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I had some friends out at Battle Mountain last month for the speed trials, there were two British teams - The Soup Dragon, designed by Mike Burrows and Glenn Thompson but it was new and didn’t fare too well, only reached about 58mph and proved too unstable for the rider to risk going any faster. It was fixed gear and very minimalist, theoretically capable of 93mph. The Arion team from Liverpool Uni took both the men’s and women’s hand-powered records with Arion 4, a multi-track machine (a trike with two rear wheels and front wheel drive/steering. There were no outright speed records broken due to conditions (a bit windy) and the fact that reaching 90mph is proving a bit of a hurdle.
The current crop of machines (Burrows’ bike aside) are all quite similar in design now, almost all use a camera for vision but rules state there must be a duplicate system in case of failure. There’s some good footage of the event online.
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jj72
I think the major upgrade to the latest record Todd Reichert, riding the ETA was that there is no window and the rider uses a camera to see forward and that gave a smaller cda (about .012 m^2):
Edit: the previous record was also a camera bike but it has side windows if the camera fails. I think allowing cameras is a newish addition to the rules.