00 / TOOL DIRECTORY
Jump straight to the calculation.
The tools still share data and local saved state, but the rest of the Scotland guide no longer sits between them.
01 / SHARED VEHICLE CORE
Set the van once. Run every tool.
The Trekker X Automatic remains the default. Change the master numbers for another campervan and every connected calculator on this page follows.
One profile drives every tool.
The Trekker X Automatic is loaded as the factory baseline. Edit these master values for another campervan and the payload, off-grid, expedition budget and vessel launch tools will immediately use that vehicle instead.
Edit the vehicle master inputs — applies to every calculator
Local master profile: changes are stored only on this device and are never submitted. The factory baseline remains available through the restore button. Always use the figures on your own vehicle plate, handbook and manufacturer specification.
Payload calculator
Adjust the crew, liquids and kit actually travelling. The calculation now runs from the shared Swift Trekker X Automatic (2025) profile and its 370 kg user payload.
What the active profile already countedThe Trekker X baseline includes a 75 kg driver, diesel at 90% of a 70 L tank and an 11 kg LPG allowance. The calculator charges only the difference for those items.
Working densities + open capacitiesWater is estimated at 1 kg/L. The active profile supplies fuel density and tank size. The 65 L Trekker fresh tank remains visible as the default reference, but water entries accept larger values for other vans or auxiliary containers. Inputs stay on this device.
Planning aid / not a certificateProduction tolerances, fitted options and axle distribution are not captured here. Confirm the plated limits, actual tank sizes and LPG installation, then use a loaded weighbridge and record both axle weights. Swift MRO notes ↗
02C / OFF-GRID ENDURANCE CORE
Know what runs out first.
Model parked endurance across battery, solar, fresh water, grey water, cassette capacity and LPG. It currently uses the Swift Trekker X Automatic (2025) master profile; edit that profile once to recalculate for another campervan.
Take the result further.
Keep a result, follow the journeys, join the future community or help improve the assumptions with anonymous real-world touring data.
The three community destinations are placeholders for now; they do not collect or transmit anything.
Active master profileThe Trekker X baseline supplies its 100 Ah battery, 12 V system, 110 W solar, 65/55 L tanks, 18 L cassette and 6 kg usable LPG estimate. Edit vehicle profile ↑ Trekker source ↗
How the estimate worksElectric endurance combines the active profile’s battery and voltage with estimated daily solar and other charging. Fresh carried can exceed the profile tank figure for auxiliary containers; grey, cassette and LPG use the shared master capacities, and the shortest duration becomes the headline.
Planning aid / not a promiseShade, cloud, temperature, battery age, appliance duty cycles, heating demand and real behaviour can change the result sharply. Read the control panel, inspect the stores and retain a practical reserve before relying on any remote stop.
02D / EXPEDITION BUDGET CORE
Know the cost before departure.
Model fuel, pitches, ferries, food, experiences and contingency in one live plan. The 14-day Scotland circuit and Swift Trekker X Automatic (2025) are loaded as the starting point, but every trip cost remains editable.
Shared vehicle profileThe fuel calculation uses the Trekker X Auto’s editable 28 UK mpg planning economy and 70 L fuel tank. Edit the master profile ↑
Open trip assumptionsThe Scotland figures are a useful starting state, not hard limits. Change the duration, route distance, currency, prices, nights and spending style for any campervan expedition. Currency selection changes labels only; it does not convert entered amounts.
Planning aid / verify real pricesFuel prices, pitches, ferries, tolls and attractions change. Replace the defaults with current quotes and bookings, retain contingency, and treat the result as a planning estimate rather than financial advice.
02E / VESSEL LAUNCH SEQUENCE
Nothing moves until the vessel is ready.
Run a physical departure check that understands the active campervan profile. The Trekker X roof, awning, powered step, hook-up, LPG and cassette checks are armed by default; other owners can disable equipment, mark individual checks not applicable and add their own procedures.
Profile-driven applicabilityDeparture-equipment switches in Vehicle Master Core ↑ automatically remove unavailable roof, awning, step, hook-up, LPG and cassette tasks from the score. Any individual check can also be marked N/A.
How launch authority worksAny open critical check produces HOLD. Once critical blockers are complete, remaining advisory checks produce CAUTION. CLEAR TO LAUNCH appears only when every applicable check has been physically completed.
Physical check / not a roadworthiness certificateNever tick from memory or merely to improve the score. Walk to the item, inspect it and follow the vehicle, equipment and child-restraint manuals. This tool cannot detect faults, loading, tyre pressure or unsafe maintenance.
