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Complete the factory prep package on your 2021 or newer Freightliner chassis motorhome so you can flat tow your vehicle with the Air Force One supplemental braking system. Includes all needed components and the convenient wireless Coachlink monitor.
Features:
Specs:
The Demco Air Force One offers truly proportional braking for the safest and most comfortable flat towing experience. Proportional braking means that when you apply the brakes in your RV, the braking system will engage the brakes of your toad (towed vehicle) at the same time and with the same intensity. Whether it's a gradual slow down to a red light or a sudden stop in an emergency, your toad and RV will brake together.
To achieve this, the Air Force One ties directly into your motorhome's air brakes and uses the same air pressure that results from you pressing the brake pedal in your coach to pull down the brake pedal in your toad. The result is uniform, real-time braking that exactly mirrors your RV.
To deliver the pressurized air needed to activate your toad's brakes, the coach air connection assembly taps directly into your RV's air brake lines.
A pressure protection valve collects air from your RV's supply air line and stores it in an air reservoir tank so that it's ready to use when you need it. This 1-way check valve ensures that your RV's air lines maintain consistent pressure so that your motorhome's brakes will not be affected by the Air Force One. It meets Federal Motor Vehicle Safety Standard (FMVSS) guidelines requiring that supplemental braking systems use a separate air supply and activation relay valve.
On the other side of the air tank, the service relay valve taps into the coach's metered air line and the delivery relay valve connects to the quick-disconnect air valve on the back of the motorhome. All of the above components will come factory-installed on your 2021 and newer Freightliner coach with BrakeSync.
When you press the brake pedal in your RV, the same pressure that is sent to the brakes is sent to the air connection assembly through the service relay valve. The delivery relay valve then sends the pressurized air to the operating unit via the coiled jumper hose connecting the RV and toad. The main operating unit, mounted under the hood of the toad, receives the air from the coach and sends it to the actuating cylinder that attaches to your vehicle's brake pedal. The cylinder will pull the pedal down and apply the brakes.
With this system, the brakes are applied in the toad at the same time, with the same amount of pressure as in the motorhome. This is what makes it truly proportional.
When you're driving, your vehicle uses vacuum pressure to create the force needed to bring the car to a stop. On most vehicles, this vacuum-assist function does not work when the engine is off. As a result, a lot of supplemental braking systems have to use an excessive amount of pressure to brake the toad.
The Air Force One, on the other hand, reactivates your car's vacuum-assist function by tying into its vacuum line and using the air pressure from the RV to create the needed vacuum. This way your car will brake evenly and naturally as it's being towed, so there's less risk of damage.
The Air Force One comes in 3 main pieces: the coach air connection assembly, the operating unit, and the actuating cylinder. Your 2021 or newer Freightliner chassis motorhome with BrakeSync comes with the coach air connection assembly pre-installed, so half of your installation is already taken care of.
The operating unit will typically install under your car's hood. It's designed with a low profile so you can easily find somewhere to put it. Once the unit's mounted, you'll connect the air lines and splice the wires to the breakaway switch, which you'll need to install on the front of your toad. The unit connects to the coach air assembly using a coiled air hose, also called a jumper; you'll plug it into the quick-connects at the same time as you hook up your tow bar. The jumper included in this kit is Brake Sync-specific.
The final piece is the actuating cylinder, the part that actually presses the brake pedal down. It will mount permanently to the arm of the brake pedal and anchor to the firewall. Though it is permanent, it will not interfere with everyday driving. In most vehicles, it is tucked up where you can't even see it.
It connects to the operating unit via an air hose you'll need to run through the firewall. In most cases, you can cut a slit in the hood release cable grommet to pass it through. Either way, you shouldn't have to do any drilling to get the air line hooked up.
Included in this kit is the wireless Coachlink for safety and peace of mind. This monitor, sitting on the dashboard of the RV, will light up and beep whenever your toad is actively braking. This will give you a simple and convenient way to keep tabs on when the system is working properly or if something goes wrong.
Most supplemental braking systems have a method of letting you know you when they activate, but not all of them are checking if the toad is actually braking. There could be an error that causes the system to activate without actually applying the toad's brakes. Or your brake pedal might be continuously depressed when they shouldn't be, but you won't know it until the damage is already done. This monitor, however, connects directly to a reed switch on the actuator so it only lights up when the pedal is depressed.
The Air Force One also comes with a breakaway system. The breakaway system ensures that your car will come safely to a stop if it accidentally detaches from the RV while you are towing. A switch mounts to the front of the towed vehicle. This switch - which wires to the operating unit - includes a pin that connects to your RV's hitch receiver with a breakaway cable. If the car separates, the cable pulls the pin from the switch, triggering the system. A reserve air supply stored in the operating unit will apply your towed car's brakes. This system also has total coach protection built in: if there is separation, the motorhome's air supply gets sealed off, so its brakes will continue to function as normal.
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.
Average Customer Rating: 4.8 out of 5 stars (408 Customer Reviews)
Complete the factory prep package on your 2021 or newer Freightliner chassis motorhome so you can flat tow your vehicle with the Air Force One supplemental braking system. Includes all needed components and the convenient wireless Coachlink monitor.Everything went extremely well after talking to DEMCO an ordering a Demco Vacuum Tee Fitting for Factory Brake Booster Sensor Port Item # DM6257.
Great product! Install was easy for me.
Love the Air Force One. After professional installation, it's simple to and quick hook up the toad. The bluetooth display in the rig cockpit clearly indicates when toad's brakes are engaged. In the year since it was installed, we've used it over 10,000 miles with no problems.
After a year of use, the Air Force system is still working perfectly. Have used it to tow a Jeep Grand Cherokee for about 13k miles so far.
I have purchased quite a few items from etrailer and they always deliver. They are there to assist if needed and deliveries exceed expectation.
Best tow bar system ever owned! Very easy to operate quick release towbar. Plug in coach air can’t be much easier for confident proportional braking towing my Ford F150 Raptor.
When I ordered this kit I assumed the Super C Freightliner was included in this group however, after many hours researching and posting on FB Entegra Super C board I learned this Freightliner chassis does not come with BrakeSync installed. Luckily I made the last minute purchase of the coach side air kit with expedited shipping so I have all the required components for the install appointment just days away.
etrailer should change the info on this kit to state it is only the Class A freightliner chassis that have the coach pre-installed. Alternately, provide guidance on how to confirm the purchaser's RV is equipped or not.
This caused a great deal of stress and frustration trying to confirm I had everything needed. In addition, there are not many firms who will install this for liability reasons. Even the local freightliner dealer would not touch it to install the coach side system.
I could have installed it myself if I had more time but had to find someone who could do it for us so it got done within our short 3 week timeline.
Very knowledgeable about their products and answered all my questions. Very fast shipping and no problems with a return when I ordered the wrong part. Very satisfied
Excellent product, money well spent.
ETrailer had the parts and they arrived sooner than I expected. Thank you!
Great service
I this is a replacement for my new 2023 Jeep Rubicon. I am impressed with the brake notification unit for my motor coach. Nice touch!
An excellent and simple system if you have Brake Sync on your Freightliner or Spartan. The staff was extremely helpful, especially Hannah.
This is not the first time I have worked with e trailer. They have not let me down yet.
Overall a great system, there are some intricacies to the install as it pertains to old instructions with LED light in the TOAD vs. CoachLink Wireless and also the 3 wire reed switch vs. the newer 2 wire one. But using the provided written instructions along with YouTube videos you can figure it out. My other challenge was my Jeep is a 392 model and thus the battery and fuse box are in swapped locations, as well as a different VAC line layout, but again you can figure it out…just takes some time to study and trace the routing. My only real complaint was ordering, I was quoted the wrong system for my RV (Stay and Play) vs. AF1 since I DO have air brakes. etrailer was helpful in getting the return process but wants to charge me the shipping and possibly restock fee, I am working with them on this and hope to get a good resolution.
The Air Force one was not an easy install for me because I’m old and I don’t get around like I used to but it was not impossible. However, in my opinion, it is the best supplemental braking system for flat towing. The best part about it is my Allegro Bus came with the system already installed on the coach and once you install it on your towed vehicle you don’t have to deal with any of that to get on the road. If it takes me more than ten minutes to hook everything up and get in the coach ready to drive away then I've done something wrong.
Installation was easy, compact and out of the way. Had a little problem finding controller location due to clearance. Ended up using velcro on top of the fuse box to hold the controller in place.
I have been using this new system for a week now, traveling in the USA. What I don’t know is if it’s actually baking because I feel like it’s not. The brake lights go on and the pedal moves but I don’t know if it’s moving enough. There’s no way to know how much my jeep is actually braking when I hit the motor home brakes. If there’s a way to test it other than having the brake line connected with everything else off, step on the motor home brakes while someone is in the jeep with it in gear to see if it stops. Seems like an awkward way to test it.
Installed the Air Force One as directed. Install was straight forward and fairly easy on both the Motorhome and F150. Issue is the relay valve that attached to the metered air line failed while testing the install. Brakes on the truck locked up and would not release. I called Demco who were vey helpful, but they are still waiting on replacement relay valves from their supplier. It’s been almost three weeks. Luckily it did not happen on the road.
Towing a 2020 F250SD with powerstroke. The Blue Ox Patriot 3 just would not press the petal enough. This applies the breaks well. Had to mount the box behind grill due to no room under hood. Used some copper wire to make sure it stayed in place. Had to cut a bit of the plastic cover over radiator. One thing did that was a little off the instructions is I did not run power into cab with air hose. I took power off my charging coach-> Toad charging circuit because it was under the bumper. For the reed switch I ran a wire to passenger side fuse box and used a fuse tap. Every thing else was pretty easy. I am pretty handy and have all tools needed. I installed in about 6 hr.
We have put over 10k miles on this system. Everything has worked perfectly. A job very well done by Etrailer. Thank you!!
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Brady
12/8/2024
It works so well! Never any issues.