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Ideal jump landing angle

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1kewldewd
Posts: 796 - Karma: 1,147
I have a big pile of dirt in my yard and a backhoe so I was thinking I should make a park style jump with it as the landing. I was wondering what most park jumps angle is like?
Aug 17 2013 12:57AM
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theTRIBE101
Posts: 1175 - Karma: 856
no landing = gnarly landings
Aug 17 2013 1:11AM
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-WZ-
Posts: 3600 - Karma: 6,582
89 degree angles are preferred on most park jumps, but if you can try to go past 90
Aug 17 2013 1:14AM
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Toaster-Tony
Posts: 3531 - Karma: 5,850
I'm no park builder, but I think I remember hearing someone say that you should try to match it to the degree of your takeoff.

Steep take off= Steep landing
Aug 17 2013 1:20AM
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jabroni.
Posts: 662 - Karma: 235
^this guy with the math


Aug 17 2013 1:50AM
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Holte
Posts: 10740 - Karma: 7,814
About twice as steep as your average park jump.
Aug 17 2013 2:11AM
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eheath
Posts: 61601 - Karma: 123,020
This, not sure exact numbers but 30-35ish degrees seems ideal, 45 is too steep and 20 is too flat
Aug 17 2013 2:13AM
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HeathR
Posts: 4359 - Karma: 1,382
It depends on the type of jump. Matching the takeoff angle is a good starting point though. Then it depends how much of a step up or down it is. Obviously the more of a step down you have the steeper you need a landing. True tables and step ups need landings less steep then the takeoff.
Aug 17 2013 2:28AM
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1kewldewd
Posts: 796 - Karma: 1,147
Thanks for all the help. I think I am going to go with about thirty degrees for take off and landing.
Aug 17 2013 1:55PM
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Lick
Posts: 1927 - Karma: 518
Seems about right.

Speaking about landing angles, Afton's second jump landing is always like 45 or more. it's fucking steep
Aug 17 2013 11:00PM
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jerm
Posts: 947 - Karma: 1,061
It's definitely very dependent on your take off. So I say figure out how poppy you want your jump to be and go from there. Maybe just draw it out on paper and look at side profile pictures of other jumps to get an idea of how poppy you want your take off.

As a rule of thumb I would say make it as steep and long as you can. The steeper it is the shorter the landing will be though. Probably going to result in trial and error and finding a happy medium.
Aug 17 2013 11:13PM
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CashmereCat
Posts: 2211 - Karma: 2,394
My home hill always has a huge jump that steps down and 20 feet into a hill that is probably at least 50 degrees. And there is always cross hill traffic. Landing switch is not an option.
Aug 17 2013 11:31PM
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jibbpeter
Posts: 1613 - Karma: 4,083
Flat landings sucks! At my local park, the kicker of the largest jump is like super poppy (50-60°) and the landing around 30-40°. You easyly go 20 ft in the air, in other words it sucks to land backseated.
Aug 18 2013 12:58AM
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p-fo
Posts: 9372 - Karma: 6,155
It's a good rule of thumb, because it gets close enough pretty much all the time. But I would say that it's probably better to work the other way. See how big you can make the landing with the dirt you have, and let that determine the takeoff angle. Less dirt=shorter landing=less steep. Then build the takeoff based on that.
Just remember that with a true table or stepover, you're landing very nearly the same angle you took off, but with a stepdown, you're landing at a steeper angle.
Aug 18 2013 5:02AM
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HeathR
Posts: 4359 - Karma: 1,382
You cant maintain much over a 40 degree angle even with a winch cat. There is no way that the landing is 50 degrees. Even if a cat could get up something that steep the fluids in a cat are not designed to operate over 45 degrees and would spill out.
Aug 18 2013 5:20AM
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CashmereCat
Posts: 2211 - Karma: 2,394
Yeah. It is. They don't maintain it, it just turns to ice. It's skiing in Illinois, far from perfect.
Aug 18 2013 9:36AM
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peter87
Posts: 72 - Karma: 315
I'm a park builder. Match your landing to your take off as best you can and make it one single pitch until the tranny. If you have enough dirt make the knuckle high then the lip and your landing can be slightly flatter with less impact falling out of the sky.
Aug 18 2013 11:49AM
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corona
Posts: 12795 - Karma: 32,747
would love to see pictures of this as you build it + in the winter.
Aug 18 2013 11:53AM
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Miomo
Posts: 4302 - Karma: 14,133
45 degree take-off = 45 degree landing if the top of the lip is the same height as the landing

