Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 30
  1. #11

    Join Date
    Oct 2006
    Location
    Elmira, NY
    Hammock
    WB Ridgerunner, Dangerbird
    Tarp
    Big Daddy
    Insulation
    HG 3 Season/IX UQ
    Suspension
    Straps
    Posts
    1,859
    Images
    10
    I personally always used a 24-25" pad even with the wings. Be advised that the ENO product only accepts a 20" wide pad. That may be OK but if you want one for a wider pad you will have to make it yourself. SPEs are thankfully one of the easiest things to sew and really do work well.

  2. #12
    Moderator
    Join Date
    Jan 2011
    Location
    South Central IN
    Hammock
    WBRR, Lots of DIY
    Tarp
    MacCat; Cloudburst
    Insulation
    Lynx, Ridge Creek
    Suspension
    Varies
    Posts
    5,153
    Quote Originally Posted by peripatew View Post
    Thanks for the feedback on the pad buckling. Does it do that in all your hammocks? Specifically the double layers? I've yet to own a double layer.
    It will do it with all gathered end hammocks.

  3. #13
    BillyBob58's Avatar
    Join Date
    Jan 2007
    Location
    Tupelo, MS
    Posts
    8,463
    Images
    353
    Quote Originally Posted by peripatew View Post
    Great links everyone. So how does R-value translate into a degree rating? Is there a good way to estimate this? I know everyone sleeps different, but just curious.
    I think rule of thumb is r value one = about 10-12*F of insulation.

    So using 70F as a starting point, R1 should get most folks to 60 or 58, ball park.
    For I consider that the sufferings of this present time are not worthy to be compared with the glory that is to be revealed to us....that the creation itself also will be set free from its slavery to corruption into the freedom of the glory of the children of God. For we know that the whole creation groans and suffers the pains of childbirth together until now.
    Romans 8:18,21-22

  4. #14
    Senior Member peripatew's Avatar
    Join Date
    Nov 2011
    Location
    Eugene, OR
    Hammock
    WBBB 1.1 dbl
    Tarp
    Superfly
    Insulation
    Incubator
    Suspension
    Web for now
    Posts
    150
    Quote Originally Posted by Miguel View Post
    I personally always used a 24-25" pad even with the wings. Be advised that the ENO product only accepts a 20" wide pad. That may be OK but if you want one for a wider pad you will have to make it yourself. SPEs are thankfully one of the easiest things to sew and really do work well.
    Thanks for the feedback on the pad width!

  5. #15
    Senior Member peripatew's Avatar
    Join Date
    Nov 2011
    Location
    Eugene, OR
    Hammock
    WBBB 1.1 dbl
    Tarp
    Superfly
    Insulation
    Incubator
    Suspension
    Web for now
    Posts
    150
    Quote Originally Posted by BillyBob58 View Post
    I think rule of thumb is r value one = about 10-12*F of insulation.

    So using 70F as a starting point, R1 should get most folks to 60 or 58, ball park.
    Simple enough! Thanks. So the reverse is true too? A 20* UQ has an R value of 5?

  6. #16
    BillyBob58's Avatar
    Join Date
    Jan 2007
    Location
    Tupelo, MS
    Posts
    8,463
    Images
    353
    Quote Originally Posted by peripatew View Post
    Simple enough! Thanks. So the reverse is true too? A 20* UQ has an R value of 5?
    Well, I have not seen quilts/bags rated for R-value, but that makes sense. Or if you use the higher figure of 12 ( maybe even a bit over 12 ) r= 4.16.

    But I'm not sure how exact the figures are on this. For instance, Youngblood - the designer of the Speer SPE - had a table that showed some "observed" workable temps using his SPE with various pads. ( Edit: I suppose he managed to test the results in a hammock or he had some friends to help him. And I suppose as usual individuals will vary greatly! )

    He showed that a 1/8" CCF pad @ r 0.5 was "good" to 63 , or 70-63=7, and 7 divided by R0.5= 14F per R!

    While a 1/2" pad with R 2.2 worked at 43. So 70-43= 27 . 27 divided by R2.2= 12.272 per R.

    1" pad at R 4.3 good to 17F. So, 70 minus 17 = 53 divided by R4.3 = 12.325 per R.

    BUT, with an inflatable 1" pad rated at R 2.3 he showed 47. 70 - 47 = 23/2.3= 10F per R! Several other inflatables only show about 10F per R unit.

    So I guess we have a ball park of 10-14F per R, with the thinner CCF pads being a little higher on the R per inch scale. But mostly about 10 for the inflatables ( based on their R rating ) and about 12.5 for most of the CCF pads.

