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Rockingham Slot Car Club invite entries for 2022 running of the
‘BIG BIRDS’ 1/24th scale Grand Prix

On the Saturday afternoon of the traditional
‘DOUBLE TROUBLE’ Vintage race meeting
Rockingham 'Double Trouble' 3rd April 2022


This event was inspired by the 1/32nd scale ‘Earlybird’ events at Wolverhampton and by the Merit 1/24th scale Grand Prix car kits from the 1950s.

Racing will be on the Rockingham Scale Track and there will be the usual two classes;

1950 to 1960 Grand Prix Cars
1961 to 1965 Formula 1 Cars

Event Format:

There will be a Concours competition for each class.
Entrants must use their concours entry in at least 1 race.
We will continue with the Heats & Finals format used last time.

The results will be decided by adding each entrant’s Concours placing to their Race placing in each of the two classes.
Lowest score wins.
In the event of a tie the better Concours result will decide.

Awards for 1st, 2nd, and 3rd in each class plus the Overall Champion.
Anyone entering only one class will not be eligible for the Overall Championship.


Car Rules

1950 to 1960 Grand Prix & Indy Cars


General

Open to models of any car that raced in any Grand Prix, Formula 1 Race or other event counting towards the Drivers World Championship between January 1st 1950 and December 31st 1960.
Note; the Indy 500 counted towards the Drivers World Championship in this period and any car that raced in the 1961 Intercontinental Formula races may also be permitted.

Cars to be built to CSCRA 1/24th GP3 car standards with the following additional rules.

Bodies:
Bodies do not have to be from original Merit kits but must be made from ‘hard’ materials (polystyrene, GRP, casting resin, wood etc).
Vac formed bodies are not permitted in this class.

Motors:
All cars must be powered by a 1960s period open frame motor which must be mounted ‘inline’ (that is at right angles to the rear axle), or by one of the 1960s period motors designed to be used exclusively as ‘sidewinders’ provided that the body covers the motor and gears.
*Open frame motors are defined as – motors having their magnets at one or both ends of the armature shaft, or on one side of the armature for ‘sidewinder’ motors, with iron or steel ‘pole pieces’ either side of the armature.
Magnets may be replaced but must be fitted in the same place as the original.
Double pole pieces are permitted.
Extra magnets are not permitted.
Motors with magnets on both sides of the armature are not permitted.

Ancillaries:
1960s period guides, gears and other ancillaries are preferred but not compulsory.

Tyres:
All cars in this class must be fitted with urethane tyres (Ortmann, Paul Gage, etc) and must comply with the CSCRA minimum diameters and maximum/minimum widths for this class.
Modern super sticky tyres like NSR, Slot.It etc are not permitted.
Sponge/foam tyres and ‘goop’ are not permitted.
Tyres made from or containing silicon must not be used.

RTR Cars:

There are a few Ready-to-Run cars from this period and they can be used in standard form even if they do not comply 100% with the CSCRA Standards.


1961 to 1965 Grand Prix Cars

General

Open to models of any car that raced in any Grand Prix, Formula 1 Race or other event for which Formula 1 cars were eligible between January 1st 1961 and December 31st 1965.
Indy cars will not be eligible in this class.

Cars to be built to CSCRA 1/24th GP4 car standards with the following additional rules.

Bodies:
Scale vac formed bodies as well as the usual ‘hard’ bodies will be permitted in this class.

Motors:
All cars must be powered by a 1960s period motor which must be mounted ‘inline’ (that is at right angles to the rear axle).
Sidewinder motors will not be permitted for this class.
Motors can be either open frame or 1960s period can motors (‘B’ cans, ‘C’ cans and modern 16D motors are not permitted).
Open Frame motors may have the magnets replaced but these must be fitted in the same place as the original. Double pole pieces are permitted. Extra magnets are not permitted.
Can motors may have the magnets exchanged but the replacements must have been available in the 1960s.

Ancillaries:
1960s period guides, gears and other ancillaries are preferred but not compulsory.

Tyres:
Urethane tyres (Ortmann, Paul Gage, etc) are preferred but genuine original rubber tyres may be used on 1960s period Ready-to-Run and kit cars.
Sponge/foam tyres are not permitted even if they were fitted to the original car.
Modern super sticky tyres like NSR, Slot.It etc are not permitted.
Tyres made from or containing silicon must not be used.

RTR Cars:

Any Ready-to-Run Formula 1 car from this period by manufacturers such as Cox, Revell, Scalextric etc will be eligible to enter but must comply with the maximum overall width rule.

Entry fee will be £5 per class – pay on the day.

Please indicate on this thread if you intend to enter.

Doors open at 9am for practice for this event and ‘Double Trouble’
‘Big Birds’ Concours and Racing from 11am.

Cheers.
M ick.

The CSCRA and Rockingham club websites can be accessed by clicking on the links below.
 

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Kitbasher
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4,425 Posts
My Hotel is booked and my fingers are crossed, entry please, all classes, thank you
 
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