How To Drive On Sand
We are not the types to seek out sandy trails when off-roading. The shifting terrain is easy to get stuck in and a headache to get out. Yet, there are vistas, campsites, and other gems only reachable through a patch of troublesome sand. So, in the course of our wanderings, we have had our share of sandy situations and have learned a few tips and tricks when driving on sand.
Features of a Desirable Rig
To begin, a journey across sand is either easier or more difficult based on the rig we are driving. Think about the dune buggy. It is designed with one use in mind: to cover these very sandy situations. It is incredibly light weight with massive, knobby tires. The design maximizes traction on the loose ground and minimizes inertia that could lead to our tires digging a hole in the sand rather than moving forward on the sand.
We are talking about trucks, however. Trucks, and other vehicles are built to meet rigorous road, efficiency, and safety standards. The steal frames and enclosed cabs that makes these rigs suitable for highways conditions also make the rigs less suitable for shifting sand. Even so, there are still characteristics in a standard vehicle that can make them better suited for beach driving:
- Light weight
- Knobby tires
- 4-wheel drive
Optimize Your Current Rig
Having addressed what makes and ideal rig, let’s talk about the realities of making due with the vehicle you have. Unless you collect multiple vehicles, it’s unlikely that you have a specialty rig for driving over sand. Fortunately there are a few quick fixes we can do improve your rig’s performance on sand.
Air down your tires
High pressure tires are optimal for highway driving. They maximize gas efficiency by minimizing friction. When you are on the sand, however, that friction is very desirable. Airing down your tires allows you to maximize your tread and also minimize any risk of puncture from the occasional sharp rock. Of course, how much you should air down depends on your tires, rims, rig, and load. We have encountered individuals who have aired their tires down anywhere between 40 and 15 psi.
Granted, it’s worth remembering that whatever air is released while on the sand will have to be replaced soon after. For those traveling with air-compressors, this really is just a matter of time. For us, without an air compressor, it means we won’t be able to air up until we reach our next gas station. So, we are very conservative and only air down to 50 psi.
Keep Your Rig Light
If you are anticipating a sandy adventure, the lighter your rig is, the less pressure and inertia your tires will be fighting against. So, it pays to not carry more weight than is needed. Granted, we travel with everything on the truck, so there isn’t really an opportunity for us to lighten the load. So, we rely on other practicalities.
Driving Techniques In Sand
Of course, even the best rig can get stuck in sand if you aren’t careful. So it’s still important to be aware of your environment and be technically aware of your route before you are surprised by an impassible strip of sand.
Avoid Deep Sand
Avoid deep sand when possible. The more the sand has been loosened and turned over onto a deep, soft depression, the easier it will be for your tires to dig into the ground and become struck.
Keep A Steady Speed
We do a lot of starting and stopping while in sand to get the lay of the land. But when the sand is deep, sometimes, it’s only momentum that can propel you through those stretches. At such a time, build up momentum where the ground is more solid and take the deep sand as directly as possible to minimize any turns were you can loose momentum.
Avoid Steep Inclines
The steeper the incline, the more we have to fight the sand to gain ground. Even normally easy slopes can be a problem when sand is in play. When we have to gain elevation, we prioritize routes that draw out the process over a relatively long and subtle slopes. Keep in mind that a steep decline can strand you if there is no gradual incline for your return trip.
Avoid Sharp turns
This nearly stranded us in Texas. We are driving on a dirt road near a Gulf beach and don’t realize we are headed onto sand until we already roll into a deep patch. Worried that our condition will only get worse ahead, we attempt to turn around. Turning our tires for a multipoint turn to get back on the dirt road only serves to dig us progressively deeper and deeper into the sand. Fortunately, when we finally give up any attempt to turn around, we have gravity on our side. We roll strait down to the waterline where the sand is firmer, and follow the shore until we can find an easier exit.
Scoute Out Your Route
On one of our trips, we drive to our camp site with relatively little trouble. Yet, when the time comes to leave the next day, we find other cars are parked along the route we had taken to get in place. To leave, we need to take a different, and much more sandy route. Knowing that we already have a lot going against us—deep sand and an incline—we decide that our best bet is to walk the proposed route first and check for any dangerous points. We note where the sand is most solid, where we can gain momentum before tackling the deeper and looser sand. Once we agree on a route, I walk ahead to mark the route while Chris drives behind me.
In the unfortunate case where your wheels dig you into a hole, there are several options. For many, this is the point where a tow truck is called…an extra expensive tow truck. Before making that call, though, there’s a few alternate options.
Traction Boards / Matts
Your core problem with sand is traction. Your tire is trying to find a firm purchase in a shifting terrain. While the sand clearly isn’t providing the needed traction, you can introduce your own. Many overlanders will travel with a set of traction boards or matts, which can be dug under the wheels in cases of sand, mud, and snow.
While these sets are handy, many casual off-roaders don’t travel with these. But what most of us do have are floor mats. Yes, floor mats are built to be durable sources of traction for your feet and can be a handy backup for your tires as well. (Other’s have used old throw rugs and other tough materials they may have with them.) . I wouldn’t call this an alternative so much as a fallback for those occasional surprises.
Long Handled Shovel
Once you are stuck, you will likely need to dig out around the tires to introduce some traction. In such cases, a long handled shovel will make a world of difference. While there are very fancy options sold at many an overlanding outfitter, your garden variety shovel bought at a home improvement store should fit the bill.
Jack & Support
Incase you need to lift your vehicle and access your tires, it’s important to not only have a jack rated for the weight of your rig but also some form of support that can keep the jack from simply sinking into the sand. This can be as simple as a 1’x1’x3/4″ piece of plywood so long as it can spread out the weight of your rig across the sand.
In cases where you cannot rescue your self, another vehicle on firmer ground or with better traction can pull your rig out, provided that you have rope properly rated for your rig’s weight. So, be sure to have your own rope incase you need to ask for a little tow.
A Few Other Handy Tools
Digital Tire Deflator
When airing down tires, a digital tire deflator can make the process much faster and strait forward. At the moment, I sit in the driver’s seat and read out the tire pressure reported on the truck’s dash when we are deflating and inflating our tires. A digital tire deflator, however, allows for a much higher degree of accuracy.
Air compressors serve many functions in off road driving. While they make airing up after airing down much easier, they are also important for filling up a tire in case you need to patch a hole. One piece of advice we’ve definitely found is to not cheap out when it comes to an air compressor. The heavier your rig is, the more pressure you need and a quality air compressor will make all the difference.
Tire Patching Kit
Yeah, it’s just a generally good thing to have when off-roading.
Do you have any stories or advice about driving on sand? Share them in the comments!