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Noob question - how do you measure size of a jump?

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thesoloist
Posts: 71 - Karma: 145
Ignoring the sketchy drawing, when talking about a "35ft jump", what measure on this picture is that 35ft?

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Apr 12 2013 11:52AM
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~Gotama~
Posts: 821 - Karma: 3,160
from the lip, or tippy top of the jump, to the knuckle of the landing.
Apr 12 2013 11:54AM
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SpliffyJ
Posts: 778 - Karma: 565
Click for larger image
Apr 12 2013 11:58AM
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Miomo
Posts: 4302 - Karma: 14,133
I'm pretty sure it's to the sweet spot.
Apr 12 2013 11:59AM
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~Gotama~
Posts: 821 - Karma: 3,160
im pretty sure youre wrong
Apr 12 2013 12:01PM
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homestar
Posts: 2124 - Karma: 4,197
I though it was to the knuckle too
Apr 12 2013 12:02PM
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corona
Posts: 12804 - Karma: 32,823
technically it's from the lip to furthest you can go without overshooting the jump. pretty sure that's how they're measured in ski jumping.
Apr 12 2013 12:02PM
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corona
Posts: 12804 - Karma: 32,823
lip to knuckle is best and common for park jumps though
Apr 12 2013 12:03PM
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TACO-DOG.exe
Posts: 11989 - Karma: 12,264
Some people measure to the knuckle some measures to the sweet spot. Usually they specify which when they tell you.
Apr 12 2013 12:03PM
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Blurst
Posts: 13577 - Karma: 10,169
I always thought that it was the height of the takeoff.
Apr 12 2013 12:05PM
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Tacocat
Posts: 658 - Karma: 356

So you thought that Big Bertha was 40 meters high?

Apr 12 2013 12:13PM
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Blurst
Posts: 13577 - Karma: 10,169
nig nertha?
Apr 12 2013 12:25PM
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thesoloist
Posts: 71 - Karma: 145
thanks all. Just an idea, maybe they(the mountain) can put a number on each jump?(They do put flags/poles/whatever to show the boundary of kicker) This could help ppl(that's not high on sth) know before they try things too big for that jump...
Apr 12 2013 12:41PM
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will_powder
Posts: 3194 - Karma: 5,445
MSLM does this. Not that I've ever been there.
Apr 12 2013 12:44PM
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will_powder
Posts: 3194 - Karma: 5,445
At 2:08

Apr 12 2013 12:47PM
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Merrill
Posts: 253 - Karma: 71
When ever I talk to someone about jumps I always specify either 20 feet to the nuckle or its 30 feet to the sweet spot.
Apr 12 2013 1:32PM
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first_rodeo
Posts: 2385 - Karma: 7,781

im from albany,  but go to school out in CNY and

all these mountains actually label the jumps with 30, 35, 40 ........

i think its more for claim than anything but they measure lip to knuckle

 (the actual length of the gap) if you think about it

Apr 12 2013 1:37PM
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SKIU4EA
Posts: 2387 - Karma: 2,072
I think it's this generally


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Apr 12 2013 1:57PM
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TristonHall
Posts: 194 - Karma: 564
^this
Apr 12 2013 2:51PM
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90053
Posts: 2565 - Karma: 3,728
how d'you measure that, pythagoras? lol
Apr 12 2013 3:05PM
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7-3instacall
Posts: 999 - Karma: 1,005
almost, but just straight line i think
might be wrong too
Apr 12 2013 3:14PM
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Crispy.
Posts: 6116 - Karma: 7,712
Almost always measured from lip to knuckle unless otherwise specified...

example:

[URL=http://s1103.photobucket.com/user/iamaskibum247/media/ScreenShot2013-04-12at34602PM_zpsf14096be.png.html]Click for larger image[/URL]
Apr 12 2013 4:47PM
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bigkicker
Posts: 1270 - Karma: 87
Lip of the takeoff to the knuckle of the landing. You can find the exact spot on the knuckle by taking two pieces of bamboo. Lay one on the deck of the jump and hold the other on the top of the landing. Where they intersect is the your knuckle
Apr 12 2013 4:59PM
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FuckAllOfYou
Posts: 3864 - Karma: 2,518
It's lip to knuck unless they're stupid. So if a jump was 35, if you knuckled you'dve gone 35 feet. If you actually clear the jump to the sweet spot, that's usually another 5 or even 10. So a 35? 40ish. a 40? 45. You get the idea.
Apr 12 2013 5:39PM
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JahLiam
Posts: 2321 - Karma: 7,828
Ski lengths from base of lip to the knuckle + the height of the jump itself
Apr 12 2013 5:47PM
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Nate.Dog
Posts: 1672 - Karma: 2,098
this
Apr 12 2013 5:50PM
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Barefootin_Fiend
Posts: 7618 - Karma: 4,727
you guys forgot the step where you add an additional 20-30 feet to the real number to make yourself sound more bad ass. see it all the time on here....