02F / EXPEDITION LOADOUT CORE
Pack the trip, not the entire house.
Generate a first-timer-friendly manifest from trip length, crew, laundry and shopping cadence. It starts with the 14-day Scotland circuit, two adults, one baby and Percy, but every trip input, recommended quantity and working weight can be changed for another crew or campervan.
Load three days. Top up as you travel.
A compact rolling food load protects fridge space and payload while keeping one simple emergency meal in reserve.
FIRST-TRIP RULE: Do not fill every cupboard before learning how the van works. Keep one easy meal per person, buy heavy drinks near use and make the first top-up a deliberate chance to remove what is not earning its space.
Nothing essential left to memory.
Open each category, tick items only when physically packed, mark anything unsuitable as not needed, and replace every working weight with the figure from your own product or scales.
Building recommendations…
New and empty campervanThe “empty-van first load” filter surfaces permanent basics such as the kettle, hook-up cable, food-grade water hose, levelling ramps, toilet supplies, bedding, cookware, first-aid kit and cleaning equipment. Confirm what the dealer already supplied before buying duplicates.
Payload connectionThe manifest excludes people, diesel, LPG and fresh/waste tank water. Its payload comparison reads those live assumptions from Payload Core ↑, and “Send weights” replaces that calculator’s gear, food, drink and baby-supply entries with this manifest.
Working weights / verify physicallyProduct weights, packaging and quantities vary greatly. This is a planning aid, not a loading certificate. Weigh heavy items, keep mass low and between the axles, respect individual axle limits and complete a fully loaded weighbridge check before the first major trip.
02G / UK ACCESS STACK OPTIMISER
Make every card earn its place.
Model the annual cost, likely uses, direct saving and touring coverage of a UK membership wallet. The Nebuchadnezzar’s seven active memberships plus the free Woodland Trust layer are loaded first, but every price, use, value, category and nation count can be edited for another traveller.
Price the wallet you actually carry.
Use the renewal amount you genuinely pay, count realistic visits or nights, and replace the average saving with your own destinations. A layer can be strategically useful even when it does not recover its cost in cash.
What to keep, use or verify.
Share the stack.
Keep a result card, follow the journeys, join the future community or contribute an anonymous membership saving or access tip.
The three community destinations are placeholders for now; they do not collect or transmit anything.
Starter prices / replace at renewalThe default household figures use published standard or direct-debit prices checked on 3 August 2026: NT family, English Heritage family/joint, RHS joint, Forestry England national, CAMC and C&CC digital. RSPB uses an editable £84 working annual contribution. Offers, concessions, donations and renewal prices can differ.
Access is not one universal ruleReciprocal admission, guests, parking, booking windows and partner-garden dates vary. Open the UK membership guide ↓ and verify the destination itself before relying on the score.
Decision aid / not a price promiseThis calculator values only the savings you enter. It deliberately keeps conservation support, member-only networks and flexibility separate, so a low cash return is not presented as an instruction to cancel a membership you value.
02H / CAMPERVAN TRAVEL PASSPORT
One private clearance desk for every journey.
Turn documents, cover, bookings, vehicle checks and the live calculator cores into one departure verdict. It opens with the Nebuchadnezzar’s Scotland plan, but every field and requirement can be adapted for any campervan, crew or destination.
Six cores, one departure gate.
Payload and Launch can hold departure. Off-grid, Budget, Packing and Access stay visible as planning intelligence, so this passport never hides a weak assumption behind a document score.
Clear what applies to this trip.
Complete the physical check, optionally add an expiry date, mark an item not applicable or add your own rule. International, child, pet and crossing checks appear only when the journey profile needs them.
Let the passport become a logbook.
Keep a lightweight local record of planned and completed trips. Add a place, date, distance and nights; nothing is uploaded and every stamp remains editable.
Share the clearance, not your documents.
Create a branded result card that contains only the non-sensitive journey summary, or use the future community channels when they open.
Result cards exclude document, registration and policy identifiers. Community buttons are placeholders and transmit nothing.
Official checks / before international travelRecheck destination and transit-country rules through GOV.UK driving abroad ↗, including the current document, insurance, equipment and permission requirements that apply to the actual vehicle.
People + pet documentsUse current official guidance for GHIC / EHIC ↗ and taking a pet abroad ↗. Dates entered here are reminders, not a legal validity decision.
Planning aid / physical evidence controlsA green passport means the entries and connected calculators have no declared blocker. It cannot inspect documents, tyres, axle loads, bookings or policy wording. Verify the real evidence and current official rules before departure.