- Feb 21, 2012 at 8:56 am #1842371Ron BellBPL Member
21 days- well then, glad that's settled.Feb 21, 2012 at 10:14 am #1842409
Huzefa, It should help dramatically.Feb 21, 2012 at 10:40 am #1842417
The following is a nylon fly useable-life deterioration graph for two flies. The first one appears to be close to what you tested; 70d PU coated Olive Drab (OD) nylon; this is the standard for small tents deployed by the US armed services. The second is a 30 denier yellow fly of the type that would be commonly used by an UL backpacker. It was a 1.1-oz (37g m2) nylon rip-stop fabric dyed with a shade (3) of yellow.Feb 21, 2012 at 11:18 am #1842443Dan DurstonBPL Member
@dandydanLocale: Canadian Rockies
Do we know how cuben fares with UV? Assuming the common 0.74oz variety.Feb 21, 2012 at 12:28 pm #1842481Roger CaffinModerator
@rcaffinLocale: Wollemi & Kosciusko NPs, Europe
That is consistent with my experience. Yellow nylon went like paper afetr a couple of years of heavy use, while the (same fabric) blue was unaffected. I think it has to do with the dye used.
cheersApr 8, 2012 at 2:12 pm #1865051Ken ThompsonBPL Member
@hereLocale: Right there
Ready for part 2Apr 8, 2012 at 3:22 pm #1865079Stephen MBPL Member
@stephen-mLocale: Way up North
Same hereApr 8, 2012 at 7:04 pm #1865130kevin timmBPL Member
@ktimmLocale: Colorado (SeekOutside)
There is a big difference in uv exposure vs colors from the testing I have doneApr 8, 2012 at 10:14 pm #1865186Jun 19, 2012 at 10:29 pm #1888517Eric BlumensaadtBPL Member
@danepackerLocale: Mojave Desert
I have a TT Moment "tunnel/cone" tent. It's design makes it VERY wind-worthy and it can handle a snow load better than most solo tents.
Although its perimeter floor and inner door venting nets make it totally unsuitable for winter (or dust storms. it still is an inherently strong and stable design. And with its optional light ripstop liner it can handle high condensation situations very well. I'm even considering extending the lining to cover the net inner door with a sanp-on panel.
I just wish this great design came in Cuben fabric. but then it would be a bit noisy in the wind, and very 'spensive.
As for "wet sag" of its silnylon I've painted the top 1/2 of the canopy with a 5:1 ratio of odorless mineral spirits to GE silicon caulk. Seems to keep it taughter when wet than before I did the coating. For sure some hard rains I've endured in the Moment resulted in no "mist-thru" so I think the light canopy coating did its job very well.
To further reduce sag I've found some light elasticized cord (about 3/16 " diameter) and made loops at each end tie-out. These cords are new so I only know it keeps the tent fairly taught all night in non-rainy conditions.Sep 8, 2012 at 2:39 am #1910282
Ready for part 2 tooSep 8, 2012 at 8:08 am #1910326Ken ThompsonBPL Member
@hereLocale: Right there
It's been nine months. When should we expect to see part two?
Been so long that even Roger's tents will be available.Jan 8, 2013 at 2:11 pm #1941918Michael RayBPL Member
Almost a year out, at this point I think we should be asking will there be a Part 2?Jan 8, 2013 at 2:17 pm #1941925Nick GatelBPL Member
@ngatelLocale: Southern California
I'm still waiting for the updates to the HMG pack and MLD Trailstar, both of which were published before this article.
Hmmm… I wonder if this constitutes a trend?Feb 22, 2013 at 4:03 am #1957317
Ryan, will there be a part 2 or not? And if so, when?Jul 16, 2013 at 10:16 pm #2006975
… Is not here. Just trying to get Ryan's attention to ask whether this is still planned or still born.Nov 10, 2015 at 9:26 am #2237228Michael RayBPL Member
Bumping once again in the faint hopes of an update. I'm particularly interested in the amount of force exerted on tieouts, which of course depends on shelter shape, # of tieouts, etc.Oct 8, 2016 at 3:42 pm #3430077Bryan BihlmaierBPL Member
@bryanbLocale: Wasatch Mountains
OK, Ryan. Excellent article and hypotheses. But where’s the data? Since it’s been almost 5 years since you wrote this “Part 1” article, can I assume you will not be publishing any data or test results?Aug 15, 2019 at 1:42 pm #3606200
I love this article, has the inline force transducer setup been described in details somewhere?Aug 16, 2019 at 7:37 pm #3606364
I just bought an Ultamid 4 and are making plan to storm proof it for the winter. What do you guys think of the idea of using these Micro carabiners to attach the guylines on the upper part of the shelter?
<span style=”display: inline !important; float: none; background-color: #ffffff; color: #000000; font-family: ‘Helvetica Neue’,Helvetica,Arial,sans-serif; font-size: 15px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 1.74em; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;”><span>https://www.extremtextil.de/en/micro-0-carabiner-40mm.html</span></span>
Also, should I trust the Linelocks with 2,8mm HMG cord along the bottom to hold or should i tie in fixed loops there?
Would there be any benefit in adding some kind of shock absorbers to limit dynamic forces to the 7 high tieouts of the Ultamid 4?
/JensAug 17, 2019 at 4:00 pm #3606457MarkBPL Member
Jens in my experience thos carabiners will not take any force
I bent 2 on my Duplex doorsAug 17, 2019 at 6:15 pm #3606464
Thanks Mark, specifically where did they bend, they also have these with 1g more aluminium, could be that much stronger…Aug 18, 2019 at 5:10 am #3606559Matt DirksenBPL Member
@namelesswayLocale: Mid Atlantic
“I just bought an Ultamid 4 and are making plan to storm proof it for the winter.”
What would you actually need to do in order to “storm proof” it?
It’s already pretty “storm proof” the way it is.
Although I’ve had one for several years, I’ve never used it in more that 50mph winds (and no snow on that particular trip). I’m sure there’s a bunch of folks out there that have pushed it much further. The only thing I might consider is to double up the upper guy lines, but not add a carabiner. Not sure what that would do since the weak link is probably the tie out itself. And if that were to tear out… well you probably shouldn’t have parked it there in the first place..:Aug 18, 2019 at 6:53 am #3606563MarkBPL Member
The entire C section bends and doesn’t bend back, so the gate becomes useless
It’s more reliable and a lot lighter to tier a loop knot then thread through the line, works greatAug 18, 2019 at 9:36 am #3606564
Mark, I currently tie a figure eight at the tie out end of the guy line and loop the guyline through it. My idea with the carabiner would mainly be to make it more modular in winter and save fingers from freezing, Even with the figure eight pre tied it is a bit fiddely to loop it trough with thick gloves.
Also, I had the idea that a carabiner would be a less abrasive interface so that the tie out would last longer. Naturally the carabiner solution is not UL, but 25-30g in total for the 7 attachments is not that much consirering what it adds in comfort for me.
Matt, How long did you cut the HMG guylines? Do you you any tensioners on the upper? Have you ever had the line locs slip? I dont see how doubling up on the guylines would anything the the tie out is the wakest point?
Do you guys know if somebody has ever measured the breaking strenght of the Ultamid (or similar DCF construction) tieouts ?
Wat do you guys think of adding an elastic loop at the tie out to lower the dynamic force peaks and possibly save the tie outs?
Finally, the whole idea behind choosing the Ultamid 4 was to be able to choose more bold parking spots ;-)
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