He is human after all! 
I can admit now that I have done that myself!
He is human after all! I can admit now that I have done that myself!
Didn't realise how tiny Lena is
Weight 62 kg
Weight Class 61-70
Height 164 cm
Age 23
Average speed 45.94 knots ( 46.63 46.31 45.9 45.54 45.3 )
Max. 2 sec. (software) 48.26 knots
100 m run 47.54 knots
250 m run 46.48 knots
500 m run 45.41 knots
Nautical mile 0 knots
There's hope for you still Daffy
Very funny Mike....you'll keep
I've just noticed that the nissan Cedric (Bordes) has posted a new 2 sec peak record of 53.71 kn
www.gps-speedsurfing.com/default.aspx?mnu=rankings&Year=-&Tab=0&Gender=0&WeightClass=0&AgeClass=0&SpeedType=8
Who is going to crack the 100Km/h first?
53.71 is 99.47... so close.
My money is on the Terminator but is he wearing a GPS?
Speeds are so close that they are basically the same if they come from just one GPS just within margin of error.
Its great to see that the top speeds are being acheived on such a wide variety of brand of kit.
Hey Magnus, take youre hand off your rdm extension while thinking about Lena. Hows tricks Haggar?
Yes the 58 kph in Dr Speed's diagram is less but not insignificant.
Putting in a few estimates, put in yours if you like, Cd for a person 1.0, cross sectional area presented to wind 0.5 sq metres, density of air 1.2 kg/m^3, 58 kph = 16 m/sec. Put those estimates in the drag equation ie. drag = 1/2 Cd A rho V squared and get drag = 76.8 newtons. (7.8 kg).
Looks like from Dr Speed's diagram only about Sin 45 of that is in direction of travel = 5.46 kg. The other 5.46 kg transverse to the direction of travel adds load to the fin, but the fin has a good lift to drag of say 20:1? 10:1 ?? (I've never been able to wind up a fin designer sufficiently for them to hazard a guess on this ) So maybe add 0.5 kg of extra fin drag to give 6 kg drag opposing the direction of travel. That's a fair bit, how much would streamlining reduce that by?
