Yeah, adding larger wings so the skipper can move further out (in a static) way is one of these things. No human being can move out quick enough during a gust.




The real description is polair moment of enertia but I sort of slack on these things as otherwise 99 % of the reader would really not know what I'm talking about.

The equation is : increasing the polar moment of enertia => results in a system with a slower response to disturbing influences (gusts) => allows the human controller more or just enough time to think up (reflex really) and implement a control signal to bring back the system to a balance. => thus garanteeing a measure of maneuvrability.




Yes, that is true. Lucky for us the responses to each input are simple integrators with a dominant low order behaviour. 1st or 2nd order at the most). Note how dinghies can sometimes get into a death role which is a strong oscillary response that is beyond human capabilities to control effectively. This is one example of where the system is of an higher order than 2nd order. (2nd order is typically simple mass/acceleration/speed systems like driving a car etc, this is for normal readers)




it is very much the same system BUT one part of the response (Poles) is much more dominant in the whole setup than is the case in dinghies. Therefor you can more neglect the less important parts and totall focus on the dominant part (poles). So same system but with different parameter causing it to appear much more different to a human being.

To give a rough example. Remember how second order systems can cross over from overdamped to underdamped behaviour ? Where the first largely appears to be similar to a 1st order system while the underdamped system is clearly different with its overshoot and oscillary response. We may find that a similar thing is happening when going from dinghy to cats.

Afterall I've been in a death roll on 49-er but never on a catamaran.





Should that read " .. if we are all inside the same bandwidth ?"

Regards,

Wouter