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How to Overcome the Obstacle in Offroad?

Our topic today is “How to Overcome the Obstacle with an Off Road Vehicle? “

We will look for answers to the questions of what to do when crossing rough terrain with your 4×4 off road vehicle or on short but steep and high ascents, what we can do, what are the situations in which we cannot get out, what are the dangers.

First of all, it is assumed that the height difference between the planes we are on and the planes we are trying to climb is not so much that the corner of the ramp or the obstacle we are trying to overcome is not enough to suspend the vehicle from the chassis when the rear wheels of the vehicle rest on the ramp. If the chassis touches the ramp to be climbed, it will be possible to climb to the extent permitted by the simultaneous articulation capability of the tires on the same axle.

Let’s examine how climbing is possible in a basic sense.

Dear off-road and nature enthusiast friends, we are together with another sharing of our Off-road Basic Technical Information article series. The information I will provide; These are concentrated, technical-based, lived experiences, and some of the details that will find a name in the off-road literature for the first time. With the hope that it will benefit the readers.

If more than one tire simultaneously leans against an obstacle, it may not be possible to continue driving, depending on the geometry of the obstacle and the grip of the tires. Therefore, it must be ensured that more than one tire does not hit an obstacle simultaneously. These; It can be two front tires, two rear tires, or one front and one rear tire. If more than two tires are leaning against the obstacle, the transition will become more difficult.

Even if the tires resist simultaneous obstacles, it can be reached and passed at a certain speed.

However, you cannot quickly cross obstacles that exceed the height corresponding to the positions of the tire’s angle with the vertical exceeding 75 degrees.

Since they stand like a flat wall in front of the tire, when we make a move to come and pass quickly, it will create a direct impact to the vehicle and the vehicle will be exposed to the same situation as in a normal collision accident and it may break or there may be permanent bending and twisting of the front wheels.

In this case, the larger the tire, the more successful the transition will be.

I recommend you to read our article about the effects of tire growth on offroad driving.

Lastik Büyütme ve Offroad Sürüşüne Etkileri Nelerdir ?

If the tires have managed to climb the obstacle in front of them, they will likely be in a typical crossover situation. In this case, the vehicle’s articulation capability and/or the availability of differential locks will be key factors in continuing driving.

In order to better understand the effects of articulation ability, I would recommend you to read our article on the effects of articulation ability on offroad ability.

What is the effect of articulation on handling? What is useful articulation?

Artikülasyon ‘un yol tutuşa etkisi nedir? Faydalı artikülasyon nedir ?

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Similarly, in order to better understand the effects of differential locks on road holding, I recommend you to read our article in which the differential is explained in detail.

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4×4 Off-Road Araçlar da Diferansiyel ne işe yarar ? Diferansiyelin Büyük Önemi Nedir ?

Because obstacle-crossing or a short steep climb are very similar in essence, you might consider our interpretations of the steep climb similarly when surmounting mixed obstacles.

If we approach the obstacle in the P1A position, if the obstacle is too steep, the obstacle will stand like a high wedge in front of the two front wheels and it may not be possible to move the vehicle up. Even if the front wheels are able to overcome this obstacle with the rotational motion and the thrust of the rear wheels, this time in the P3A position, the rear wheels will stick to the ramp like chocks.

The correct approach position is therefore P1B, P2B and P3B, where the tires cross the obstacle one by one. It would be more accurate to enter at a slight angle and let the wheels come out one by one. However, this position will also require the vehicle to have articulation capability for successful ascent. It will be a very enjoyable and successful experience for a vehicle with high articulation capability and differential locks.

The dangerous situation is P1C, P2C and P3C. If we give the angle a little too much, if we press the gas straight, and if there is enough ramp height, we can overturn the vehicle before we reach the P3C position.

In this and similar positions, the risk of tipping over is examined, “Where is the balance in off-road and what is its importance ?” I recommend you to read our article.

Denge off-road‘un neresindedir ? Off- Road Araçlar Denge ve önemi nedir ?

Now let’s move on to the other successful exit parameter. In order to make this output, the middle lock must be present. In position 2, the rear wheels must be on a stable surface. In position 3, the front wheels must be on a roadworthy surface. If you cannot meet these conditions, you are tiring the vehicle for nothing.

In the attempt to exit the stream bed seen in the photo, it would be a pointless behavior to push this track further, as the rear wheels were buried in the bottom of the stream bed and road holding became impossible. With more qualified tires, even on that ground, road grip can be achieved and exit can be achieved. However, the result is still tied in position 2 whether the rear tires hold the road or not. Since the road holding could not be provided under the conditions we were in, we acted prudently and did not continue the struggle despite all the encouragements (fillings) of our friends who participated in our trip.

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I recommend watching the video of the climbing attempt, where the photo was taken.

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Conclusion and Suggestions:

Do not be tempted by the video footage of vehicles equipped with over-modified, large XT tires and coilover shock absorbers on difficult tracks. Know the tool you have, give yourself time about what you can do, what you can’t do, what you should not do, and proceed by gradually increasing the dosage each time. Just like every activity requires training, offroad is an activity that requires training. Do a lot of training, even having these trainings on the same track will make positive contributions to you. After years of using all the mechanical possibilities of my vehicle on a short track with loose surfaces, longitudinal slits, quite steep and with a “slit” on one side, one day, absentmindedly, I walked a little fast in 4×2 mode. There’s no end to the experience you’ll get, it’s just that you learn more and more new information at the beginning, and as time goes on, what you learn will never end as you learn more. Try to do every ride with a certain look and mind. Be sure to examine the place you are going to pass, where should I drive the tire, wherever I hit the differential watermelon, where the ground provides the best traction for the tire, where do I put myself in the least danger, on which track should I run the car the least, at what speed should I make this transition, my vehicle’s traction system and articulation Always keep in mind questions such as whether its ability is suitable for this transition. Driving with these questions will provide you with a vision in which you can open your own track after a while. The offroad community is huge and continues to grow day by day. We have come to see the majestic cars, which we have rarely seen in the past years, more often. There is no such thing as the best offroad vehicle, our goal should be to equip the vehicle we have with the right equipment and get the highest efficiency from it.

Let me put it in the last word, do not buy a vehicle without a middle lock, if possible, choose a vehicle that has a minimum rear lock or can be installed without much expense.

Normally ; Keep in mind that the middle lock + rear lock + MT Tire combination will outperform the middle lock + XT Tire.

Best Regards,

25/03/2020 Süleyman ATILGAN Contact: Facebook & Instagram

You can view other articles professionally prepared by Süleyman Atılgan, which include off-road basic techniques and off-road driving advice, below.