Well, to my mind, it's all about competition and competition is everywhere. As an example, it is my observation gleaned from years on the water, that, even without the formalities of organization, if two sailboats are within 50 meters of one another and going in roughly the same direction, they are racing!
One of the things I enjoy about proxy racing is that it offers an opportunity to try out ideas and techniques with the results not dependent on my modest and diminishing driving skills.
With that (rambling) preamble added to the fact that it is not clear that the Miller design would provide any overwhelming competitive advantage, my reaction is a resounding "YES - go for it"
Given Andi's demonstrated abilities, it would be very interesting to see the result.
Been playing with some wheel/tire sizes and chassis variations while looking at ground clearance specs and have come up with a few observations:
Voiturette class - clearance 3 mm. assuming an O/A wheel & tire diameter of 23.4 mm (meets spec and is spot-on for the W165) the clearance for an FC motor (height 15.24 mm), assuming the motor shaft and axle are aligned is (23.4/2) - (15.24/) = 4.08mm. This assumes that the motor is level with the bottom of the chassis. If it is on top of a 1mm chassis, it just makes the spec by 0.08 mm. In the latter case, a rattle pan is out of the question and even in the former, it would need to be quite thin with little movement. The situation is better with an FF 050 motor with 5.8 or 4.8 mm depending on the motor position - "in" or "above" the chassis.
Looking at the GP class - 4.0 mm spec and using a 25 mm tire, we end up with: FC 130 motor (25/2) - (15.24/2) = 7.62mm or 6.62mm if the motor is on top of a 1mm chassis - a little more breathing room and a "Flat 6 could ease the situation further.
The issue here, despite the fact that the 30's car rode higher than current machinery, arises because our motors, unlike the prototypes, are vertically symmetrical with as much below the axle plane as there is above it and 3mm is a lot higher than the spec typically applied to models of more recent cars - ~ 2mm
Correct on both counts - typed on an Apple and missing the "/2" but, in the latter instance, more my sloppy late night typing than an Apple problem. Just as an aside, if one measures the ground clearance of the '39 W154 (mistakenly labeled a W163) per the MM plans, it is 3.27mm.
Post by David Mitcham on Feb 16, 2019 9:08:10 GMT -5
John and I have realised that the rule regarding axle width is different on the Formula 1/32 Scrathcbuild Forum to that on SFI, for which we apologise. The F1 Forum has a rule which sets a maximum width at the tyre bulge of 53mm for GP cars and 50mm for Voiturettes with no track width stipulation where as the SFI rule says the cars must be to 1/32 scale track width plus or minus 1mm and subject to an overall width at the tyre bulge of 53mm and 50mm. To avoid having cars built to different rules which affect performance we have decided that the maximum width rule will apply irrespective of the correct track measurement; that is the maximum width at the tyre bulge for GP cars is 53mm and for Voiturettes 50mm.
We hope this won’t impact entrants builds unduly but if anyone has a real problem please let John or me know by PM and we’ll see how to resolve it.
No problem here but there is an interesting consequence of the SFI rule: Holding the O/A width constant, you can reduce the track measurement, tire center to tire center, by increasing, where allowed, the width of the tire!
Post by David Mitcham on Feb 20, 2019 14:58:49 GMT -5
With just over a month to go before the ITP cars need to be with David Mitcham for scrutineering and the first round of the proxy we though we should set out the arrangements for the races, points scoring, the technical information we would like about each car, and notifying us when you send your car off. Note we have not set out a penalty point schema for cars which fail scrutineering as we hope any discrepancies will be rare and we would rather discuss with entrants how to resolve any issues.
There will be a Concours d'elegance but we are sorting out arrangements for it so details will follow later.
Cars will take part in official practice to determine 'grid positions'. Using the same lane, each car must complete 10 laps. The best lap time from the 10 laps will count as official practice lap time/grid position.
On race day cars will compete in each heat according to their practice times, eg fastest four cars in first set of heats, 2nd fastest in second set of heats etc.
Finishing order for each round, will be determined by distance covered, based on laps within a set amount of time. A minimum of 2.30 to 3.00 minutes racing time per car, per lane is required at each track. Maximum distance covered will be recorded after each heat.
