Showing posts with label Tarp. Show all posts
Showing posts with label Tarp. Show all posts

Sunday, 30 January 2011

Alpkit Rig 7 Tarp, Pitching with Paddles


Classic Lean-to

Although I still haven't managed to actually try the Alpkit tarp I was messing around trying to pitch it in different ways and as I'd like to use it on canoe trips I thought I'd see how it went using paddles rather than trekking poles. The only real difference is that you can't adjust the length of a paddle which would have restricted the pitching options but I managed to come up with a way around that problem. I've no doubt that my method is nothing new and there may well be better ways of doing it but this works for me.

The problem with tying the guylines around the shaft of the paddle is that they have a tendency to slip down the shaft so I managed to wrap the guyline around the shaft, bring it up over the handle and back down to the peg. While that worked ok the guylines really needed to be longer so I simply made two guyline extenders from paracord.


Guyline Looped around paddle to prevent slipping

In addition to the 2 main guylines I had initially only made 4 guylines for the lifter loops but added another 2. I think the more cords/guylines you have the better as it gives you more pitching options and the tighter you can get the tarp the better it is.


Same Basic pitch as above, I simply lowered the tarp at one end by sliding the rear guyline down the paddle



Obviously it's just as easy to pitch like a tapering ridge tent, wrapping the guyline around the shaft just above the blade at the low/foot end keeps the guyline from slipping down. One other thing I found was that in ridgetent formation if the paddle is angled to the side it helps to use a tent peg to stop the paddle from slipping sideways.


Basic Sloping Ridge


Paddle Pegged to prevent Sideways slip


3 Line Overkill, It Does need 2 Guylines though



Finally I tried it with both paddles tied together in A frame shape which is obviously very stable, again a peg keeps the paddle from slipping sideways. I used 2 guylines to pull the edges of the 'porch' closer to the paddles and in the pics below I've simply tied them off to the main guylines, while it worked ok I found that 2 prussik loops fitted Alpkit mini clipper carabiners worked better and allowed more adjustment, the prussik loop attached to the guyline and the mini clipper attached to the tie out loop on the tarp. Set up as below it's too short to use without a bivvy bag but it's very stable and provides plenty of space for cooking and so on.


Tarp Tensioned by tying off 2 secondary guylines to the main guylines. I've made prussik loops which to do the job much better.





I'm quite sure none of this is ground breaking stuff and there may well be better ways of achieving the same result but it's kept me amused trying different things. If I was using it in a forest or could find a few sticks I could increase the internal space by using the lifters as intended, without something to raise the guylines they really only serve to create some tension however if they're tightened too much they tend to flatten the tarp reducing internal space so.

To me a tarp is a bit like lego, there are few rules and seemingly no limit on the amount of configurations you can come up with given time.

Wednesday, 12 January 2011

Alpkit Rig 7 Tarp, Limited only by Imagination?



I've been pretty fed up the past 2 weeks as the snow has gone and been replaced by the usual dreich weather that we get here. I was having a look on some websites and when browsing the Alpkit site I noticed that the Rig 7 Tarp was back in stock. I'd looked at them before as they seemed a reasonably priced way of trying a tarp, my only previous experience being with a German army poncho. I went ahead and ordered it and as is normal with Alpkit it arrived very quickly.



The Rig 7 is the smaller of the 2 tarps that Alpkit sell and is a basic flat sheet tarp measuring 2800mm x 2400mm and weighing in at 520g. It has webbing loops on all 4corners with 3 reinforced pegging points along each edge, in addition there are 8 reinforced lifter loops, 4 along the ridge line and 2 lower down on each side.





The tarp is made from 2 pieces of siliconised nylon so there's a seam which runs across the tarp but this appears to be seam taped. The tarp came with a stuff sack but I'll replace it with something a bit bigger as it's a bit of a tight fit when guylines never mind pegs are added.


Basic A Frame

I had a 4 2mm dyneema guylines already made up and 2 4mm guylines made from the cord I'd bought in Decathlon a while back so with those, a assortment of pegs and my trekking poles I set it up. The 1st set-up was just a basic A frame which provides plenty of length but acts like a wind tunnel, I then tried what I think is called a cave which provided more shelter but less space, finally I tried a kind of long low ridge tent shape and added some lifters to create a bit of foot space.


Cave?


