Aerodynamics / Aerodynamic Cost / Aero parts

60mm deep Chinese carbon, V-shaped profile with 20 round spokes, 22mm Challange Chrono tubular, comes up wider than the rim.

My old wheels, if only they'd been faster...

Seriously speaking though, while the HED3 will be faster, I'd probably still use the tubulars for safety reasons...

It's just track league. Deffo run the spokiest, most repairable wheels. Save the fast stuff for open meetings etc

Haha. They worked fine the first night I raced, even won the elimination race, but since then there appears to be something wrong with them because I'm not doing so well!

Tue night is my world champs, but I get your point.

https://youtu.be/hG8rEsbivMw

Special…

I still haven't seen the stage but it seems a little funny that the winner was using their old helmet.

https://www.cyclingnews.com/features/great-gravel-variety-an-sbt-grvl-tech-gallery/

Better.

Shouldn’t that be facing the other way for propulsion?

It actually fires Haribo at rivals.

Organic banana skins surely?

Epic dredge, but due to earlier citation the correct name for "Superman" is actually "Flying Fish"

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https://www.youtube.com/watch?v=3sJRfxqupog

NoPinz Hypersonic
https://nopinz.com/product-tag/hypersonic/

comes with slightly less ridiculous "bra" than thingiebobs

This bra/shapewear is perfect for you, no?

I wear one normally, I actually take it off when racing so my ample man boobs fill the gap between my arms and direct the airflow around my barn-sized thighs.

https://www.youtube.com/watch?v=DKSIt1rprN4

How can I save 47W when I'm only making 50W to start with?

I think you just keep buying Zipp and Enve parts until the bike pedals for you.

Time to say goodbye to my wind tunnel. Demolition started this week.

RIP

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Where was that?

How come? Too old? Too expensive? Under-used?

ponders building my own

It's where I work. Built in 1940 and was the most advanced wind tunnel in the world. I believe the Spitfire and Hurricane were developed in it. There's word of mouth about Concorde's wing, but I think that may have been done elsewhere (maybe Brooklands). All early aero literature refers to the 2.4m tunnel which is this one. There's another smaller concrete tunnel at the end of the block built at the same time, and a third concrete/steel tunnel built in the 1960s.

The Aero Division here was wrapped up in the 1970s but the three tunnels were still in use by various other companies including Williams and McLaren F1 teams up to about 1997. McLaren fitted the middle tunnel with a rolling road at some point. Then Super Aguri F1, Honda's 'B' team, used the middle tunnel between 2006 and 2008. The three tunnels were taken over by BMT sometime in the 2000s and used up until 2016 when BMT moved out. Then the building stood empty.

I was using the building from 2020 until last summer because I had a couple of projects using the space. Obviously, with my past in F1, I was properly fascinated by them and I've done some time crawling round them.

I always knew there was one old wind tunnel on site because you could see it from the access road, but the end two were completely concealed by facade walls and false office fronts, presumably done so to hide them when they were built during wartime. So being as the Estates team had all changed over the previous two decades, I don't think anyone knew about the end two until we opened the building up looking for work space. Power was actually on when I was in the building but unfortunately I couldn't work out the interlock system so I never managed to get it fired up. Whatever control system BMT had been using wasn't in there any more.

Shame to lose them. The big one you can see, No.7 Wind Tunnel, was very advanced. Could do about 120mph and had boundary layer air curtains, heating, cooling, smoke and a huge rotation stage underneath it.

Pics from inside from post 2539 onwards: https://www.lfgss.com/comments/15201900/