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winchmount under tray??
Posted: Thu Oct 11, 2007 11:18 am
by Remydog05
Thinking of mounting the Himount under the tray and running the cable underneath.
I searched for a while but it came up with 1000's of things way off the subject!
I know there is a few that have done it.
Any thoughts??
The biggest thing I see is running the rope/cable without getting knots, kinks etc.
Re: winchmount under tray??
Posted: Thu Oct 11, 2007 11:42 am
by STIKA
Remydog05 wrote:Thinking of mounting the Himount under the tray and running the cable underneath.
I searched for a while but it came up with 1000's of things way off the subject!
I know there is a few that have done it.
Any thoughts??
The biggest thing I see is running the rope/cable without getting knots, kinks etc.
The biggest problems with knots and kinks is overspooling it you can keep slight tension on the rope you shouldn't have a drama
The other thing you will have to consider is fleet angle , if you fleet angle is set up correct then your rope should spool on to the drum perfect each time
The fleet angle is a formular (which i will get later) it worked out from the width or the cable drum to the point that your cable exits you last anchor point which should be situated x mm directly in front onf the centre of the winch
Re: winchmount under tray??
Posted: Thu Oct 11, 2007 11:48 am
by DanielS
STIKA wrote:Remydog05 wrote:Thinking of mounting the Himount under the tray and running the cable underneath.
I searched for a while but it came up with 1000's of things way off the subject!
I know there is a few that have done it.
Any thoughts??
The biggest thing I see is running the rope/cable without getting knots, kinks etc.
The biggest problems with knots and kinks is overspooling it you can keep slight tension on the rope you shouldn't have a drama
The other thing you will have to consider is fleet angle , if you fleet angle is set up correct then your rope should spool on to the drum perfect each time
The fleet angle is a formular (which i will get later) it worked out from the width or the cable drum to the point that your cable exits you last anchor point which should be situated x mm directly in front onf the centre of the winch
I'm following this, an keen to see this formular.
Thanks
Daniels
Posted: Thu Oct 11, 2007 11:53 am
by STIKA
Formular
19x (1/2 the Drum width)
ie Drum with of 200mm
19 x150 = 2850mm to the first sheeve and the cable will spool on perfect every time
Posted: Thu Oct 11, 2007 12:22 pm
by Remydog05
So going by that theory it should be better than having it mounted on the front with a small distance from Fairlead to Drum? Provided you can keep a small amount of tension on the rope.
Anyone made up a tube to run the rope thru or eyelets??
Posted: Thu Oct 11, 2007 1:16 pm
by STIKA
No
you want 1450 mm from the drum to the first lets clal it fair leed or bell on tube then that tube woul run to a fairlead at the front of the car
note the fairlead at the front of the car should be small with no portusions where the cable changes direction
Posted: Thu Oct 11, 2007 2:22 pm
by patrol42
Buy the sounds of it you are setting up basically a centrally mounted winch. This was available on Landrover 101's and some SBU Unimogs.
The way they set it up, is to run the cable to a snatch block which is secured to the back and then run the cable forward to the front where it has your normal Hook on it.
This allowed them to winch forwards (off the hook) or to secure the hook and use the snatch block to winch backwards.
I had some links to images of how they had set this up but cant for the life of me find them now..but will post them up one i do..
This landrover may be taking it a bit far though

Posted: Thu Oct 11, 2007 3:58 pm
by DanielS
STIKA wrote:Formular
19x (1/2 the Drum width)
ie Drum with of 200mm
19 x150 = 1450mm to the first sheeve and the cable will spool on perfect every time
Cheers STIKA
daniels
Posted: Thu Oct 11, 2007 4:02 pm
by Guy
patrol42 wrote: do..
This landrover may be taking it a bit far though

Those rover generated oil slicks can get quite large ...
Posted: Thu Oct 11, 2007 5:18 pm
by chunderlicious
i suggest eyelets or short pieces of tube. if the rope breaks having a full length of tube will stop you being able to retrieve the rope and keep going.
Posted: Thu Oct 11, 2007 8:08 pm
by manitou
I remember seeing this a while ago on an IBEX - its a kit car made from a range rover.
this should give you a start
http://www.ebroadcast.com.au/ecars/Foers/Winch.html
Posted: Thu Oct 11, 2007 8:33 pm
by Remydog05
Thats the sort of concept I was thinking of, so you can winch backwards if need be.
Im Pretty sure sailing industry would have some good rigging ideas.
Hasnt Kym Bolton go a center mount winch in the GURIPPA???
Posted: Thu Oct 11, 2007 9:29 pm
by chunderlicious
kym has 2 midmount. well did last time a saw it, also had a PTO and highmount at one stage. he ran eyelets under the car and im pretty sure he could go backwards but it isnt recomended as the winch drum isnt designed to be stressed at that angle.
Posted: Thu Oct 11, 2007 10:04 pm
by RED60
STIKA wrote:Formular
19x (1/2 the Drum width)
ie Drum with of 200mm
19 x150 = 1450mm to the first sheeve and the cable will spool on perfect every time
19 x (1/2 of 200mm) 100 = 1900 or am I missing something.
It appears the drum width is calced incorrectly then the actual multipication is done incorrectly as well?
Posted: Thu Oct 11, 2007 10:11 pm
by g60boy
mabie talk to arb dandenong, there gq comp truck runs one under the tray just behind the cab, so they may be of some help.
Posted: Fri Oct 12, 2007 8:42 am
by Remydog05
Thanks G60 Will do.
I remember seeing it a while ago but I didnt take much notice then.
Posted: Mon Oct 15, 2007 8:19 am
by AndrewT
Iv'e seen a few of these setups at events. Would also be keen to hear if anyone on here has tried it. If the above formula was used you would have a long distance of cable out in the open running near exhuast etc.
Andrew
Posted: Mon Oct 15, 2007 10:33 am
by patrol42
chunderlicious wrote:kym has 2 midmount. well did last time a saw it, also had a PTO and highmount at one stage. he ran eyelets under the car and im pretty sure he could go backwards but it isnt recomended as the winch drum isnt designed to be stressed at that angle.
If you run the snatch block at the back there are no strange stresses on the winch drum, but what you need to take into accoutn is the stress's on the chassis since you are using that as an anchor point.
The mogs ran PTO winches to winch backwarsd and forwards, but they also have extra bracing in the chassis to offset the extra forces from a 170HP Pto Winch
Posted: Mon Oct 15, 2007 3:00 pm
by nzdarin
I've been running a mid mounted high for the last couple of years and don't bother using the formula. My first guide was just on 1000mm from the drum and with 50m of 10mm Dynamica, the first and second layer were perfect every time. The rest of the rope would gradually bunch into the midlle of the drum. This did a few things. First no jams, no pressure on the drum.
I'm sure if you had the guide further away it would spool on perfectly all the way to the top layer but I think it works better when it doesn't ie less rope jams with synthetic anyway.