In a little home built PD designed cheap version(cheap as in "improved") of a blok art, the following were down loaded from my GPS. Note #118
GPS READOUTS LAKE LEFROY FOR WAYNES MINI
113 8/12/2007 11:04:49 945 ft 157 ft 0:00:03 36 mph 2° true S31 19.893 E121 38.420
114 8/12/2007 11:04:52 945 ft 153 ft 0:00:03 35 mph 14° true S31 19.868 E121 38.421
115 8/12/2007 11:04:55 943 ft 0.1 mi 0:00:15 36 mph 22° true S31 19.843 E121 38.429
116 8/12/2007 11:05:10 937 ft 0.5 mi 0:00:51 37 mph 30° true S31 19.723 E121 38.484

117 8/12/2007 11:06:01 934 ft 0.3 mi 0:00:14 65 mph 229° true S31 19.335 E121 38.751
118 8/12/2007 11:06:15 936 ft 482 ft 0:00:14 23 mph 208° true S31 19.477 E121 38.558
119 8/12/2007 11:06:29 936 ft 0.1 mi 0:00:21 22 mph 211° true S31 19.547 E121 38.514
120 8/12/2007 11:06:50 934 ft 481 ft 0:00:17 19 mph 212° true S31 19.642 E121 38.448
121 8/12/2007 11:07:07 934 ft 61 ft 0:00:03 14 mph 208° true S31 19.709 E121 38.400
ACTIVE LOG 050 454 8/12/2007 10:37:30 1:38:09 22.2 mi 0.3 sq mi 14 mph
.

Your gps must have done a double take. The other figures look correct for a mini.
Anyway, here are a couple of recordings I have done in my class 5 with 4.0m sail.

Seems like 62.5mph is being claimed for Blokart, pod and 2m sail
Red Lake Arizona March 26

http://www.classactionracing.com//articles/2009/ivanpah_2009.aspx#start
go to the link about pushing past 50 on the day1 report.

Also recorded on the NALSA cover page so it would appear to be recognized
www.nalsa.org/

I should hope so on Ivanpah with that wind!. so now we need to see the data and the plot.Imagine if the pilot was laying down in a more stable machine!!!!!!!!

Now I cant dispute that can I.
Well done whoever that was in that Blowie. Great control. It must be alot easyier having all that space to move in.

Just a thought if people are going to record maxium speeds, PLEASE also record the wind speed, the sail size and what the ground surface was, and how soft / hard it is.....
This way we might end up with a good set "ideal" conditions to to do serious speed record attempts in the future.

yep waving it around would probably give it the tatas
[sorry couldnt resist it][}:)]

At Lake Lefroy we have been working on a set of ground rules, classes and a management system to use in September on Lake Lefroy. once the paper work weve come up with has been discussed and approved by the LLLSC committee( soon) we'll put it up or perusal. we have taken some of the Nalsa suggestions into account. The biggest thing is to have a practical system that can be workable with the minimum of officials/marshlls,standing around .
A portable GPS is one of the best things that could have happened in that circumstance