01 What makes it unique
Aliner lists the 2020 Expedition FK at 1,850 lb dry, a GVWR of 3,500 lb and a tongue weight of 310 lb. Aliner prints no cargo carrying capacity for it, so none is given here; the federal label inside the trailer carries one.
It is 18' long. Aliner prints its tanks as 11 gal fresh.
Every number on this page was read on 7 Nov 2026 from Aliner’s 2020 Product Catalog, the maker’s own dated document for model year 2020.
How the FK differs from the other fifteen Aliner floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2020). How these ranks are worked out.
- Tongue weight, 310 lb: heaviest of sixteen; next are the Evolution 15 Twin Bed, Expedition Rear Sofa/Mattress and LG (240 lb).
- Tongue weight as a share of dry weight, 16.8%: largest of sixteen; next is the 10 (14.5%).
- Dry weight, 1,850 lb: eighth-heaviest of sixteen, between the Classic Twin Bed (1,810 lb) and the LXE (1,930 lb).
- GVWR, 3,500 lb: highest of sixteen, level with the 15, Amp and three others; next are the 10, Classic Rear Sofa/Mattress and eight others (3,000 lb).
- Length, 18 ft: longest of sixteen, level with the 15, Amp and three others; next are the Classic Rear Sofa/Mattress, Classic Twin Bed and five others (15 ft).
Next to the Classic Twin Bed (2026 page), the nearest lighter floorplan by dry weight, the FK is 40 lb heavier by dry weight, has a GVWR 500 lb higher, has a tongue weight 150 lb heavier and is 3 ft longer; the two publish the same fresh tank.
Next to the LXE (2026 page), the nearest heavier floorplan by dry weight, the FK is 80 lb lighter by dry weight, has a GVWR 500 lb higher, has a tongue weight 130 lb heavier and is 3 ft longer; the two publish the same fresh tank.
02 Full specifications
Dimensions
- Exterior length
- 18'
- Exterior height
- Not published by Aliner
- Exterior width
- 84"
- Interior height
- Not published by Aliner
Weights
- Dry / unit base weight (UVW)
- 1,850 lb
- GVWR (max loaded)
- 3,500 lb
- Net cargo / payload (CCC)
- Not published by Aliner
- Hitch / tongue weight
- 310 lb
Capacities
- Fresh water
- 11 gal
- Grey water
- Not published by Aliner
- Black water
- Not published by Aliner
Running gear
- Hitch type
- Bumper pull
- Tire size
- Not published by Aliner
Sleeping & layout
- Sleeps
- Not published by Aliner
- Closed Height (inches)
- 68"
- Tires and Wheels
- 14" Aluminum
- Weight basis (as printed)
- The catalog prints a dry weight and no cargo capacity; the dry weight is shown as the unit base weight
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (3,500 lb) and the upper loaded tongue estimate (525 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433).
03 The Aliner floorplan family
The Aliner floorplans below were added from Aliner’s 2020 Product Catalog; every Aliner floorplan on this site, every model year, is listed on the Aliner hub.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Titanium 10 | 13' | — | Profiled |
| Titanium 12 | 15' | — | Profiled |
| Expedition FK | 18' | — | Profiled |
The Aliner floorplans below were added from Aliner’s 2020 Product Catalog; every Aliner floorplan on this site, every model year, is listed on the Aliner hub.
04 Notes on this floorplan
What Aliner does not publish for the Expedition FK
Aliner prints no cargo carrying capacity, tire size, interior height, grey-tank, black-tank, sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
1,670 lb dry and 3,000 lb GVWR, against this model’s 1,850 lb and 3,500 lb.
07 Where this floorplan sits
Closest sibling: the Aliner Expedition Rear Sofa/Mattress, nearest on the published figures. It differs on 2 of the 5 fields both publish (this plan first): dry weight 1,850 lb vs 1,985 lb; hitch weight 310 lb vs 240 lb. They match on length, GVWR and fresh tank.
| Aliner plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 3,500 | 11–16 of 16 | 3,000–3,500 |
| Dry weight (lb) | 1,850 | 9 of 16 | 1,190–2,600 |
| Hitch weight (lb) | 310 | 16 of 16 | 130–310 |
| Length | 18 ft 0 in | 11–16 of 16 | 13 ft 0 in–18 ft 0 in |
| Fresh tank (gal) | 11 | 1–10 of 14 | 11–35 |
Either side of it by GVWR: Aliner Evolution LG matches it at 3,500 lb GVWR; Aliner Expedition Rear Sofa/Mattress matches it at 3,500 lb GVWR.
| Nearest Aliner siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Aliner Expedition FK | 18 ft 0 in | — | 1,850 | 3,500 | — | 310 | 11 |
| Aliner Expedition Rear Sofa/Mattress | 18 ft 0 in | — | 1,985 | 3,500 | — | 240 | 11 |
| Aliner Evolution 12 | 15 ft 0 in | — | 1,965 | 3,000 | — | 210 | 11 |
| Aliner LXE | 15 ft 0 in | — | 1,930 | 3,000 | — | 180 | 11 |
| Aliner Titanium 12 | 15 ft 0 in | — | 1,670 | 3,000 | — | 185 | 11 |
| Aliner Classic Twin Bed | 15 ft 0 in | — | 1,810 | 3,000 | — | 160 | 11 |
All 16 Aliner floorplans: Aliner line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Expedition FK | 3,500 | 1,850 | — | 18 ft 0 in |
| Clipper Camping Trailers Clipper Classic 1285SST | 3,296 | 2,840 | 6 | 19 ft 0 in |
| SylvanSport GO | 1,650 | 840 | — | — |
Against the Expedition FK: the Clipper Camping Trailers Clipper Classic 1285SST is 204 lb lighter and 1 ft longer; the SylvanSport GO is 1,850 lb lighter.
08 Common questions about the Expedition FK
How much does the Expedition FK weigh?
1,850 lb dry; 3,500 lb GVWR, the most it may weigh loaded.
What is the tongue weight of the Expedition FK?
310 lb as published, 17% of the dry weight (median across 91 camping trailers here: 11%).
What size tow vehicle does the Expedition FK need?
A tow rating of at least 3,500 lb, plus payload for the loaded tongue weight, passengers and cargo.
How long is the Expedition FK?
18' overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
6 of the 18 fields this catalogue tracks are published for the Expedition FK. Not published: cargo capacity (CCC), exterior height, interior height, grey tank, black tank, sleeps, slide count, axle count, tire specification, awning, refrigerator, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: library.rvusa.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 3 recall campaigns and 5 owner complaints (model years 2005 on) against the Aliner line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 5 complaints have been filed on this line — not enough to say what fails most often. They cover structure and suspension.
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Aliner line page.