If the take-off is lower, it needs to b steeper and vice versa.

The situation above gets you the most air time and distance for step-overs or however you build it.
Aug 18 2013 1:24PM
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filipoio
Posts: 293 - Karma: 1,569
this
Aug 18 2013 1:37PM
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eheath
Posts: 61601 - Karma: 123,020
Yeah but no one actually builds jumps at 45 degrees.
Aug 18 2013 2:38PM
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250r
Posts: 2276 - Karma: 1,013
this angle doest really show the steepness of it, but this jump had to be around 45°
Aug 18 2013 3:01PM
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rockersteez
Posts: 593 - Karma: 1,199
About 30 degrees and just and a little beyond. For mountains it kind of depends on what you have to maintain it. At a certain point you need to winch.

Aug 18 2013 3:49PM
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Miomo
Posts: 4302 - Karma: 14,133
Because most people build landings below the jump lip, so it needs to be shallower.
Aug 18 2013 3:50PM
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rockersteez
Posts: 593 - Karma: 1,199
Yup. If you're hitting a mellow ramp at full speed and it's a distance style jump, you need a mellow landing. If it's too steep you'll fly right over it. If the jump is practically straight up, all your energy is coming almost straight down, the landing needs to be very steep to keep you from compressing. If you have a super flat landing your knees with hit you in the face and you're gonna have a bad time.
Aug 18 2013 3:54PM
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hemlockjibber8
Posts: 5977 - Karma: 3,543
real men land up hill. build a wall
Aug 19 2013 7:39PM
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Mag
Posts: 8155 - Karma: 14,809
In a perfect world you'd have incredibly steep landings, VERY gradually flattening, although this would result in you taking several minutes to land, as if you land on your feet you still have to go down the landing, which would most likely end up being several miles+, also skiing at a gradient that is most likely 89.9 degrees could be considered somewhat advanced.

However if you missed the landing, you'd take very little damage assuming you're not rag dolling, in which cases you'd most likely be dead. But if you overshoot all you have to do is freefall at 80-200mph, depending on how big your jiberish is, until you incredibly gently touch down onto the snow.
Aug 19 2013 8:59PM
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rockersteez
Posts: 593 - Karma: 1,199
That would not be a perfect world at all. Also there's spots like that in the back country.

While that allows you to land from much hire and not feel any compression regardless of where you land it would never make sense in a park setting even if it could be done reasonably.

It would kill the flow of your run, and if you fell you would basically die.
Aug 19 2013 9:03PM
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Miomo
Posts: 4302 - Karma: 14,133
That's what makes it fun, pussy.
Aug 19 2013 9:16PM
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Mag
Posts: 8155 - Karma: 14,809
But OP isn't in a park setting, he has "a big pile of dirt in my yard and a backhoe" so he was thinking he "should make a park style jump with it as the landing"

I'm willing to wager there's nowhere in the world that truly fulfils my specifications, although maybe I haven't listed them enough.

as for your falling comment, natural selection at work.
Aug 19 2013 9:29PM
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Da-Bull
Posts: 328 - Karma: 247
who needs a landing when you just big air dave everything
Aug 19 2013 10:26PM
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perryhunter
Posts: 721 - Karma: -185
Agree! You can go about 30-35 degrees, (safest). If you're just doing it for fun..
Aug 19 2013 10:27PM
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