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HRCR Rallies
(Historic Rally Car Register)

Tripmeters that display
Distance & Speed ONLY - ALLOWED

Trips with Average Speed - NOT allowed
GPS Sensors - NOT allowed

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HERO Rallies
(Historic Endurance Rally Organisation)

Tripmeters without Average & Speed - ALLOWED
Tripmeters with Average or Speed with a GPS Sensor - ALLOWED
Tripmeters with Average or Speed using a
Non-GPS Sensor = 1 Min Penalty per day

Click on the Images below for more Models and Prices
A simple installation requires a Tripmeter, Sensor & Fuse

Tripmeters & Trip Meters purchased from Don Barrow include a copy of DBs 'Tricks of the Trade' & 'Set up Info' sheet


Important notes for all Rally Organisers and Competitors

These notes have been compiled to assist all Rally Organisers, in order to give the paying Competitor a fair and level playing field when using eligible Tripmeters.

Don Barrow

Don Barrow -  - Organising an event, then read this

Code of Practice

Brantz Sensors are for use with Brantz Tripmeters ONLY, Terratrip Sensors are for use with Terratrip Tripmeters ONLY.
Be warned they operate on different voltages. No claim for damage can be accepted if used with any other products.

Tripmeter Calibration Switch Set-up Instructions
Brantz

At the Start of the measured Test Distance, whether Mile or Kilometre. Line up the centre of the front wheel with the Start marker, ZERO all Displays, set the switches at 100 (Laser 3 set at 0000), drive the set Distance and bring the centre of the front wheel in line with the Finish marker. Make a note of the Recorded Numbers now showing in the Display Windows (e.g.. 06.78 = 678) and re-set the switches exactly to the same numbers, in this example set them to
678.
Hey presto it's as simple as that!

-
Installation Problems see Brantz page.
Terratrip

At the Start of the measured Test Distance, whether Mile or Kilometre. Line up the centre of the front wheel with the Start marker, ZERO all Displays, set the CALC setting digits to 0100, drive the set Distance and bring the centre of the front wheel in line with the Finish marker. Make a note of the Recorded Numbers now showing in the Display Windows (e.g.. 19.76 = 1976) and re-set the CALC setting exactly to the same numbers, in this example set them to
1976.
Hey presto it's as simple as that!

-

Installation Problems see Terratrip page.

Retrotrip

At the Start of the measured Test Distance, whether Mile or Kilometre. Line up the centre of the front wheel with the Start marker, ZERO all Displays, set the switches at 100, drive the set Distance (MAX SPEED 20 Mph) and bring the centre of the front wheel in line with the Finish marker. Make a note of the Recorded Numbers now showing in the Display Windows (e.g.. 06.78 = 678) and re-set the switches exactly to the same numbers, in this example set them to
678.
Hey presto it's as simple as that!

-
Installation Problems see Retrotrip page.

On Brantz & Retrotrip units, if your calibration Set-up is 499 or lower, then increase your accuracy by using a BR52 Pulse Doubler.


Tips & Know How

Calibrating your Electronic Tripmeter for optimum results.

An incorrect calibration setting produces an incorrect readout!

NO Wheelspin! and NO Cutting Corners!

Never assume that your last event or Motorway Test session set-up, is correct.
At the Start of every event always recalibrate your Tripmeter to the organisers Test Distance. (who can guarantee what a measured Mile/Kilometre is? no one)

If the Test Distance is greater than 1 Mile/Kilometre, use a calculator and simply divide the Test Result by the Test Distance. e.g.The Organisers specify a Test Distance of.05.50 Miles/Kilometres. (With the Tripmeter in Calibration Mode the Test Result is showing 37.29 which means it is 3729 measured units, which when divided by 05.50 = a Tripmeter setting of 678. Therefore set the switches at 678 (3 switches or digits) or 0678 (4 switches or digits).

If the Test is circular, e.g. 04.20 Miles/Kilometres, drive the Test Distance non-stop for 5 laps and then divide the Test Result by the 5 laps covered and then by 04.20 to give your correct switch settings. This produces a finer tuned Tripmeter and is well worth the effort.

The Don Barrow 'Code of Practice'

Organisers and Competitors - Tripmeter notes
Please print this article in your Rally Regulations, so that all Competitors know you are using this system.

All events whether Stage, Road or Regularity Rallies should adhere to a standard 'Code of Practice', so that the Competitor who also uses the same 'Code of Practice' can achieve a far better and accurate result.

    Organisers.
Many Organisers fail to grasp the vital importance of providing an exact 100% (cast iron guaranteed) measured distance for all competitors to set up their Tripmeters. Therefore, certain important rules have to be adhered to, these apply whether your are setting up in Kilometres or Miles.

When measuring an exact known Mile or Kilometre, it is imperative to use an Electronic Tripmeter set up in it's Calculation Mode - so that an exact Distance can be recorded and replicated in pulses per Mile or Kilometre. As an example, if an Electronic Tripmeter in Calculation Mode, records 1997 Pulses to the Mile, as against 01.00 Mile (Normal Running Mode measuring Miles) on the Tripmeter Display - you can clearly see that by setting up your new Test Distance in Calculation Mode, using the known 1997 Pulses, will be more accurate than using 100 units to replicate. Because
at 1997 each measured Pulse = 31.72" (2.64' or .81 Metres)
at 100 units each measured 100th of a mile = 633.60" (52.80' or 16.24 Metres)
This shows that an organiser using the Normal Running Mode, could actually proceed beyond the 01.00 Mile displayed on the Tripmeter, by up to 52.79' (16.24 Metres) before the Tripmeter registers 01.01.