As Above


Low & Wide


As Above


As Above Inside

I didn't try anything else at that stage but after work during the week I added 4mm cord loops to all the attachment points to allow me to add the guylines to any point I wanted. I made the guylines with a loop on the end which I simply attach to the fixed loops as shown below.


4mm Main Guyline Attached to Fixed Loop


2mm Dyneema Guyline Attached to 4mm Fixed Loop

I wasn't working today and it wasn't raining so I took it out again to see what other configurations I could come up with. I tried a Flying V variation, at least I think that's what it was and another ridge tent shape with and without a beak. I'm sure there are a multitude of other variations so I'll have to search the Internet but for now it seems quite versatile.


Kind of Flying V I think!!


As Above


Ridge Style, Without Beak


As Above


Ridge Style with Beak, Additional Fabric held back by tying lifter loops together, they can be pegged towards the main guyline.

I'll keep playing with it but it's unlikely I'll use it just yet as I have a week off starting next Wednesday and there's a slight chance that I'll be able to get over to Scotland for a few days, probably around the Cairngorms. If that trip happens then I'll be busy once I return as I have a lot stuff to sort out just now. I'm looking forward to trying it though as I didn't have any problems as such with the army poncho.

Saturday, 5 September 2009

Single or Double?

As I mentioned I've been trying my Phreeranger as a single skinned tarp tent, in fact I slept in it again last night and to be honest I'm wondering if I really need a double skinned tent. There was some condensation on the inside of the fly this morning but again no drips. I was using a bivvy bag anyway so a few drips or moisture knocked off due to heavy rain/wind wouldn't have been a problem. There are advantages to using a double skin tent though, the oft quoted one is that they reduce condensation but I'm not convinced that this is the case as I've often found the inside of the fly to be wet when using a tent, what the double skin provides though is a barrier between yourself and the fly but with the Phreeranger and most Tarp Tents there's so much space that there's little chance of touching the fly anway. The other 2 advantages of an inner are heat/draft reduction and bug proofing, the fist may not be too important if you're using a bivvy bag as it protects from drafts and should upgrade the performance of the sleeping bag, I would however prefer to have some protection from insects and I don't believe a bivvy bag even if it has a bug net offers quite the same protection/ease of use.

I've been looking at some of Henry Shires 'Tarptents' and they solve the bug issue by having sewn in netting and groundsheet. The only issue remaining is loss of heat but I wonder if the bivvy bag overcomes this. My bivvy bag is an old heavy Goretex one weighing in at 596g which is heavier than my inner tent but I don't think I need the level of protection that my bag provides so something smaller and lighter would be fine assuming it was breathable enough, perhaps even something like the PHD Drishell cover which only weighs 163g. If using a bivvy bag allowed me to use a sleeping bag with a lower rating then some of the weight of the bivvy bag is offset against the weight saved by using a lighter sleeping bag.

I like the idea of the 'Tarptent' Rainbow/Double Rainbow, the Rainbow including poles/groundsheet/bug net and 6 pegs weighs 965g, add the PHD sleeping bag cover for a total weight of 1128g, the larger Double Rainbow weighs 1135g, or 1298g including the bag cover but offers a massive amount of space, 2250mm L x 1220mm w x 1100mm H with 600mm wide (at the apex) porches on both sides.

I can't see any other disadvantages but if anyone can think of something that I've overlooked please add your comments.

http://www.tarptent.com/photogallery.html

http://www.tarptent.com/rainbow.html

http://www.tarptent.com/rainbowRev.html

http://www.tarptent.com/doublerainbow.html

Tuesday, 2 December 2008

First Time Tarping (or should that be Ponching?)















A while back I bought myself a German Army poncho and sleeping bag with the intention of trying the poncho as a tarp. I eventually got around to trying it with a mate who had a Hennessy Hamock. It all went pretty well considering we had a bit of snow on the ground and the sleeping bag was warm enough considering I was fully clothed and wearing a duvet jacket. The only problem was my feet were freezing and that kept me awake for a while but I've since bought a pair of Nanok bivvy boots from 'Genuine Army Surplus' for £5.99, that should sort the feet. One other small detail, I had my mobile phone in my trouser pocket but I'd forgotten to switch off the alarm, it went off a 4.00am and I couldn't get to it as the sleeping bag has arms which effectively meant my arms were outside the sleeping bag!!! had to let it play itself out..........twice!!!

I used my Swedish Army stove conversion with the hanging kit which was great, 1st thing in the morning, what with having sleeves in my sleeping bag I didn't have to get up or out to make a cuppa, lovely.