Jump to content




Photo

The Half-Tonner Grand Prix - Nov 9, 2013


  • Please log in to reply
7 replies to this topic

#1 Dennis David

Dennis David

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,304 posts
  • Joined: 05-April 06
  • Gender:Male
  • Location:SF Bay Area

Posted 22 May 2013 - 10:52 PM

The Northern California Scale Racing Association

is pleased to announce the 

Half-Tonner Grand Prix

for 1.5 Liter Formula 1 cars that raced from 1961-1965

Redhill Raceway - San Anselmo, CA

 

half_tonner.jpg

Oh and grab your Opti-Visors because this event is for those pesky little 1/32 scale cars!


  • 0

 
Dennis David
    
ncsra2.jpg
 
ncsra.jpg
   





#2 Dennis David

Dennis David

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,304 posts
  • Joined: 05-April 06
  • Gender:Male
  • Location:SF Bay Area

Posted 22 May 2013 - 11:02 PM

  • Bodies should represent a 1/32 Formula 1 car of the 1.5 era and can be made from wood, plastic, fiberglass or resin. No vac-formed bodies please. Yes RTRs are OK for this race.
    • It is asked that racers using a severely scale challenged RTR body use the original running gear so as not to gain any advantage from a wider body. (See below for motor rule) The majority of these cars were very skinny!
    • Must be painted in the same overall color of the original car being reproduced. Allowances will be made for RTRs but please no chrome BRMs, Ferraris or other.
    • An eligible car list will be provided to help those historically challenged.
    • The following is our current LEGAL motor list for the race. 
      • BWA NC1
      • BWA 050
      • M/T-1
      • M/T SL-1
      • Ninco NC-1
      • Ninco NC-8
      • Solarbotics RM1A
    • MOST original stock motors that come in modern reproductions by Scalextric, SCX and others are illegal unless prior approval has been given.
    • Chassis can be any material.
    • The spec tire is made by DART Hobbies: Either tire can be used front or rear. (Ex you could use RM0201 for both front and rear)
      • RM0201
      • RM0202
    • Other rules
      • Front wheels and tyres: Minimum diameter 19mm, minimum width 5mm
      • Rear wheels and tyres: Minimum diameter 20mm, maximum width 9mm
      • Minimum ground clearance: 1.5mm
      • Track dimensions must be 1/32 scale within + or 2mm but must not exceed a maximum overall width of 54mm
      • Must have driver and period inserts
      • Must have 3 numbers.
    • I dont think any of these motors provide magnetic traction so no worries there.
    • All rules are subject to change until they are locked down. So you nit pickers out there please speak up or forever hold your piece. Yes I know those are 13in tires and and I do not yet know what their dimensions will be once mounted and yes you can mount them on 15in or even 17in wheels but so as you know during this era the tires did go from very skinny to donuts and the wheels went from 15in to their current 13in size so this is a compromise tire.
    • I may change the minimum diameter once I have samples in hand to allow for some sanding. Oh yes did I mention sanding and truing. This will be allowed but please only use these tires. Any tire treatment, blessing or exorcism can be performed but prior to hitting the track they should be dry.

  • 0

 
Dennis David
    
ncsra2.jpg
 
ncsra.jpg
   


#3 gascarnut

gascarnut

    Posting Leader

  • Full Member
  • PipPipPipPipPipPipPip
  • 3,936 posts
  • Joined: 16-February 06
  • Gender:Male
  • Location:Irvine, CA

Posted 23 May 2013 - 09:47 AM

Dennis,

 

Is there space for some proxy entries? I have some cars from previous series that will fit these rules with a tire change.

 

What is intended by the phrase: "can be made from wood, plastic, fiberglass or resin"?

 

Lexan, PETG, and Butyrate are all plastics.

 

Thanks!


  • 0
Dennis Samson
--------------------------
Scratchbuilding is life
Life is scratchbuilt

Samson Classics

#4 Dennis David

Dennis David

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,304 posts
  • Joined: 05-April 06
  • Gender:Male
  • Location:SF Bay Area

Posted 23 May 2013 - 10:31 AM

Plastic as in Scalextric, SCX, or model kit. No Lexan or equivalent please. I know that there are materials that are not much different than what we are allowing and after holding one of Mike G's paper-thin resin bodies we may institute a minimum weight rule next year. We are simpl- minded folks so we are thinking hardbodies only here.

As far as proxy we would love to have some for the price of return postage. I drove your Group 5 car and it ran real well.


  • 0

 
Dennis David
    
ncsra2.jpg
 
ncsra.jpg
   


#5 gascarnut

gascarnut

    Posting Leader

  • Full Member
  • PipPipPipPipPipPipPip
  • 3,936 posts
  • Joined: 16-February 06
  • Gender:Male
  • Location:Irvine, CA

Posted 23 May 2013 - 10:55 AM

I will see if I can get some Dart tires in time to prepare a cast-resin car.

 

On the "plastic" thing - it's not the material you are trying to control, it's the manufacturing process.

 

So, if you want to oprevent the use of vacuum-formed bodies, then just say "no vac-forms". Lexan can be injection-molded too, as shown by SCX with their clear "Pro" bodies.

 

The rules posted above have a major repetition in them!


  • 0
Dennis Samson
--------------------------
Scratchbuilding is life
Life is scratchbuilt

Samson Classics

#6 Dennis David

Dennis David

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,304 posts
  • Joined: 05-April 06
  • Gender:Male
  • Location:SF Bay Area

Posted 23 May 2013 - 11:11 AM

The rules are from an internal club email so includes some of our normal repartee.
  • 0

 
Dennis David
    
ncsra2.jpg
 
ncsra.jpg
   


#7 Dennis David

Dennis David

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,304 posts
  • Joined: 05-April 06
  • Gender:Male
  • Location:SF Bay Area

Posted 23 May 2013 - 04:01 PM

Proxies are welcome!
  • 0

 
Dennis David
    
ncsra2.jpg
 
ncsra.jpg
   


#8 Dennis David

Dennis David

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,304 posts
  • Joined: 05-April 06
  • Gender:Male
  • Location:SF Bay Area

Posted 07 June 2013 - 10:33 PM

I just got in the spec tires and they are tiny but they will fit our spec. The only thing I didn't realize is that they are made for wheels without ribs.

BW13-200-093-375
13" Narrow Wheel for 3/32" (Small Insert) 
.200" wide (narrow) .093" (3/32") bore - for 3/32" drill blank axles
Takes a .375" BWA small insert

BW13-300-093-375
13" Medium Wheel for 3/32" (Small Insert) 
.300" wide (medium) .093" (3/32") bore - for 3/32" drill blank axles
Takes a .375" BWA small insert

I bough a two pair of 13-inch wheels from Dart Hobbies and they fit like a glove. If any sanding is required it should not be much.

  • 0

 
Dennis David
    
ncsra2.jpg
 
ncsra.jpg
   






Electric Dreams Online Shop