Khamsin Virtual Racecar Challenge 2014

[astracrazy]

It has to obviously be realistic, i use 5mm

i did notice the diffuser thing the other day, but cd is correct, there is a guide in place showing the maximum height.

cd- on that note, why is the main volume taller?

[cdsavage]

Why is the main volume taller than the max diffuser height, you mean? Its no different to the full f1 regs in this respect.

[CAEdevice]

I checked the ruels and the "main_volume": I confirm the everything is correct. Actually in real F1 cars there is little space above the diffuser to mount a small nolder.

[CAEdevice]

In the meanwhile I've run a quick CFD check of my car: normal drag and ridicolous downforce

[astracrazy]

haven't quiet finished mine yet aiming to have it done by end of Jan then spend Feb improving it. Although i'm chuffed with it in terms of smoothness etc. used some new plugins and seem to of really improved compared to last year. Hopefully my design philosophy will pay off - although it doesn't actually effect the results lol

still haven't heard back from Julien, perhaps I miss-understood and he was going away for 2 weeks instead of the 1.

[CAEdevice]

haven't quiet finished mine yet aiming to have it done by end of Jan then spend Feb improving it. Although i'm chuffed with it in terms of smoothness etc. used some new plugins and seem to of really improved compared to last year. Hopefully my design philosophy will pay off - although it doesn't actually effect the results lol

still haven't heard back from Julien, perhaps I miss-understood and he was going away for 2 weeks instead of the 1.

I'm using a mechanical CAD (SpaceClaim, SolidWorks) at the moment, as a consequence my geometry is very rough compared to cars of the 2013 challenge. Anyway I don't think that it has a great impact on CFD results: the problem is that my aerodynamic "concept" is totally non confirmed by CFD

[variante]

ok, as the first thing, one question about legality:
the most forward point of my nosecone is 1290mm ahead of the front wheel centre line. Is this acceptable?

And, since you were talking about cars' stage of development, i'm glad to announce tha ìt mine has been pretty much completed and tested multiple times. I'll reveal it in the next days...hopefully before any actual F1 team.

As an aside note, i confirm that the new wheels/suspensions complex cuts almost 20% of the downforce compared to the complex used in the last season.

[astracrazy]

Im not at my pc to give numbers. As long as its within the main volume its fine

Will be running my first test this week

[astracrazy]

following up in this. so you can run your nose right up to the edge of the main volume, but your crash structure will be no less than 50mm from this line

[cdsavage]

The tip of the nose can be anywhere between 1200 (front of main volume) and 800mm forward of the FWCL, and the 9000 area is measured exactly 50mm behind the tip. The area 50mm behind the tip must be between 135 and 250mm above the RP (but you can add bodywork above it which isnt part of the measured area). Also keep in mind that you need to stay below the diagonal line from K5.2 - this applies to all bodywork.

[astracrazy]

(but you can add bodywork above it which isnt part of the measured area)

In what respect do you mean?

[cdsavage]

Thats for the 'vanity panel' - the 9000mm^2 and 135/250mm dont apply to this, but K5.2 does.

[astracrazy]

i didn't think we put vanity panels in the rules? or at least we didn't directly approach it. But i guess in 5.2 it will just fall under 'bodywork' providing it still falls in 5.5?

[cdsavage]

I dont think there are any changes here compared to the F1 regs other than a change of wording, the F1 regs have a paragraph about it being a "prescribed laminate" etc which has been replaced with the sentence "bodywork is permitted above the impact absorbing structure..."

[astracrazy]

yeah your right

on a side note
anyone who wants to send me there car to check legality, you can send your car in the half state - no need to make it complete as if you are submitting for the challenge. But please include spec parts. Something which will be included later in our submission instructions, but its worth doing for the above. Please colour the faces for all intakes (sidepod and air) blue and cooling red.

You can just e-mail me your question but i can only give my answer best to my interpretation of what you are describing. Obviously everything will be confidential until the first race. Up to then its up to you to 'release' your car