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Chassis update
Cita - 24/11/04 at 08:23 AM

Rescued attachment Dscn2573.jpg
Rescued attachment Dscn2573.jpg


nick205 - 24/11/04 at 08:52 AM

I Like

Nice garage too


ned - 24/11/04 at 09:26 AM

either steering wheel bulkhead is very high or the rollbar is very low, have you checked what the visibility fom the cockpit is going to be like when seated? apart from that looks like its coming along well..

Ned.


MikeR - 24/11/04 at 09:29 AM

This might seem a silly question (or 2)but ....

the opening at the top seems rather small, can you climb in?

How are you going to stop your head getting to know the side rails in a very intimate manner when corning hard / if you have a bump?


Browser - 24/11/04 at 10:26 AM

Nice! I especially like the invisible rear wishbones


ned - 24/11/04 at 10:37 AM

quote:
Originally posted by Browser
Nice! I especially like the invisible rear wishbones

I prefer the invisible engine

oh no, it's just morphed outside the car lol.


Not trying ot pick holes, just offer constructive comments, the shock angles looks slightly shallow, presumably the spring rates will need to be quite high to be effective? Also probably not he final wheels, but I'd guess smaller wheels (diameter, not width) would help both ride height, overall and unsprung weight.

[Edited on 24/11/04 by ned]


MikeR - 24/11/04 at 12:39 PM

you know, i love this forum. So many people with so much knowledge..... its just great

anyway, just remembered something from the tv the other night about car crashes. Until recently (1980's?) lots of people where loosing the ankles in formula 1 type car crashes. Basically the problem was the feet extending infront of the line between the front wheels. In a crash there wasn't a lot to absorb the inpact. I seem to remember a quote like at 30mph the resultant shock the drivers feet where taking was like jumping off a 45 foot building!


David Jenkins - 24/11/04 at 12:44 PM

That looks like a tough chassis - I look forward to seeing it as it progresses!

David


chrisf - 24/11/04 at 02:21 PM

Cita, thanks for the updates. I happen to like the stance, where only his head will pop up. Certainly will be a fun car to drive.

--Chris


Rob Lane - 24/11/04 at 05:14 PM

You may get an odd scrutineer who will not like the sidebars at head height. They will not let you compete on safety grounds, seen it before, it can be disheartening. Their word is final.

I also agree (sorry) regarding feet in front of wheel line. I've seen two competition accidents now, both resulting in broken legs/ankles.

It's one of the reasons for the carbon fibre honeycomb fronts on single seaters.

Love the design though.

I'm looking for a new project and I'm considering a bike/trike. Bike front and engine, rear axle type. Unfortunately I'm not all that clued up on bikes.

[Edited on 24/11/04 by Rob Lane]


Cita - 24/11/04 at 06:25 PM

Thanks for the comments guys!
I'll try to answer some questions.
first-of course i can get in the car aldo it takes a (very) little effort.The gap in the front of the cockpit is much wider than at the rear bulkhead.
The side bars are just above shoulder hight and maby i have to raise the roll hoop just a little but my head will deff. not hit the side bars in a crash unless my neck is broken and my head will make a 90° bend sideways but in that case ...it wont matter i guess
My feet will be in the cockpit box which ends approx at the shocks.The triangular structure in front is to protect my feet.
The rear wisbones...they are not there cause i still dont know what type of rear axle to use.
I will try to make a pic with me in the car so you can have an idea about size and protection of the cockpit.


Staple balls - 24/11/04 at 06:33 PM

looks good to me, but i'm gonna agree with the others on the feet/front end.

If (or when) you do crash this thing, you are going to be the crumple zone and i'd worry that you'd do some pretty serious damage to yourself in such a situation.

strength and stiffness is good where it's needed, but weak spots are essential for your survival when the brown stuff hits the fan.


drmike54 - 24/11/04 at 08:42 PM

I like this. I am thinking about something along those lines as a gokart for my kids.


MikeR - 24/11/04 at 09:17 PM

ok, i'm no expert but ....... from your previous comments i'd remove the very first lot of triangulation - let it crumple, its not doing anything to the suspension strength. The second lot of triangulation that meets the first on the front, take that to the sides, it can them help transfer the forces from the shock / wheel.

Otherwise ...... i like it. I've been musing over a single seater for ages (still haven't completed the locost yet!) and your design looks pretty neat!


Cita - 25/11/04 at 09:56 PM

Rescued attachment DSCN2571.JPG
Rescued attachment DSCN2571.JPG


phelpsa - 25/11/04 at 10:05 PM

The roof seems to be in a pile in your garage cita!


ZEN - 25/11/04 at 10:10 PM

@Cita
Is the chassi your own design?


Cita - 26/11/04 at 06:20 AM

Yes it's my own "design" Zen if that's what you can call it.


Rob Lane - 26/11/04 at 02:36 PM

Love the Locost seat, the thigh support is just perfect. Watch out for splinters


Micke Fredriksson - 26/11/04 at 06:35 PM

We want to se more PICS.!!!

What is the SPEC. engine etc.??? Tell us more!
Exiting projekt there!!!


Cita - 26/11/04 at 07:46 PM

Hi Micke,there are a few more pictures in my archive.The engine i intend to use is a Honda CR 500 single cilinder.


Micke Fredriksson - 26/11/04 at 08:37 PM

Ahhhh!! Very nice!! Is it going to be roadlegal?


Mark Allanson - 26/11/04 at 09:05 PM

Tried to download your avi, I am missing a codec, any ideas which one?


Cita - 26/11/04 at 09:05 PM

I dont think so
With no lights-indicators-cycle wings-horn-reverse light etc... etc... etc...
It's just a fun project and hopefully will be used some day to do some hillclimbing.
I'm still way under the 250£ mark of "Uncle Ron" though


Micke Fredriksson - 26/11/04 at 11:04 PM

quote:
Originally posted by Mark Allanson
Tried to download your avi, I am missing a codec, any ideas which one?


sorry messing up yor thred....

Here´s a player they say is working:
http://www.videolan.org/vlc/

Or perhaps download this:
http://www.divx.com/
good luck!