Earlier this week, we received this letter from reader Bob, which includes his description and design for his “perfect” trailer. Please read through Bob’s design, then leave your ideas, suggestions, advice, critiques, etc., in the comments below. Bob will be thrilled to hear from you. Thank you!
Here’s what Bob wrote:
“Hi, I’ve been sending this out to trailer manufacturers, with some good responses, but no actual trailer has been produced. If it makes sense to you, please publish it in your magazine and request that folks submit ideas to improve it. I’d like this RV to remain small and simple, and with the full set of features. It should be fun to see the comments it inspires.” —Bob in Colorado

A suggestion for trailer manufacturers from a long-time camper
Singles or couples looking for a complete set of features, good construction, reliability, and operational simplicity in a small, light towing package should be interested in this design— there’s nothing out there quite like it. After decades of camping in larger but less competent trailers, I dreamed this up on my daily walks.
Floorplan and concept
With twin beds, one can get up at night without crawling over the other. The bathroom is complete and comfortable. Multitasking minimizes camper length and weight. Simplification makes for ease of use, lower cost, and reliability. Construction emphasis: long-term durability at reasonable cost.
Key features:
• A dry bath plus a dressing room, convertible twin-to-queen bed, a large fridge, pantry, and dinette in a very small trailer.
• Swing out the braced seatback, drop in a back cushion to create the dinette’s second seat.
• Tilt up the extension over the other bed for kitchen prep space: there’s more on the dinette.
• Excellent off-grid capabilities.
• The short, light, narrow body and twin axles provide safe, easy towing and rear visibility.
Construction
• Dual axles for blowout protection. A blowout is the most common (and among the worst) trailer accidents; it’s a real and nagging concern on a hot August highway. Two extra wheels solve it and delete the spare tire.
• Mount the wheels partially outside the trailer box to increase interior volume.
• All materials: composite or aluminum—no water-absorbers.
• Best is an all-welded aluminum frame and roof, with closed-cell insulation.
• Include a fiberglass roof skin with a lifetime seal around the air conditioner’s cutout. (No sealant goo to check regularly and repair. This is the only roof cutout.)
A dry bath in a small camper is wonderful:
• Design the trailer for a full-ceiling 6’3” shower height. No dome to penetrate the roof.
• The shower door swings out and stops at the other wall to create a changing room.
• Include a water-saver “recirc until hot” system and a low-flow shower head.
• Drop-down sink and a medicine chest above the toilet.
• Fit 50 gallons of fresh water (two connected tanks above/forward of the axles), 30-gal grey, and either a 20-gal black tank or a cassette toilet. Fresh water is a boondocker’s gold.
• Tanks and dump valves inside the enclosed underbelly.
• Vent the black tank out the back wall up high to avoid a roof penetration.
• Use a quiet, variable-speed water pump with a flexible hose section at the outlet to quiet the pulsing.
• Build in a campground (“city water”) pressure controller and replaceable filter. Set it permanently to 20PSI to protect the plumbing.
• Slope all pipes toward a central drain for quick winterization without pumping antifreeze. Simple winterizing: Drain for a few minutes, pour a little antifreeze into the traps. A plus: no antifreeze taste on the next trip.
• Absolute requirement: A single-point dump hose connection. No one wants to wrangle a dripping hose from the black outlet to the grey.
Optimize/simplify everything:
• Install a propane furnace/water heater combo under the bed adjacent to the kitchenette. Send some furnace heat to the underbelly—no tank heat pads needed.
• Spec a very quiet, large, well-insulated 48V DC fridge with a separate freezer door.
• Narrow, two-burner space-saver propane cooktop.
• Two 20 lb. propane tanks with auto-switch.
• Convection microwave above the kitchenette.
• Skip the roof rack—it interferes with solar and adds weight up high. We’ll put a carrier on our tow vehicle if needed.
• Skip the TV—we have tablets. (Include a wall-mounting plate and connections for the die-hards.)
• Simplify the electrical system: An outdoor and a hall light switch just inside the door; individual switches at the other lights; a simple thermostat; an accurate, simple tank level monitor; a Bluetooth cellphone link to the charge controller. We don’t have glitzy multi-screen panels running our homes, but we somehow manage.
Pre-solve the energy problems for us:
• Install the maximum area of thin and light flexible solar panels, with the A/C placed to maximize panel space. Mount the panels without roof penetrations (no goo): run the wires over the edge and through a rear wall port.
• Lithium batteries standard, please: ~7.5 kWh; two 48VDC banks under the driver-side bed.
• Install an MPPT solar controller with freezing-temperature charging prevention. This keeps the batteries safely topped up during winter storage, ready to roll.
• Include faulty-circuit warning LEDs in the campground electric cord.
• Use a 48VDC variable-speed-compressor low-profile air conditioner. They’re more energy-efficient and quieter than an AC A/C (no compressor-start surge). Use a white cover on the roof unit to reduce heat load and long-term heat damage.
• Spec a 3 kW 48VDC-to-110VAC inverter.
• Rear-wall-mounted and quiet max-air variable-speed exhaust fan at the toilet, with a wall switch plus a handheld thermostatic control. Save the roof space for solar.
• Allow space above the bathroom door to pull warm air from the camper.
• Note: With a 48DC system, all heavy DC wiring can be inexpensive, easily installed 12-gauge.
Amenities:
• The camp-side bed cushion slides to the left to create a queen when snuggling is desired.
• Install dual-pane acrylic tilt-open windows over the dinette and kitchen, plus a simple, shaded window in the door. No need for windows in the lighted bathrooms. All shades pull up (please) for privacy with ventilation; bug screens pull down.
• Include a full-length camp-side wind-protected electric awning. (No need for a little over-door awning – we won’t be sitting there.)
• Include tire pressure monitoring and a wide-angle rearview RF camera system.
• Light colors inside and out for an open feel and reduced summer heat load.
No options! This thing is perfect. Build it, and we will come.
You might also consider:
• Including a small, propane-powered, quiet, and light $400 2.5kW (actual) portable generator. Store with its long hose in a secure/discreet box behind the propane tanks. It can be removed and run distant from the camper, if needed. Include lockable screw-in ground mount theft prevention.
• Uniting with other companies to talk a manufacturer into offering a 48VDC microwave. Microwaves convert AC to DC before producing the microwave energy; a DC-powered microwave should be less expensive in quantity.
• Including a one-year paid subscription to a Visible (Verizon system) cell device. It includes unlimited 5G data plus Canada and Mexico service. It’s $500/yr., and they’ll probably discount for a manufacturer. Mount the antenna high on the rear wall—no roof penetration. We’ve used Visible for a decade: they’re excellent. (Wire in a simple connector for Starlink—we can order that, if needed.)
• Offering two years of certified mobile tech contact-assistance warranty service U.S.-wide. We’ll call you for help, you determine a tech’s availability, authorize and provide their nearby number, and we call them and work out the details. These folks can fix a lot of problems quicker, better, cheaper, and happier than the usual limp back to the dealer and wait for months. We’ll report back on their competence; you’ll get info on trailer problems to reduce future calls.
—Bob
What do you think? Leave your ideas, suggestions, advice, critiques, etc., in the comments below. Also, if you would like to forward this to your favorite RV manufacturer, Bob would appreciate it.
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