Apr 12 2013 5:57PM
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Crispy.
Posts: 6116 - Karma: 7,712
That is what my mountain does with their "55" footer
Apr 12 2013 9:13PM
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edai
Posts: 4990 - Karma: 4,677
qfe

I usually just measure from knuckle to flat, you could say i send it
Apr 12 2013 9:18PM
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joelski
Posts: 1014 - Karma: 736
this except if you nuckle and its a step up/down it would be more because you would travel up/down as well
Apr 13 2013 12:22AM
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Parks.
Posts: 5612 - Karma: 1,093
good post...cannot forget to take he yaw into account
Apr 13 2013 12:50AM
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Mr.Bishop
Posts: 22708 - Karma: 76,635
With years of experience as a park builder, I can vouch for the fact that this is correct.

Jumps should be measured from the lip of the jump to the knuckle - but define the knuckle as the start of the first point you could legitimately land without 'decking'.

Sometimes the kuckle of a jump - especially if its old - can be super rolled. Note, knuckle is the spot where the deck turns into the landing.

In the case of a very rolled knuckle, its abit of a black magic. Personally I measure right to where you could start landing it without hating your life.

Anyone that measures to the 'sweet spot' is incorrect. Anyone who guesses or uses their feet to judge is incorrect. The only time you should ever trust the length of a jump is if it was measured with a tape measure.

People almost always estimate the size of a jump wrong by eye. So when you show up at a place and everyone is all "bro, I just slayed the 65 foot-er" if you actually slayed some tape on that bitch, it'd probably be 55'.

I always refused to build jumps without tape. Guessing at the size is just plain stupid, and is the greatest way to ruin the flow of your park. Especially when building, its almost impossible to get the measurements right without some pieces of bamboo and a sweet tape measure.

Apr 13 2013 2:54PM
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gusestomp
Posts: 1377 - Karma: 746
This is my contribution to this thread....

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Apr 13 2013 2:58PM
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buttrapinpirate
Posts: 497 - Karma: 225
Big Air Dave I see... Takin it to the Gucci Plateau
Apr 13 2013 3:26PM
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Black.Bird
Posts: 2566 - Karma: 684
Click for larger image
Apr 13 2013 4:18PM
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Anathema
Posts: 21048 - Karma: 5,061
i always figured it was the lip of the jump to the knuckle of the landing in a straight line. so you're not measuring the hypotenuse of the triangle, but rather the base.

so if it's a step down you dont measure all the distance you'd be going down as a part of the length of the jump..
Apr 13 2013 4:28PM
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edai
Posts: 4990 - Karma: 4,677
Yeah this is the best way, nice use of vocab
Apr 13 2013 4:30PM
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corona
Posts: 12804 - Karma: 32,823
Measuring to the sweet spot is incorrect for park jumps maybe. but for actual ski jumping (which has been around for almost 200 years longer than park skiing) the size of the jump is either measured from the lip to the furthest you can go without overshooting or the lip to the sweet spot. It is never ever measured from lip to knuckle.


also I measure a jump without a tape measure and get it +/- 6" every time. My ski is 189 cm. pretty straight forward math.
Apr 13 2013 5:46PM
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Miomo
Posts: 4302 - Karma: 14,133
Click for larger image
But then again, everyone that runs the X-Games is pretty retarded
Apr 13 2013 6:12PM
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BrownBomber
Posts: 675 - Karma: 446
Lost.

And to the post above, of course the people at X games are idiots. Picture invalid.
Apr 13 2013 7:50PM
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Z-Juice
Posts: 3151 - Karma: 1,504
I think that jump is close to 65 feet from lip to knuckle, and the tv graphic is wrong.
Apr 13 2013 8:01PM
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Crispy.
Posts: 6116 - Karma: 7,712
Yeah that's incorrect on there part, I'm sure that jump is at least 65 to the knuckle.
Apr 13 2013 8:15PM
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milk_man
Posts: 5252 - Karma: 5,978
I'm pretty sure they measure the size of the jump by how many gapers can fit in the gap.
Apr 17 2013 2:08PM
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icon1234
Posts: 3081 - Karma: 1,475
You actually measure the hypotenuse of the jump with respect to the knuckle? Wouldn't you just do the horizontal component so the base of the jump to the knuckle? Interesting...
Apr 17 2013 2:32PM
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