Therefore it's imperative to use the Tripmeter in Calculation Mode. Get this wrong - especially on Regularity events and you will have a lot of disgruntled competitors to contend with. It's just as easy to get it right, as it is to get it wrong!

Imagine a Competitor setting up their Electronic Tripmeter exactly to the Organisers set Measured Mile, which is incorporating an error, and then competing on a Regularity Section of 50 Miles in length. Their Timing would be 'way out' let alone having to adjust the Distances in the Road Book to suit all the Junctions etc.

    Important Notes
  • Check your tyre pressures are correct when the tyres are warm
  • I have found that at 29 psi in winter the tyre pressure becomes 32 psi in warmer weather
  • It's no use quoting the measured Distance Starts opposite the telephone box, this is not accurate enough
  • Or that it's at a white marker post in the grass verge, these can be moved by locals or other competitors
  • Although you may be breaking the law, paint the road with a White Line or Dot exactly at the Start and Finish
  • Obviously remove immediately after the event or paint over
  • Or use a permanent roadside fixture to another permanent roadside fixture, irrespective of the Distance
  • If the above Test Distance given is 1.750, ÷ your Trip Readout by 1.750 to give your Trip switch set up
  • Once set, all other Course Cars should set their Tripmeters in Calculation Mode to this Distance
  • And every time any Course Car carries out further surveys on the Route
  • The longer the Test, maybe 2 or 10 Miles, the better the accuracy
  • Ideally the test should be on a straight piece of road
  • However if not
  • Use a racing line on your side of the Road at all times
  • Obey ALL road Markings, especially at T Junctions and X Roads etc
  • Specify the correct lane of approach and route at Roundabouts
  • If using a circular circuit
  • Use anti - clockwise for driving on the LH side of the road (UK) - Use clockwise for RH Countries
  • This ensures the defined route and measured distance is adherred to more closely
  • Use a permanent roadside fixture in a lay-by and back to the same fixture, irrespective of the Distance
  • If the Test Distance is 7.780, ÷ your Trip Readout by 7.780 to give your Trip switch set up per 01.00 Mls / Klms
    1. Route info
  • All Secret Timing Points should be sited exactly at the pre-measured Control Points, mark if possible as above
  • When making a Road Book, simply record the Total Distances only at Junctions/Controls etc
  • By using a DB Tulip Road Book Editor disc, all Inter Distances are automatically generated
    1. Competitors
  • At the Start of every event, always set up your Tripmeter in Calculation Mode to measure the Test Distance
  • Keep a log of all your known Pulse Settings
  • Pay special attention when measuring the Test Distance
  • Don't be satisfied with your first run, always treble check
  • Follow all the above Important Points and you will soon improve your skills
  • Copyright - Don Barrow - 2002 - This article may be re-produced in it's entirety only


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    French - Les rassemblements de rassemblement rassemblant les chronomètres moyens de rassemblement de temporisateurs de rassemblement de boussoles de boussole de voiture de loupes de carte de tableaux de distance de vitesse de Temps de tableaux des tableaux DST de vitesse de régularité de Tripmeter Tripmeters de voyage d'odomètres classiques historiques de mètres dans l'habitacle de voiture allume l'éclairage pour Pacenotes. German - Die Sammlung-Sammlungen, die historische klassische Gleichmässigkeit Tripmeter Tripmeters Reise-Meßinstrument-Entfernungsmesser-durchschnittliche Geschwindigkeit Tabellen TSD Tabellen Zeit Geschwindigkeit Abstand Tabellen Diagramm-Vergrößerungsglas-Auto-Kompass-Kompass-Sammlung-Timer-Sammlung-Stoppuhren im Auto-Cockpit sammeln, beleuchtet Beleuchtung für Pacenotes. Italian - I raduni di raduno che radunano gli Stopwatches medii di raduno dei temporizzatori di raduno delle bussole della bussola dell'automobile dei Magnifiers del programma delle Tabelle di distanza di velocità di Tempo delle Tabelle delle Tabelle DST di velocità di regolarità di Tripmeter Tripmeters di viaggio degli odometri classici storici dei tester nella cabina di guida dell'automobile illumina l'illuminazione per Pacenotes. Portuguese - Os Rallies do Rally que Rallying os cronômetros médios do Rally dos temporizadores do Rally dos compassos do compasso do carro dos Magnifiers do mapa das tabelas da distância da velocidade de Tempo das tabelas do TSD das tabelas da velocidade dos Odometers clássicos Historic dos medidores do desengate de Tripmeter Tripmeters do Regularity na cabina do piloto do carro iluminam o Lighting para Pacenotes. Spanish - Las reuniones de la reunión que reúnen los cronómetros medios de la reunión de los contadores de tiempo de la reunión de los compases del compás del coche de las lupas del mapa de las tablas de la distancia de la velocidad de Tiempo de las tablas del TSD de las tablas de la velocidad de la regularidad de Tripmeter Tripmeters del viaje de los odómetros clásicos históricos de los metros en carlinga del coche encienden la iluminación para Pacenotes.

    Email - Don Barrow

    Don Barrow - Don Barrow - Don Barrow - Don Barrow -

    Motoring News Rally Champion 1963 ~ 1964 ~ 1967 ~ 1970 RAC Rally Champion 1967
    BTRDA Gold Star Rally Champion 1970 BTRDA Silver Star Rally Champion 1962 ~ 1963 ~ 1967

    Don Barrow -  - Back to Stage Start

    Don Barrow the 'King of the Navigators' [Eric Bailey - Motoring Correspondent - The Daily Telegraph 16/12/95]

    © 1999 - Copyright Don Barrow