Search found 628 matches

by Low_Sky
Wed Jul 11, 2018 4:56 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Re: Recovery calculations, math made simple

https://www.warn.com/m15-12v-heavyweight-winch-47801 Warn literature says the M15000 will do 15k at 12V. I’m not a Warn expert, so I have no clue. I suppose an additional check we could make would be to compare the no-load line speed. The M12000 and M15000 seem to be the same motor geared differentl...
by Low_Sky
Wed Jul 11, 2018 2:38 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Tree strap

The ratings given to tree straps are for a vertical hitch (a straight pull on the sling). Given a long enough sling and a small enough anchor, wrapping the sling around the anchor and connecting to both eyes of the sling leaves you with a basket hitch (the sling makes a U-shape). If the angle betwee...
by Low_Sky
Wed Jul 11, 2018 1:26 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Snatch Blocks

The topic of snatch block ratings comes up fairly regularly. Many blocks bear a Working Load Limit (WLL), and that causes a lot of confusion. The WLL applies to overhead lifting; raising a load off the ground where it may be suspended over people or property you don’t want to drop something on, or t...
by Low_Sky
Wed Jul 11, 2018 12:05 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Static Loads and Shock Loads

All of the calculations above assume static loads, objects are at rest and their weight is what it normally is under Earth gravity. If the rigging is subjected to sudden loads (such as a load shifting, a recovered vehicle gaining and losing traction again on a slope, etc), the loads seen can be more...
by Low_Sky
Wed Jul 11, 2018 12:04 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Example Scenarios

Now that we’ve discussed all the steps along the way, let’s work out some examples. A 9000 lbs Power Wagon is mired to wheel wells on flat ground. Mire Resistance = 9000 lbs x 2 = 18,000 lbs Grade Resistance = 0 lbs Load Resistance = 18,000 lbs + 0 lbs = 18,000 lbs Available Effort = 12,000 lbs Mech...
by Low_Sky
Wed Jul 11, 2018 12:04 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Required Effort

The required effort is how hard the winch must pull to move the load. In a single line pull, the required effort is the load resistance. If mechanical advantage is needed, the required effort calculation will account for friction in the blocks. To do this, count the number of sheaves in the system, ...
by Low_Sky
Wed Jul 11, 2018 12:04 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Mechanical Advantage

Mechanical advantage is the ratio of the force applied by a machine to the force applied to it. To determine the mechanical advantage required for a recovery, divide the load resistance by the available effort and round up to the nearest whole number. This first mechanical advantage calculation is a...
by Low_Sky
Wed Jul 11, 2018 12:03 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Available Effort

Available effort is how much the winch can pull (or is rated to pull). Winches only pull their rated capacity with the last wrap on the drum. Additional wraps reduce the available effort because the rope has more leverage against the drum. There are charts available that give the pull capacity for a...
by Low_Sky
Wed Jul 11, 2018 12:03 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Load Resistance

The load resistance is the combination of mire resistance and grade resistance, and it is the total load required to move the stuck vehicle. The winch only pulls as hard as needed to overcome the load resistance. If the load resistance is 5,000 lbs, a 12,000 lbs winch only pulls with 5,000 lbs to mo...
by Low_Sky
Wed Jul 11, 2018 12:03 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Grade Resistance

Grade resistance is the load on a vehicle imposed by the angle of the surface it is stuck on, along the direction of travel of the vehicle. An uphill grade adds resistance, and a downhill grade subtracts resistance. Grade.PNG Multiply the weight of the vehicle (including cargo) by the grade factor t...
by Low_Sky
Wed Jul 11, 2018 12:01 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Mire Resistance

Mire resistance is the load on a stuck vehicle imposed by the surface it is stuck on. The resistance of a mired vehicle depends primarily on the depth to which it is mired, and the weight of the vehicle and cargo. Not all surfaces are created equal, but the mire factors presented here are a good sta...
by Low_Sky
Wed Jul 11, 2018 12:00 pm
Forum: Power Wagon Talk
Topic: Recovery calculations, math made simple
Replies: 16
Views: 247

Recovery calculations, math made simple

The following series of posts is going to go through the steps to calculating a winch recovery. Taken one step at a time, the calculations really aren’t very difficult. I have put together some example scenarios so you can see how it all comes together. I hope some folks find this stuff useful. In r...
by Low_Sky
Wed Jul 11, 2018 10:14 am
Forum: Power Wagon Talk
Topic: 2020 Ram 2500 Power Wagon spied
Replies: 34
Views: 615

Re: 2020 Ram 2500 Power Wagon spied

As long as the front and rear still have a real bumper and not a full plastic valence I won’t be too disappointed. If Ram is trying to increase the production numbers, they aren’t going to do anything too radical with the bumpers. I just want decent options for off-road fabricated bumpers. The bumpe...
by Low_Sky
Wed Jul 11, 2018 9:55 am
Forum: Power Wagon Talk
Topic: Rear Suspension
Replies: 11
Views: 317

Re: Rear Suspension

:poke: Marcus, when am I getting my Thuren goodies so I can comment intelligently on these threads? Haha
by Low_Sky
Sat Jul 07, 2018 3:25 pm
Forum: Donations
Topic: PayPal Donation Link
Replies: 6
Views: 171

Re: PayPal Donation Link

Dang Power Wagon just cost me another $25. :cash: :cash: :cash:
by Low_Sky
Fri Jul 06, 2018 5:40 pm
Forum: Off-Topic
Topic: Why the lack of subforums?
Replies: 48
Views: 2293

Re: Why the lack of subforums?

