Segments and Equipment

segments

This guide is brief, it mostly contains pointers to more information. Equipment and consumable quantities are for the bare-minimum end of the spectrum, which might not be appropriate for you or your objectives.

Segmenting your trip

It is useful to think of your trip in segments. Examples of segmenting might be: different modes of travel, resupply points, shelters, etc.

  • What are the natural access/resupply points?
  • Group-size logistics: When the group get’s too big, we plan as “Independent Nations,” expecting to travel together, but able to peel off separately.
  • Food drops: In-person? Bear-proof containers?
  • Flights and landing zones

Pace

For each segment I make a best guess for pace and travel time, including weather days.

  • The Munter method is a good example of Micro-scale pace calculation. I don’t use it, but apply the same general idea to longer segments. Another example.
  • Brooks Range: Collecting information from friends about how fast we can expect to travel in tussocks, floating low-flow rivers, etc.
  • Pace factors: group, motivation, terrain, weather, equipment (weight)
  • I print out the segment lengths and expected paces as way to monitor progress on the trip

Food

“I can’t eat that, I’m on the Atkins diet.” (Client to Louis Sass, AMS Guide)
Backcountry Food Guide

Equipment

Sleeping System

I like down bags. I don’t have much trouble keeping them dry.

  • Sleeping with clothes gives me an extra ~10 degrees on my bag rating
  • If I’m cold, I boil water for a hot-bottle-cozy, a water bottle in an insulated case. The cozy makes a huge difference, maybe as much as 10 degrees.
  • Sleeping pad: Thermarest’s NeoAir XLite and NeoAir Xtherm can’t be beat. We carry the stock repair patches, as well as Tyvek tape. For winter, the Xtherm is enough by itself, but I needed a closed-cell foam pad when I was using the Xlite.
  • My biggest challenge is keeping the head of my sleeping bag dry. When possible, I wear my puff jacket and hood, hoping to catch as much moisture in the jacket rather than in the sleeping bag. Tje jacket dries out quickly during the day.

Shelter: Tarp, Mid, Tent, Nothing?

Several factors go into my decision about what to bring for a shelter… how long is the trip (miles, days), how important is recovery (better sleep in a heavier shelter), what are worst conditions expected? These numbers have worked pretty well for shelter weight:

  • 2 – 3 lbs/person 4-season, high exposure. The Hilleberg lineup has performed incredibly well on our trips. My Nallo is ~8 years old, maybe 2000 miles, and still fully functional.
  • 0 – 0.5 lbs/person summer, low exposure. I like the HMG tarp and Echo II.
  • 1 – 1.5 lb/person 3-season. It would be tough to beat the cost/performance ratio of the Big Agnes Fly Creek . I tried really hard to like the Stephenson Warmlite, which can’t be beat for weight, but managing condensation was a deal-killer.
  • We’ve used double poles to boost tent strength in high wind.
  • You can replace pole shockcord with picture-frame wire and a modified bolt to create a backup snow probe.

Stove and Fuel

We are usually deciding between a MSR canister stove (Pocket/Micro Rocket, Reactor) or MSR Whisperlite/XGK white gas stove.

Canisters at sub-zero temps

There are a few winter sprint trips where a canister might be the right choice, but you have to battle the frozen canister (the gas mix separates and partially condenses at ~25 F). Canisters with the most Propane and Isobutate in the mix will last the longest at cold temps; Butane is the killer. But all the cans seem to be about the same, and ratios change year to year.

  • Some models allow you to run the canister upside down
  • The Reactor somehow helps regulate canister pressure and will work better in the cold
  • Alpine Bomb, Reactor Bomb. This is potentially very dangerous (hence the ‘Bomb.’
  • In water (or pee!)
  • At really cold temps (-20 F), we needed to sleep with the canisters to get them to initially fire up.
  • Build an insulated closed-cell foam cozy for the canister

Whispelite/XGK

“You can come in, but the XGK stays outside.” (Bryn Clark, Denali)
Several friends think their Whisperlites never recovered from running gasoline, so my stove is white-gas only. The XGKs have been bombproof. They are slightly more powerful, but much louder.

  • Worth the weight for any trip over 6 days? Definitely in winter.
  • Reliable, repairable

We limit our fuel use to a minimum, melting snow and boiling water for dehydrated dinners, but not much else.

  • Tight lid and Backpacker’s Pantry Pot Parka
  • white gas: 1 oz/person/day summer
  • white gas: 4 oz/person/day winter minimum
  • white gas: 6-8 oz/person/day winter comfort/basecamp/cooking

Skis

Packrafts

Sleds

  • Factors that would help justify bringing sleds: flat terrain, big weight (>80 lbs), slow pace
  • Packrafts as sleds: Pretty good in new/soft snow (the packraft stays on the surface), but significantly more drag on old/hard snow. Proof of concept
  • How to rig a cheap kids sled

Nordic Ice Skates

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