The load capacity is effected by the angle of the hang (as illustrated in Derek’s book) so if you are planning on pushing the weight limits of the product, make sure you achieve a solid […]. would it divide all the weight between the two studs? Depending on the size of your hammock, the trees should be at least three feet apart and strong enough to hold your body weight. Then, you should take the time to learn how to lay in a hammock. And see a much different ridgeline length in the image. Does the calculator only work if the hammock is slung exactly in the middle of the supports ? Just bought the app. I’m not good at physics either; I just spent a night in a Holiday Inn Express 😉 Seriously, I’ve had some help understanding this myself and I often have to refer to my notes to make sure I have it right. Then, you will need to gather your hammock hanging hardware like a drill, screws, and a stud finder. I purchased the calculator for my iPhone. I bought the app for using on my iPhone 5S/iOS7.1.2. I’m not that heavy, just want it to be sturdy, and again be cautious with the building structure. “. Derek, great calculator. I put in the length of the hammock and sit height, and then made my ropes to the the suspension height. The only force exerted is gravitation. I really want one in my yard, but the prefab one at the store was about the same size you describe. perhaps you could make the apk downloadable from your website, without passing by the playstore? The hammock is big light weighted and compact but big enough for 2 person , doesn't take up much space of go bag. Two people in one hammock? Or maybe I just need to go with what you said. If you need to save some space it will be enough to remove the hammock from its hooks. This is an interesting request that I’m considering when updating the app. I do appreciate your attempt to explain the physics to me and while I can grasp them theoretically, I’m just not wrapping my head around it completely. If we could put a scale under the rock while it were spinning in a circle it would register as being “heavier” than if it were just hanging straight down. http://www.smrgearme.com/buy-gear/ and it solves this problem of mosquito’s in spades! Again, thanks for taking time to answer guys like me who have spent most of our lives doing other stuff (I design and build golf courses), so this is a little different math for me. I bought your book and am learning a lot. Hell! In order to get the same sag and sit height, it feels like I need to move my tree straps up higher. If you put the anchor point at the highest point you reference, you could then hang your hammock at a higher angle (45) using the loop extender, or at a lower angle (30) by clipping directly to the anchor bolts. I’m sorry if your previous comment was lost, but I’m happy to respond (I try to respond to every question post to this site). I had a full size hammock with a stand and it was very big. I guess this would be more complicated, but also more accurate…. The most accurate measurement is if there is some tension to take up the slack, but not fully loaded. Reason I ask, seen straps rated at only 200 lbs, so given the hammock is rated at $400 lbs, they seem to think it’s enough. Falling is so not on my list of things to do. It’s more of a guide. Wow….took a while to get through all the comments. Thanks. A hammock (from Spanish hamaca, borrowed from Taíno and Arawak hamaka) is a sling made of fabric, rope, or netting, suspended between two or more points, used for swinging, sleeping, or resting.It normally consists of one or more cloth panels, or a woven network of twine or thin rope stretched with ropes between two firm anchor points such as trees or posts. I want to calculate all the values for a 35 and 40 degree hang-angle. The first thing to understand is that there is more than gravitational forces at play here. For our Single and Double Hammocks that ridgeline length is around 9’ (108 inches) to get an ideal hammock curve. Thanks. I have a probably silly question, but I have a cotton hammock and it seems to have no, or basically no suspension length. Consider the material your hammock is made with for its stretch potential and the amount of weight you will put on that type of material. Hi! Just bought a few 13′ hammocks for the kids to lounge on in the backyard. Ill also ask the developer. […] the ultimate hang har ogsÃ¥ en glimrende side med mye god informasjon og ikke minst den fiffige – hammock hang calculator. You can even download the Hammock Hang Calculator app for your smartphone so you have it in the […]. If you have a total of 250 pounds (occupant plus the hammock, suspension and any additional gear), that is the total gravitational force acting on all points in the system. I’d probably avoid it. You need to measure the overall length of the hammock, including the clew and steel ring. The web calculator has some limitations. Being light and compact hammock