Camping & Expedition Logistics: Food Rations, Stove Fuel, Water Treatment & Gear Weight

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

• Turn the itinerary of a fictional 10-day group trek into person-days, total calories per activity band, the average day and the packed food weight to carry.
• Measure the energy of one person-day of the menu, swap foods for denser ones at exactly the same kcal and work out how many kilograms the whole group saves.
• Look up the fuel use per litre for each night's camp conditions, total the trip's fuel with a reserve, round up to whole canisters and work out the weight you really carry.
• Size the water treatment supplies from fictional product labels – litres to treat, tablet strips, filter cartridges – and work out how much water each person carries across the longest dry stretch.
• Count the food days each person carries on every morning of the trip with a food cache on day 7, turn them into pack weights, find the heaviest pack and the longest leg that stays within the planning limit.
• Assign the group gear to six people, compare every pack with a target based on body weight, find the most overloaded person and count how many packs are outside the tolerance.
• Estimate the share of days lost to weather from eight past seasons, turn it into contingency days, and price the weight and cost of the reserve rations.
• Bring food, water and fuel together into the average pack weight for every day of the traverse, add the dashboard's check cells and chart the pack weight over the trip.