    But here is where a monkey wrench gets thrown into the machinery: a lot of folks are cold in a hammock even at 75. Would these observed temps still work for them, or do we need to move the "good to" temps up 5F? But, if we need to move those workable termps up, it does not change the degrees per r value guestimate.

    But if the "75F" folks are still good with a 1/8" pad @ 63F, or with a 1" pad to 17F, then the degrees of protection per R value are even higher than the above calculations indicated.
    Last edited by BillyBob58; 11-28-2012 at 14:47.
    For I consider that the sufferings of this present time are not worthy to be compared with the glory that is to be revealed to us....that the creation itself also will be set free from its slavery to corruption into the freedom of the glory of the children of God. For we know that the whole creation groans and suffers the pains of childbirth together until now.
    Romans 8:18,21-22

  7. #17
    Senior Member peripatew's Avatar
    Join Date
    Nov 2011
    Location
    Eugene, OR
    Hammock
    WBBB 1.1 dbl
    Tarp
    Superfly
    Insulation
    Incubator
    Suspension
    Web for now
    Posts
    150
    Quote Originally Posted by BillyBob58 View Post
    Well, I have not seen quilts/bags rated for R-value, but that makes sense. Or if you use the higher figure of 12 ( maybe even a bit over 12 ) r= 4.16.

    But I'm not sure how exact the figures are on this. For instance, Younblood - the designer of the Speer SPE - had a table that showed some "observed" workable temps using his SPE with various pads.

    He showed that a 1/8" CCF pad @ r 0.5 was "good" to 63 , or 70-63=7, and 7 divided by R0.5= 14F per R!

    While a 1/2" pad with R 2.2 worked at 43. So 70-43= 27 . 27 divided by R2.2= 12.272 per R.

    1" pad at R 4.3 good to 17F. So, 70 minus 17 = 53 divided by R4.3 = 12.325 per R.

    BUT, with an inflatable 1" pad rated at R 2.3 he showed 47. 70 - 47 = 23/2.3= 10F per R! Several other inflatables only show about 10F per R unit.

    So I guess we have a ball park of 10-14F per R, with the thinner CCF pads being a little higher on the R per inch scale. But mostly about 10 for the inflatables ( based on their R rating ) and about 12.5 for most of the CCF pads.

    But here is where a monkey wrench gets thrown into the machinery: a lot of folks are cold in a hammock even at 75. Would these observed temps still work for them, or do we need to move the "good to" temps up 5F? But, if we need to move those workable termps up, it does not change the degrees per r value guestimate.

    But if the "75F" folks are still good with a 1/8" pad @ 63F, or with a 1" pad to 17F, then the degrees of protection per R value are even higher than the above calculations indicated.
    Wow! Great post. Make sense and helps when looking at CCF, inflatables, and sleeping bags. I wonder if most inflatables how less F per R since they were likely partially inflated? Or if there is more heat loss for inflatables that are up in the air vs. on the ground.

  8. #18
    HappyCamper's Avatar
    Join Date
    Aug 2007
    Location
    WV
    Hammock
    Warbonnet BB, 1.1 single
    Tarp
    JRB11x10 Z-P cuben
    Insulation
    Yeti JRB WestMtg
    Suspension
    webbing, Dutchclip
    Posts
    3,523
    Images
    47
    Oware sells a very thin (3/16) wide pad. I use this to supplement my underquilt in cold/windy weather to keep sides warm and cut down on cold spots. It does fold up on you and like any ccf pad you can get condensation under you. I move around a lot so I have less of a problem with this than others.
    I intend to live forever, or die trying. -- Groucho Marx (1890 - 1977)

  9. #19
    Senior Member
    Join Date
    Jul 2012
    Location
    Corpus Christi, Texas
    Hammock
    Blackbird 1.1 DL
    Tarp
    WB Superfly
    Insulation
    Evazote foam 1/4"
    Suspension
    Stock Straps
    Posts
    123
    I have recently been asked to test some samples of 40X72 eva pad by gossamer gear. So they should have a new supply in the near future. I have cut mine down to mummy shape and it has greatly reduced the buckling.

  10. #20

    Join Date
    Oct 2012
    Location
    Washington, DC
    Posts
    51
    I velcroed wings on my ridgerest and it works really well (I took two ridgerest pads, cut pieces from one and velcroed them on the other). Contact cement worked wonders for attaching the velcro. I wish I could post pictures though -- been having IT issues accessing HF.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •