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When you press the brakes in your RV, you want your towed car to respond instantly and evenly. The Demco Air Force One uses the same air pressure from your RV’s brake line to apply your toad’s brakes with matching force and timing. It reacts in real time—not from inertia—so you won’t get false braking on dips or bumps. This setup meets FMVSS safety guidelines for air-braked RVs and keeps your stops smooth, straight, and predictable across every mile.
If the unthinkable happens and the towed vehicle separates, the integrated breakaway switch activates the system’s reserve air supply and brings it to a controlled stop. The Air Force One also seals off the motorhome’s air supply in a breakaway, keeping your coach brakes fully functional. It’s a full-circle safeguard that gives confidence every time you roll out.
Most braking systems push hard on the pedal because the engine’s vacuum boost isn’t active while towing. The Air Force One solves that by reactivating your vehicle’s vacuum-assist system through the same air pressure used for braking. The result is natural, even braking with less strain on the pedal and less wear on your car’s components.
An LED indicator light mounts in the towed car, showing exactly when the brakes are applied. It connects to a reed switch on the actuator, so you’re seeing real pedal movement—not just activation signals. The light is visible through the RV’s backup camera, or you can add the wireless Coachlink (SM99945, sold separately) for an easy in-cab view.
Once installed, the Air Force One is always ready. Its low-profile components mount permanently under your hood and along the RV’s frame, staying out of sight and out of the way. Just connect the coiled air hose and the breakaway cable, and the system automatically powers on. No setup, no bulky boxes—just plug in and go.
Flat towing can be a much more convenient way to take your car RVing with you than using a trailer or a tow dolly. It'll save you storage space both at home and at the campsite, and it takes less time and hassle to hook up.
To flat tow your vehicle, there are 5 basic components you're going to need: a tow bar, a base plate kit, a safety cable set, tow bar wiring, and a flat tow braking system.
| For the RV | Between the RV and Towed Car | For the Towed Car |
|---|---|---|
| Hitch | Tow bar | Base plate |
| Wiring plug | Safety cables | Braking system |
| Wiring adapter cord | Wiring kit/diodes |
The custom-fit base plate installs on the frame of your toad so you can connect the car to your RV with a tow bar. Hook up safety cables between the vehicles to ensure that the toad does not separate from the motorhome if the tow bar becomes detached. Tow bar wiring syncs your vehicle's signal lights with your motorhome's tail lights, as required by law in most states. Finally, the flat tow braking system - also required in most states - activates the brakes in the toad when you hit the brakes in the RV, making for smoother, safer braking, and preventing wear on your motorhome.
Customer Satisfaction Score:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews
Kate F.
9/17/2025
can definitely see why you’d want to install this one again! It’s also our installers’ favorite system to work with. I’m sure it gives you peace of mind knowing your wife, as a traveling nurse, has the best products to keep her flat towing safe and reliable =)
Darryl W.
7/28/2021
5.0 Product is working great! No issues. Minor adjustment to brake cable after a year. It took 5 mins.
Bruce P.
12/14/2021
We have used our AFO for over 12,000 miles towing a 2018 Chevrolet Colorado. It seems to be working fine but is really hard to know for sure. It is difficult to see the LED light strip in the camera during bright daylight. When I installed the AFO, etrailer was very helpful even returning my call on a Sunday. I also added a plastic stub next to the connectors on both the RV and toad that very conveniently stores the plastic cover when the brakes are not connected so they do not get lost. I tried to contact etrailer with my simple improvement but no one seemed interested.
Fred
3/24/2025
It has worked great. We tow a 24 Jeep Rubicon behind an 03 Beaver. I installed the unit myself. Had to be creative on location to mount controller but had no problem getting it installed. I would recommend this unit to everyone using air brakes.
Kate F.
3/24/2025
Jay
1/7/2025
I love being able to unhook the car and get in and go with out fumbling around with moving a break system in the drivers seat and unhooking wires. I only have the one car to tow so I would not need to move it to another car. When slowing down or coming to a stop I cant even tell the car is back there. I cant imagine not having a breaking system let alone one I had to move everytime I got in the car
Ron
3/19/2025
Not well. Just took my first long trip. Batterydrained to the point it wouldnt recharge. Had to buy new one. I had line from RV to towed vehicle, but it still discharged.
Thomas
11/6/2024
Love the Air Force One system. You install it and you’re done. Very effective. Couldn’t be happier.
Ken G.
10/23/2017
After using the items I reviewed, about 6,000 miles, I am more than satisfied. The towing setup is easy to hook up and unhook and the braking system is second to none. All of the installation was completed by myself and a friend, both of us have a technical background him more than me and we found the videos of the installation extremely helpful.Thank you for following up and providing excellent products as well as support services.
Joe T.
5/17/2020
After a year, we are still happy with the AF One. We had one issue where it didn’t work and it turned out we let a little grime get into the air fitting. Took some time to figure it out but we cleaned with compressed air and the problem went away. Lessen learned it to keep rubber covers on the air fittings when not in use.
Randal
8/17/2023
Questionable? This year it Felt like the truck in tow was pushing me during mid to heavy braking. Pulled over a couple of times to verify pedal was being pushed down. Verified vacuum lines from your system to the brake vacuum line was tight. It acted like the vacuum assist was not working. I need to find time to ask you about this problem.
Katrina B.
9/18/2023
Randal
10/23/2024
1st year it worked great. 2nd year felt like I was getting pushed when braking. 3 year I was either getting used to the pushing feeling or it started working. Checked all the air lines... No leaks. Vent seems to be blowing out more air? Before next year think I will checkadj back brake shoes. Maybe that is what is causing the push feeling from my Dodge Dakota.
Jay
7/23/2022
Perfect, way better that the portable device
Robert
3/8/2022
After one year and more than 10k miles have not had a single problem with the Air Force One braking system on my 2019 Ford Ranger.
Do you have a question about this Flat Tow Brake System?
Condition: Badly Dinged
Notes: The control box was scratched, dented, and dinged. Otherwise, new and unused. All hardware is included.
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Gwendolyn Y.
5/4/2026
That's a really smart idea to have an extra hose. I have heard a few cases of them growing legs and walking off magically at a pit stop.