Hosting tracks will be required to accommodate measured lap duration (dividing lap distance into feet or metres) to determine accurate finishing distance in order to establish distances of cars completing races on the same number of laps.
The fastest lap for each car will be recorded. In the case of two or more cars being tied on the same number of laps and parts of a lap their fastest laps will be used to determine their finishing order. If a tie still results then their respective qualifying lap will be used.
Lane and driver rotations to be to be managed by event host.
For sprint events each car will take part in official practice as described above and will then complete two rounds of 15 laps. The total aggregate time taken to complete them will determine the finishing order of the cars. The practice times will determine the running order of the cars - the fastest car running first and the slowest last in the first set of 15 laps and slowest car from practice will run first in the second set of 15 laps and the fastest last.
In the case of two or more cars being tied on the same aggregate time their fastest laps will be used to determine their finishing order. If a tie still results then their respective qualifying lap will be used.
The fastest lap for each car will be recorded.
General Event Conditions
Hand controller/throttles types at each venue will be left to the discretion of the event host.
Tyres will be cleaned before each race using either water and/or tape but no chemicals, solvents or lighter fluid will be used.
Track voltage will be between 10 and 12 volts at the discretion of the host and will remain equal for all lanes throughout an event.
A running inspection of cars will be made before and after each race. Cars may be cleaned and lubricated. No penalties will be incurred for repairs required to keep the cars in the race. This excludes tyre and motor changes. If a motor should fail during qualifying or during the race it can be replaced after the race has been completed without penalty at the entrants expense. Before repairs to any damage to the body or chassis are made, the track host will discuss with the car owner for repair or return instructions.
If a car fails scrutineering before the first round of the proxy the entrant will be contacted and the modification required will be discussed. Where non-compliance with the rules is major, eg the motor is outside the rules, or the tyres are too small or too wide, the car will be sent back to the entrant for modification which may result in missing a round or more of the proxy. If non-compliance is minor it will be at the discretion of the organisers as to whether the car is allowed to compete as it is or whether modification is required.
Track hosts will provide a report from each round with photographs and the detail of each car’s performance in terms of laps completed on each lane and in total, fastest laps and in the case of sprint event the time to complete the 15 lap segments and aggregate time. The points awarded will also be recorded. The proxy organisers will provide championship points up-dates after each round.
The points scoring for each round will be as follows:
Fastest lap of the race will receive a bonus of 2 points.
In the case of a tie at the end of the proxy a count back system will apply. If two or more cars finish on the same points then the car with the most wins will be declared the winner. If still tied then the most second placings will apply and so on and so on down the finishing order. If after that we still have a tie we will determine which car had faster lap times on the various tracks.
Each entrant will be required to provide technical details of their car, or cars, which will be published on the Formula One Thirty Two Scratchbuild Forum and SFI. The data required is as follows:
Car Type/make Car Number Body maker and material Chassis construction and material Gear make and ratio Guide make Tyre make and material front and rear Wheel make front and rear Motor make and type Weight
Photographs will be taken of all the cars prior to the first round and published on the two forums mentioned above.
Each car must have the entrant’s name or initials permanently marked on the bottom of the chassis. This is essential in an event where there are likely to be duplicate car numbers and makes and types of car.
Sending Cars to the Organisers
It would be very helpful if entrants would notify the organisers – John Warren and David Mitcham when they have despatched their car or cars to David for the UK rounds either by PM or a post on the Formula One Thirty Two Scratchbuild Forum or SFI. Please include a return label with your car.
Post by David Mitcham on Feb 22, 2019 13:34:15 GMT -5
John and I are very pleased to announce that there will be an ITP Concours d'Elegance. This will be held at the third round of the ITP, at the Tyneside Slot Car Club. The formal rule is set out below.
At the Tyneside round models will receive votes/points for Concours d'Elegance from the host, drivers and marshal's in attendance. Each car entered will receive points out of twenty based on accuracy, build quality, detail and finish. The GP cars and Voiturettes will be judged together and there will be one Concours prize. The Concours results will standalone and will not be added to the racing results points.