read this standard recently and I don't think I have got it right? There are lower limits for speed 1,1 Froude and Power, if both exceeded You...
It´s a work of a couple of days or a week if structrure needs to be optimized for ISO, but stability and other issues like powering walk hand in...
http://issuu.com/ottobrandt/docs/terhi_2014_endefr?e=6250167/5877096 Here is one Finnish brand having ABS PU construction.
Downflooding openings is one tricky part for example in case of offset load test. I don't remember wording but something like "where water may...
"CE proof - certification tool" is absolutely pure bullpoop! There is no way to evaluate stability by "excel-software" especially when water in...
We took some sea trials few years back where we had 3D forces and moments recorded between transom and 70...350 hp outboards with special in house...
There are multiple things to be considered. It's about accelerations that a human can stand as well as a craft. Then there are design pressures...
This new recreational directive is not in force in EU until january 2017. So take it easy folks...
So You have some 3000 N outboard hanging from transom and speed up until airborned. Then slamming effect and your back and kidneys says...Autch!...
What are forces to be considered when highpowered outboard powerboat in question? Is it just to find out maximal trust and vertical acceleration...
Maximum propulsion power rating for RIBs and powerboats under 8 m (in EU) is determinated by an "avoidance line test", where a test driver has to...
Suspencion of multihull or monohull could be worth an investment if system would regenerate abrorbed impact energy to for example, electricity. In...
New Recreational Boat Directive is coming into force in Europe at a moment. There is a 3 years period to get production boats to fulfill...
Ment that ISO 12215-5 isn't "one true holy bible" of keeping a boat solid in conditions what so ever... It's great indeed that there are people...
There are several reasons to buy a standard and take a few hours (at least) to get in with the idea of scantlings with spedsheets. There is no use...
