Landracing Forum Home
August 16, 2018, 02:54:05 AM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News:
BACK TO LANDRACING.COM HOMEPAGE
 
   Home   Help Search Calendar Login Register  


(Note: Donations are not tax deductible)







Live Audio Streaming and Archives of Past Events
Next Live Event: TBD
Pages: [1]   Go Down
  Print  
Author Topic: Wind Shield visibility  (Read 498 times)
0 Members and 1 Guest are viewing this topic.
gidge348
Jr. Member
**
Offline Offline

Posts: 41




Ignore
« on: June 27, 2018, 08:16:03 PM »

Hi just wondering if someone can help me, I've been reading the rule book and just looking for a little clarification. A couple of years ago the Honda factory streamliner team got knocked back at Bonneville with concerns about visibility from the car. The rules state that "...shall provide 120 degrees of adequate vision forward". I read this as horizontal vision in other words 60 degrees to the left and 60 degrees to the right, that's all fine. I guess because we are getting lower and lower into the car the distance forward to where we can see the salt is getting further away over the front body work.

My question is, "Is there a mandated vertical angle or visible distance in front of the car that we have to achieve?"

Cheers
Ian...
Logged
Glen
Global Moderator
Hero Member
***
Offline Offline

Age: 83
Location: South West Utah
Posts: 6973

SCTA/BNI timer 1983 to 2004, Retired,. Crew on Tur



« Reply #1 on: June 27, 2018, 08:20:27 PM »

Take some pictures and send to the SCTA car inspectors in the rule book or the SCTA web site.
Logged

Glen
Crew on Turbinator II

South West, Utah
Stainless1
Administrator
Hero Member
***
Offline Offline

Age: 67
Location: Wichita KS
Posts: 6774


Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #2 on: June 27, 2018, 11:50:29 PM »

Hi just wondering if someone can help me, I've been reading the rule book and just looking for a little clarification. A couple of years ago the Honda factory streamliner team got knocked back at Bonneville with concerns about visibility from the car. The rules state that "...shall provide 120 degrees of adequate vision forward". I read this as horizontal vision in other words 60 degrees to the left and 60 degrees to the right, that's all fine. I guess because we are getting lower and lower into the car the distance forward to where we can see the salt is getting further away over the front body work.

My question is, "Is there a mandated vertical angle or visible distance in front of the car that we have to achieve?"

Cheers
Ian...

The short answer is there is nothing in the rules that mandate how close you need to see in front of the car... You need to be able to see the  course markers...  and the course
Logged

Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
gidge348
Jr. Member
**
Offline Offline

Posts: 41




Ignore
« Reply #3 on: June 28, 2018, 05:03:47 AM »

Cheers thanks guys.
Logged
ggl205
Sr. Member
****
Offline Offline

Age: 71
Location: Wichita, Kansas
Posts: 485


G/FL 218.282 since 1995. G/FL record since 1993.




Ignore
« Reply #4 on: June 28, 2018, 08:08:16 AM »

Also, don't forget the horizontal angle. If too shallow, you will have trouble seeing clearly through normal distortion of a perfect sheet of polycarbonate.

John
Logged
Seldom Seen Slim
Administrator
Hero Member
***
Offline Offline

Age: 70
Location: Skandia, Michigan
Posts: 12053


Nancy -- 201.913 mph record on a production ZX15!


WWW
« Reply #5 on: June 28, 2018, 11:18:50 AM »

John said:   "... If too shallow, you will have trouble seeing clearly through normal distortion of a perfect sheet of polycarbonate."

And when you're in line to make your return run on a nice sunny Bonneville morning -- the low sun angle coupled with a wrong-angled windscreen will probably make the return run not quite so fun... rolleyes
Logged

Jon E. Wennerberg
 a/k/a Seldom Seen Slim
 Skandia, Michigan
 (that's way up north)
2 Club member x2
Owner of landracing.com
gidge348
Jr. Member
**
Offline Offline

Posts: 41




Ignore
« Reply #6 on: June 28, 2018, 09:57:29 PM »

Thanks for that guys, just did some calculations on how far in front I can see the salt and it looks like about 11.5 metres or about 38 feet in front. So if the car is doing say 250mph it will cover the 38 feet in 0.09 seconds, so if something is in that space there is no way I can react miss it. Visibility forward of that should be fine.
Logged
Stainless1
Administrator
Hero Member
***
Offline Offline

Age: 67
Location: Wichita KS
Posts: 6774


Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #7 on: June 28, 2018, 11:08:07 PM »

Thanks for that guys, just did some calculations on how far in front I can see the salt and it looks like about 11.5 metres or about 38 feet in front. So if the car is doing say 250mph it will cover the 38 feet in 0.09 seconds, so if something is in that space there is no way I can react miss it. Visibility forward of that should be fine.

Yep... got to watch out for those course markers that jump in front of you....  rolleyes  cheers
Logged

Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!


Google visited last this page August 13, 2018, 01:20:58 PM