Message Board - Cricket: Rolling - what is a pass?
9 Feb 2009 by EDS
Rolling….
Ok this may sound daft but what constitutes a pass?
Is it from point A to B, or is it A to B and then back along the same line?
Still Learning
9 Feb 2009 by pacman75cricket
One pass would be A to B then back along the same line.
9 Feb 2009 by martin deans
One pass when ref the rolling research from cranfield uni is from a to b only. To come back down the same line classes as 2 passes.
9 Feb 2009 by Chris Thornton
I think I'll "pass" on this one!!!!!
"He not busy being born is busy dying"
9 Feb 2009 by EDS
and then what if you use a single as oppossed to a twin drum - is that only 1/2 a pass? Seriously though you see mention of the number of passes but surely it does make a difference? and this is without taking into account contact area, pressure etc ! 
Still Learning
9 Feb 2009 by mario Last edited 9 Feb 2009
I recall Alex Vickers of Cranfield University at an IOG event held at Durham CCC saying that from A to B is one pass with a single roller but constitutes two passes if carried out with a tandem roller.
In essence, if you make a sweep up and down on the same line with an Autoroller as pictured or similar type of machine, this would be four passes.
I know no boundaries.
9 Feb 2009 by Grassman2011
My memory is clouded Ken, but then it would be, but i have a horrible suspision that you might be right. I will have to check.
10 Feb 2009 by Minormorris64
When recording my rolling in the diary I use one pass as being from A to B.
What goes around, comes around
10 Feb 2009 by pacman75cricket
I stand corrected then guys message board useful as always
10 Feb 2009 by EDS
Minormorris64
aah..but is that actually 2 passes with a twin drum as suggested by Mario?
Still Learning
10 Feb 2009 by Minormorris64
I would say yes, but I am a poor relation as I only possess my wonderful Stothert & Pitt 32rd 
and its single drum.
Roll on the end of March/ start of April I say.
What goes around, comes around
10 Feb 2009 by pete shipton Last edited 10 Feb 2009
A roller pass in the Cranfield research was one roller drum driven over an area of the pitch – I should know as I did the research ! If you are rolling with a two drum roller then this is theoretically two roller passes. This does appear to confuse things but any rolling guidelines / recommendations should clarify this. By the way the official guidelines resulting from this research are being launched later this month at the 1st class groundsman’s meeting and should be generally available from then. I am in the process of constructing a website to give more background info and help on the rolling project results – when I get time.
10 Feb 2009 by EDS
Thanks Peter - very helpful
Still Learning
10 Feb 2009 by Anthony Asquith
Straight from the horses mouth!
10 Feb 2009 by Sumomosr
Minormorris64 Can you post a pic of your unique S&P 32RD with only 1 drum? All the ones I've seen have a front (steering) and rear (driving) roller.
GOGGA
10 Feb 2009 by Philmort Last edited 10 Feb 2009
Not well up on machinery but unless it's a pedestrian roller how do you stay on top of a single drum? (Not the Cranfield one, I've seen it!)
Proud to serve grassroots cricket
10 Feb 2009 by mario
He's an acrobat in his spare time. LOL.
I know no boundaries.
10 Feb 2009 by Vic Demain
Peter, will you be delivering the presentation at the groundsman's meeting?
10 Feb 2009 by Grassman2011
Thanks for that Pete. You did stir the grey matter Mario. Well done you.
10 Feb 2009 by pete shipton
Iain will probably be doing the presentation - he likes doing it more than me ! - but I may be there to help him out with the difficult questions !
10 Feb 2009 by mario
I think the difference was, Gordon that I was in the front row paying particular attention as Alex has a habit of throwing the odd question at you without warning.
Will be interested to hear the outcome of the last three years.
I know no boundaries.
10 Feb 2009 by Grassman2011
You certainly will Ken.
When you hear, you will wonder why we ever have a roller.
Will not be burning very much red diesel this year.
11 Feb 2009 by Minormorris64
20 hours ago by Sumomosr
Minormorris64 Can you post a pic of your unique S&P 32RD with only 1 drum? All the ones I've seen have a front (steering) and rear (driving) roller.
My how pedantic.
What goes around, comes around
11 Feb 2009 by jlawrence
now where did that website link vanish to - I forgot to book mark it. Suppose I'll have to trawl through my history now to find it again :(
Of course there's no bounce, bend your back and put some bloody effort in.
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