Wouter
Don't waste your time. Some people just dont get it.
So, what is the error over 500 nautical yards anyway?
Seriously, if we can establish (agree on) a maximum error, I for one am quite happy to subtract it from the measured average speed and call that the speed. Right now we seem unsure if a Tornado or H16 have the record at 24 or 32 knots!
I am not worried about cheating, because in practical terms there seem to be few people who can really make a boat move, so it should be pretty obvious who is dreaming up numbers and who isn't. this is not an entry for the Guinness, but more for the Heineken. HA Ha.