is much more easier to store rather than other sitting furniture like bean bags, chairs or eggs hammocks. Any thoughts on this. The walls are brick on one side, and sandstone on the other. I’ve heard this before. By the way, you should do the calculations with the catenary equation y=L cosh(x/L), it would give you more accurate results. Phil, I must have missed your previous comment/question. The calculator is just for estimating, as I cannot predict all the forces at play, just those I can easily calculate for known values. This distance prevents you from hitting the ground when you lay on it. For those Mayan-style hammocks, you want to measure the complete length, from clew to clew, which would be the nearly 13 foot length you mention. Here’s another hypothetical situation. For lounging, you can get by with the struts at thee minimum hang distance for your hammock, around 10 to 11 ft. Thanks for sharing your hammock Passion! The calculator will work but if there are too many fixed variables it can’t miraculously make the stand behave differently. Mike, given that your anchors do not change but you are changing the hammock, you should see a change in the hang point depending on what changes on the hammock. The issue has been supporting all the different device resolutions. The goal should be to create one large 6 x 6 foot blanket. A simplified answer (with some math if you’re interested): Each suspension line must produce an upward (vertical) force of half the hammock’s weight in order to hold it up. Hope you make a android version. Thank you for such a prompt reply ^_^, Hi, New interface and features. After the cotton hook latches to the bolt on the wall, the webbing begins immediately… how should I use the app in this case? First of, so glad I found you Youtube channel and website! I’ve bought the app and have a suggestion for the user interface – can you make the number boxes active so we can tap on them and change the number? Eno length of hammock -112 inches Thanks. I rarely take a stool backpacking. I doubt you would have gone to the trouble of making this site or paying a developer to create apps if it just didn’t work, but I can do better by eye than what this thing gives me. 2019 and can’t find the android version in Google Play. Some hammocks have a rope/line that connects these two points that is fixed, usually around 83% of the total length of the hammock fabric. I need to confirm that. Yes! The 83% rule is a good one to follow. Love the app. The calculation is more complicated than that. is shear force the lateral force on a single tree, or for both trees? I was bored so I worked out the equations with the food end higher than the head end. I use Lash-it myself, and even smaller line. Please email me directly so we can coordinate a good time. I was just calculating my ridgeline length with the 83% rule. Only experience so far is with ENO single nest and another cotton hammock using a hammock stand/frame. Thats not where I’ll typically use my hammock, but since I’m brand new to hammock camping, I want to practice setting it up. Thanks for the Calculator! For a 13-foot hammock, you would want a distance of around 12 feet. Hmm. Any guidance gratefully received. If I use a hammock length of 138 (112 + 13 + 13), strap length (strap only) of 55, the angle is 45. If I’m hanging outdoors, even in my yard, I like to have room for a tarp so I can sleep and be protected from the elements. The space feels brand new. The first thing it says it “restart required” and the second thing it says is”runtime error, location:[313,22] ui/MainView.js Message: Uncaught TypeError: Cannot read property x of undefined, Source: left :cWatermark.x. If you were building an ideal hammock hanging pergola, suitable for an assortment of hammocks (I currently own an ENO doublenest), what would be your ideal distance between posts (on each side), and what would be the minimum distance that would still work? This is a great option for disbursing the weight across multiple studs. If you weigh 100 units, than each side would share 50 units of vertical force. It is specific hardware that has issues. Hello, I entered all the appropriate info into the Calculator (span between poles–8.6 ft; hammock length 13 ft; sit height, etc.) for a bridge hammock, wouldn’t you just need to know the vertical distance (ridgeline height) between the center of the hammock and the ridgeline? If you wanted to stay out of the dirt, you would need to raise your straps. So thought why not use like a handy hammock or build the 1 side like the handy hammock and the tree. The hammock I am considering is one of the twin size which is 12.79′ long with a body length of 6.3′. My first hammock has been shipped yesterday and I’m excited to try it out. "),c=g;a[0]in c||!c.execScript||c.execScript("var "+a[0]);for(var e;a.length&&(e=a.shift());)a.length||void 0===d?c[e]?c=c[e]:c=c[e]={}:c[e]=d};var l=function(b){var d=b.length;if(0