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geoff birds new trike
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Andy TS View Drop Down
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Points: 115 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy TS Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2015 at 9:56am
Is it wrong to drool.... Very nice...

Cant wait to see it in the flesh.
Allewedder A2, Broken Optima Baron Lowracer
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GeoffBird View Drop Down
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Points: 2396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GeoffBird Quote  Post ReplyReply Direct Link To This Post Posted: 30 July 2015 at 11:00pm
For those of you who don't receive the magazine, here's some more pictures:





Update: Unfortunately the resin to make the moulds was delayed at the Channel Tunnel until after the end of my week off so I won't have the opportunity to make the moulds until I get another break. I've redesigned the rear suspension as a full five link system, which, although it looks more complicated, will be easier to make. It also gives good anti-squat geometry. Images to follow in a bit.
Right Time - Right Place - Wrong Speed
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robh24 View Drop Down
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote robh24 Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2015 at 9:42pm
Geoff. Do you have a estimated weight? it these speeds isnt rolling resistance a large drag percentage. Would you end up with a fastermmachine if you sacrifice some areo and complexity for simple and light
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GeoffBird View Drop Down
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Points: 2396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GeoffBird Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2015 at 10:33pm
I'm trying to keep it light - even without suspension. you still need something to attach the wheels to the chassis. Most of the weight and hence the F=MxCrr is the rider! :-)
Right Time - Right Place - Wrong Speed
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robh24 View Drop Down
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote robh24 Quote  Post ReplyReply Direct Link To This Post Posted: 21 August 2015 at 10:33am
I might be in the minority but I would find it fascinating if you could go through the calculations on designing and specifying the tubes on the suspension. I really enjoy the design and build sections of the magazine
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GeoffBird View Drop Down
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Points: 2396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GeoffBird Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2015 at 9:12pm
Hi Rob, might do that at some point. Thanks for your interest.

I've started making the moulds for the bodyshell - pictures below:




 
Right Time - Right Place - Wrong Speed
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GeoffBird View Drop Down
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Points: 2396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GeoffBird Quote  Post ReplyReply Direct Link To This Post Posted: 04 October 2015 at 10:09pm
Making progress with the pattern for the centre section:








Edited by GeoffBird - 04 October 2015 at 10:10pm
Right Time - Right Place - Wrong Speed
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Karl View Drop Down
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Points: 189 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Karl Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2015 at 7:41pm
Geoff, very impressed, I'm presuming Fiona is going to let you continuing the build in the house through winter... wouldn't want any thermal distortion in the shed Wink

I'd best get my skates on and build something to compete against you in.. mind you your performance at the last race I'll have my work cut out keeping up regardless of what your in!!

Karl
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GeoffBird View Drop Down
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Points: 2396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GeoffBird Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2015 at 8:27pm
Thanks Karl. I've retired to the Gazebo now, although it's a bit damp in there. Frantically slapped PU varnish all over it last night. Please note - I don't have a large, well equipped workshop - almost anyone has the facilities to do this stuff :-)

Would be great to see a faired Speedy on the tracks again Karl! They were in their ascendancy when I first attended BHPC races back in the early 1990's. You can get your own back then, although you'll probably only have to wait til Hillingdon to do that...
Right Time - Right Place - Wrong Speed
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AlanGoodman View Drop Down
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Points: 8036 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AlanGoodman Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2015 at 12:19am
I still hope to be racing my faired Speedy next year (although that was the plan this year!)
 

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