I feel like towing & hauling is clearly different from discussions on camp setups and what not. Especially those of us with overland setups, and discussions on tents, vs discussions on payload. Agree. "Tongue weight and airbags?" vs. "What's the best TP for my camper commode?". Two different types ...
by Low_Sky
Fri Jul 06, 2018 5:22 pm
Forum: Off-Topic
Topic: Why the lack of subforums?
Replies: 48
Views: 2293

Re: Why the lack of subforums?

I feel like towing & hauling is clearly different from discussions on camp setups and what not. Especially those of us with overland setups, and discussions on tents, vs discussions on payload. Agree. "Tongue weight and airbags?" vs. "What's the best TP for my camper commode?". Two different types ...
by Low_Sky
Fri Jul 06, 2018 1:32 pm
Forum: Power Wagon Talk
Topic: What did you pay for your latest Gen PW
Replies: 33
Views: 574

Re: What did you pay for your latest Gen PW

Have you tried Heritage CJDR in Brigham City? When I bought my 2015 (living in Vernal at the time), they gave me the best price on a factory order over anybody in a 4-hour drive radius. Karl Malone CJDR in Heber City was comparable on price, but Heritage was much easier to deal with, better communic...
by Low_Sky
Fri Jul 06, 2018 1:14 pm
Forum: Off-Topic
Topic: Why the lack of subforums?
Replies: 48
Views: 2293

Re: Why the lack of subforums?

To me, if you have to give the model year of your truck with your question to get an answer that's worth anything, that subject needs to get rolled up into a generation-specific subforum. I would rather go to one subforum and see a variety of topics all specific to my generation Power Wagon than go ...
by Low_Sky
Thu Jul 05, 2018 4:00 pm
Forum: Power Wagon Talk
Topic: GPS
Replies: 13
Views: 246

Re: GPS

+1 for Gaia. You can download the maps you plan on needing before you leave service (can download over cell network or WiFi). It doesn’t do on-road route planning like the Google Maps app, TomTom car gps, etc. I like to create a path on the trail(s) I’m interested in with Google Earth, save them to ...
by Low_Sky
Thu Jul 05, 2018 10:50 am
Forum: Power Wagon Talk
Topic: Power Wagon Picture Thread
Replies: 3054
Views: 308267

Re: Power Wagon Picture Thread

Rear. A lot of people that opt for the taller Thuren front springs find that the truck ends up a little too level.
by Low_Sky
Wed Jul 04, 2018 9:35 am
Forum: Power Wagon Talk
Topic: Dead power outlet. Fuse is ok
Replies: 16
Views: 645

Re: Dead power outlet. Fuse is ok

Thanks for the extra info. I missed the post about the contact being loose inside the fuse box, so I’ll take a look at that too.
by Low_Sky
Tue Jul 03, 2018 9:41 am
Forum: Power Wagon Talk
Topic: New direction for this forum
Replies: 23
Views: 567

Re: New direction for this forum

BoldAdventure wrote:
Tue Jul 03, 2018 9:06 am
Paypal I think is the best since they won't dip into funds.

And I changed my username to match what I use normally on all other forums and instagram, FYI :cheers:
Haha, I thought something looked different. I thought it was just the green moderator font. I totally missed the name change.
by Low_Sky
Tue Jul 03, 2018 9:41 am
Forum: Power Wagon Talk
Topic: New direction for this forum
Replies: 23
Views: 567

Re: New direction for this forum

BoldAdventure wrote:
Tue Jul 03, 2018 9:06 am
Paypal I think is the best since they won't dip into funds.

And I changed my username to match what I use normally on all other forums and instagram, FYI :cheers:
Haha, I thought something looked different. I thought it was just the green moderator font. I totally missed the name change.
by Low_Sky
Tue Jul 03, 2018 8:55 am
Forum: Power Wagon Talk
Topic: New direction for this forum
Replies: 23
Views: 567

Re: New direction for this forum

350z forum is vBulletin. I applaud you for forgoing ads. When I’m looking for information I dread following any links to the Cummins forum. The ads ruin that website. They’re all over it, even embedded in the posts. When you get the system up and running I’ll be in line to chip in. This is a great f...