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how to work out how much plasma will fit
Posted: Wed Apr 18, 2007 7:17 pm
by bru21
my rope arrived 11mm amsteel blue. I got 100m. was wondering should I spool it on as tight as I can get it by holding it, then add and amount to allow for shrinkage? Or am I better having less so it doesn't overspool. Just hard to work out as my drum is smaller diameter and wider.
also I have a hole in the drum, should I pull the rope through and tie a knot or use a clamp?
cheers bru
Posted: Wed Apr 18, 2007 7:46 pm
by The Fish
We normally tape the end to the drum and also splice an eye in each end. This is so when you break the rope during a stage it's a lot quicker to reverse the rope and keep going
You really shouldn't get to the stage where the rope pulls off the drum especially with extra capacity you will have.
What do intend to do with the left over rope? Carry it as a spare winch rope or as an extension/s?
I would possibly consider putting 50m on the winch and make a 10m extension and carry the other 40 metres as a spare winch rope. The spare rope could also be doubled up to become a 20m extension.
If you break the rope the worst scenerio would be it breaks in the middle and then you would be left 2 x 25m extensions.
As a bit of extra info last year during the arvo mud stage at the OBC the final winch of the stage did require us to use 100m of winch rope and extensions so ensure all the rope you are carrying is spliced at both ends even if its 8m of left over broken winch rope because you just may need it
This is just my opinion and I would be interested to know what others think
Cheers.
Posted: Wed Apr 18, 2007 8:03 pm
by Chook350
how much was the rope, i run a 12000 pound low mount that holds 28 metres of cable, 10mm i think, my drama is the feral on the end that bolts to the drum keeps pulling out, i've sent it away to be done properly and it keeps doin it. i always leave atleast 1 layer of cable on the drum. have been thinking of changin to rope but unsure
Posted: Wed Apr 18, 2007 8:41 pm
by ausyota
The Fish wrote:We normally tape the end to the drum and also splice an eye in each end. This is so when you break the rope during a stage it's a lot quicker to reverse the rope and keep going
.
I was looking at doing my rope this way with the 2 eyelets.
You guys obvisously dont run a thimble in the eye of the rope do you as that would get in the way on the drum end?
Do you have any wear issues around the loop at the hook end without a thimble?
Cheers
Paul.
Posted: Thu Apr 19, 2007 7:07 am
by bru21
I was planing to put 70 on the winch and a 20 & 10mt extension left over, just wondering if there is a better way of working it out to get it more exact eg 62m or 77m on the drum etc by spooling it on first etc. Is there a disadvantage to having heaps on the drum. remembering that it is widened and reduced diameter. Like the 2 spliced ends approach, nifty little trick do you cut the hook off then use a d shackle to place it on the spliced end?! As above I am interested to see whether I need a thimble (I bought 5) and 3 massive splice on hooks, and 2 rings. I was planing to fit a hook to one end of the extensions and a ring at the other.
cheers bru
Posted: Thu Apr 19, 2007 9:03 am
by Ossie
Our 8274 drum has been widened (2 inch) and the diameter reduced (halved) and we ran 60m of 11mm for the OBC last year. With the 20m extension we JUST made it for two of the crossings in the mud.
In the Ateco we had 80m on the drum, the winch speed for short pulls was definitely reduced with the extra on the drum, and in hindsight less rope would have mean less load on the winch.
60m on a modified drum is less diameter when spooled, than 45m of 12mm io a standard drum. As fish said I used to tape the rope to the drum, but know have a chain eyelet that is held on by an allen key (Steph got excited a once and pulled the rope of the drum when taped).
We use a yellow rated load joiner to attach the hook to a spliced eyelet on the rope. In the longer mud stages (sink or swim, 5 x 60m+ winches) the dynamica extension can easily be added to the winch rope (two eyelet join, same at joining two snatch straps, can be a bitch to get undone though!). Under the new rules you only then need to have the dampener on the hook, this saves a lot of time in the mud.
Jason
Posted: Thu Apr 19, 2007 7:15 pm
by tuf045
Ossie wrote:Our 8274 drum has been widened (2 inch) and the diameter reduced (halved) and we ran 60m of 11mm for the OBC last year. With the 20m extension we JUST made it for two of the crossings in the mud.
In the Ateco we had 80m on the drum, the winch speed for short pulls was definitely reduced with the extra on the drum, and in hindsight less rope would have mean less load on the winch.
60m on a modified drum is less diameter when spooled, than 45m of 12mm io a standard drum. As fish said I used to tape the rope to the drum, but know have a chain eyelet that is held on by an allen key (Steph got excited a once and pulled the rope of the drum when taped).
We use a yellow rated load joiner to attach the hook to a spliced eyelet on the rope. In the longer mud stages (sink or swim, 5 x 60m+ winches) the dynamica extension can easily be added to the winch rope (two eyelet join, same at joining two snatch straps, can be a bitch to get undone though!). Under the new rules you only then need to have the dampener on the hook, this saves a lot of time in the mud.
Jason
is that ccda rules or outback challange only rules?
Posted: Thu Apr 19, 2007 9:57 pm
by GQ4.8coilcab
this formula will get you to know exactly how much you can fit on the drum, hope this helps
Posted: Fri Apr 20, 2007 8:55 am
by Ossie
tuf045 wrote:is that ccda rules or outback challange only rules?
CCDA rules. V7 20 Jan 2007
Rile 2.33.4
Jason
Posted: Fri Apr 20, 2007 10:21 am
by Juzza
Ossie wrote:Our 8274 drum has been widened (2 inch) and the diameter reduced (halved) and we ran 60m of 11mm for the OBC last year. With the 20m extension we JUST made it for two of the crossings in the mud.
In the Ateco we had 80m on the drum, the winch speed for short pulls was definitely reduced with the extra on the drum, and in hindsight less rope would have mean less load on the winch.
60m on a modified drum is less diameter when spooled, than 45m of 12mm io a standard drum. As fish said I used to tape the rope to the drum, but know have a chain eyelet that is held on by an allen key (Steph got excited a once and pulled the rope of the drum when taped).
We use a yellow rated load joiner to attach the hook to a spliced eyelet on the rope. In the longer mud stages (sink or swim, 5 x 60m+ winches) the dynamica extension can easily be added to the winch rope (two eyelet join, same at joining two snatch straps, can be a bitch to get undone though!). Under the new rules you only then need to have the dampener on the hook, this saves a lot of time in the mud.
Jason
Jason, could you describe the type of joiner you used in a bit more detail or post a pic. Thanks.