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floorless shelter techique


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Viewing 8 posts - 26 through 33 (of 33 total)
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  • #1547349
    s k
    Member

    @skots

    Thank you, Robert and Derek,

    I've seen pyramids designed for Antarctic use that have four hip poles as well as a center pole… stronger, heavier, and less portable. Apparently necessary for early century Antarctic exploration, though.

    I hadn't considered the shorter tie, flatter as well. The higher guy points also seem to give the fabric below the guy point, the potential to catch more wind and "belly in" rather than spill the wind upward and edgeward.

    Jim, what kind of liner to you have in your pyramid?

    As an aside, Derek, this may be more convenient than returning to the scene of the train wreck. I was wrrr, wrrrr, wrrroo, wrong! The sentiment was apparently born out of normalcy! Where do you want the money sent?

    #1547362
    Derek Goffin
    Member

    @derekoak

    Locale: North of England

    Hi Skots,
    As you say the higher the tie out the more likely it will be counter productive in strong winds. On the other issue I would have had more sympathy if you had been correct.

    #1547381
    Jim W.
    BPL Member

    @jimqpublic

    Locale: So-Cal

    Skots asked "Jim, what kind of liner to you have in your pyramid?"

    My existing pyramid is 1.9 ounce ripstop- uncoated for the inner tent, coated for the fly and floor. It has short 12" sidewalls which helps with interior space and snow shedding, but also means that tent and fly need 8 long guylines each. The design is much more complicated than the simple pyramid style of Oware and others, which is what I'll use for my next tent.

    #1547568
    Roman Dial
    Member

    @romandial

    Locale: packrafting NZ

    SK,

    Sorry not to reply sooner.

    "heavy NF and MH domes are the commonly used shelters for sleeping in places like Denali" Yes domes are favored in high winds and mountains because they have less steep walls. Also that's what's been on the market, although half cylinders (in the old days these were the Early Winter designs and Stephenson Warmlght tents) are also coming back.

    "Do you have an opinion on why pyramids aren't used as commonly for sleeping."
    Yes, I have plenty of opinions! Pyramids are old style and more fussy to set up. Domes are super easy, pitch, place and anchor. Also easy to clean — just shake them out.

    "Would you or have you used a pyramid in places like Denali?" Yes, if weight was the primary factor and I was planning on spending less than 30% of the days tent bound. However, a pair of friends/climbing partners took a BD Megamid to 12,000 feet on AK's 16,000 foot Mt Sanford in February. A bad storm came and eventually blew away their 'mid, leaving them "naked" so to speak. Lost both sleeping bags and all fire. Epic self-rescue ensued. But a good illustration of why floorless pyramids are not poular on big mountains with high winds.

    "Do you think that sod clothe/snow flaps are useful/necessary or frustrating? " I have been in post production mods with them and have them on my old Dana Design Nuktuks. Not really a fan. They get dirty and don't seem to be worth the additional weight to me.

    " Do you see a value in wall ties, and where do you think that they are best placed." Yes, but I am not knowledgeable to where they should be placed. If any of my floorless pyramids have them (I have BD Megamids, the Arcric 1000 cuben fiber mid, Nuktuks, and Golite Hex3, maybe some other custom jobs, too) and if those have them Ihave never used them.

    "Do you use a bivy/bag cover when using a pyramid during mid winter conditions? " My favorite set up in winter is a synthetic hooded puffy jacket worn inside a summer down bag inside a synthetic non-zip overbag (I have ones with insulation all around and ones for 2-4 people that we all pile into; use depends on temp and people and what we're doing).

    " Is convection or moisture a bigger problem in mid winter mid life? " Hmmm. in mid-life (i.e 35-55 years old) I think moisture is the problem :) Kidding aside — by Convection do you mean convective heat loss? As in wind? In snow that's easy to solve by shoveling snow around edges. I find moisture is less a problem since the snow absorbs humidity.

    #1547570
    Roman Dial
    Member

    @romandial

    Locale: packrafting NZ

    Yes, Robert, you assumed my meaning correctly.

    #1547623
    Roger Caffin
    BPL Member

    @rcaffin

    Locale: Wollemi & Kosciusko NPs, Europe

    I'll vote for sod cloths on a winter tent.

    In When Things Go Wrong I describe what it was like to have spindrift blowing into the outer tent, piling up against the inner tent. I tried building snow walls (at 8 pm and 1 am) but the wind just eroded them away.
    5642SSpindriftInside

    Cheers

    #1547648
    >> Bender <<
    BPL Member

    @bender

    Locale: NEO

    What do you guys think of the Black Diamond Beta Light & Beta Mid? The Beta Mid has to be one of the least expensive tents of this style. I have seen it as low as $70 and weight is not bad considering the price. The Beta Light is listed at 19oz and about 2x the price.

    #1547703
    s k
    Member

    @skots

    "(i.e 35-55 years old) I think moisture is the problem :)"

    Maybe 40-60, and moisture is still a problem. But…it can be purchased in a bottle and decanted into a BPL Mcro Drop Plus. (Plus is code for artificial moisture compatible.) When I weigh it, the read out always blurs into a minus sign. Go figure!

    Thanks for the through response.

Viewing 8 posts - 26 through 33 (of 33 total)
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