Originally Posted by alice
what are the changes
Sorry the question wasn't very clear
Not sure when it happened but I have noticed between RB8 and now the classes in marathon have changed from power to weight ratios to length times weight ratios.
Seems very strange to me as I thought the RYA and I would presume the UIM are there to improve the safety of the sport without medling with the sport.
As we all know the performance of any vehicle is dependant on power to weight ratios it now appears to me that this is not the case.
With the development of hull designs the boats are going quicker with the same power and engines are becoming more powerfull.
As an example you could have 11.3 meter boat in class A that only has to weigh 4,633 kg put could have twin 1350hp engines given a power to weight ratio of 1.72 kg per hp. (probably as quick as Richard Carr P1 when not restricted 130mph ish)
Another example was our 10.5m RB8 rib the max HP we could have before was 1,000hp before we would have to add weight now we could easily chuck in twin Ilmores 1450hp + 200kg (not sure that would be wise)
Another point regarding weight is that a marathon boat does not want to break when your 20 miles off shore and safety cover is limited surely boats should be built like brick shi_ houses
Having watched many motor sports over the years the organisers are constantly slowing cars down so that safety is not compromised by development.
eg the Lemans 24 had to put chicanes in the mulsanne straight, F1 reduced down force and tyre widths ect.
It appears to me that on one hand the RYA have toughened up on Licenses, I guess to improve the quality of drivers (RB8 and CTC since has had a great safety record with the old system) but given no regard to the speed of which someone could rig a boat in marathon.
I would be interested in other peoples views or am I talking out my ass again