Truck Trial Competition 22.11.25

[paave]

We had a Truck Trial event this weekend, and here's my video report:

 

00:15 Suzuki Jimny

04:42 Chevrolet K5 Blazer 1981

10:43 Dodge Charger Offroad

14:44 Jeep Cherokee XJ

19:33 Suzuki Jimny SJ

22:40 Land Rover Defender 90

27:17 Redneck (my truck)

29:12 Jeep Grand Cherokee

32:55 Hummer HX Concept

Enjoy!

[gyenesvi]

Very nice event, thanks for sharing! What were the rules? What scale and what electronics were allowed?

I like the track, what is it made of? It seems realistic and hard enough, despite being artificial.

[keymaker]

I like the looks of vehicles and track itself, but having open diffs in off-road machines? C'mon....

[paave]

18 minutes ago, gyenesvi said:

Very nice event, thanks for sharing!

Thanks!

24 minutes ago, gyenesvi said:

What were the rules? What scale and what electronics were allowed?

Google translate:

Model Rules 1. Competition Description: - The race involves racing LEGO models along a course consisting of various obstacles.

- The winner is the participant whose time to complete the course, taking into account all bonuses and penalties, is the fastest.

2. Completing the Course:

- The participant's objective is to drive along a prepared course from the start, successively through pre-placed gates, to the finish.

- The model can drive through the gates either backwards or forwards. Gates can only be driven through in one direction (passing through and backing out is not permitted). Missing a gate is prohibited. Missing a gate results in a 10% penalty to the overall time.
- Touching the gate is permitted, but breaking the gate results in a 5% penalty to the overall time.
- If your model flips over and doesn't return to its original position, a 5% penalty to the overall time is imposed.
- Moving the model (up to 20 cm) results in a 10% penalty to the overall time. The model may only be moved with the judge's permission.

- Model repairs are permitted; the stopwatch does not stop during this time.

- The total time for completing the course is limited and will be announced immediately before the race. Failure to complete the course in time will result in a technical retirement.
3. Model Layout:

3.1. General Requirements. - The participant's model must be a light-duty SUV. Scale models and original models without a real prototype are permitted.

- The wheel arrangement of the models is 4x4 (if the real prototype has 6 wheels, then 6x6). The body type must be the same as that of a road-going car. The model must have a cabin with at least two seats (driver and passenger). A model engine is optional; if present, it must be located under the hood.

3.2. Model Exterior.

- There must be space for the pilot, steering wheel, and instrument panel. Doors (driver and passenger) are required. The model must have headlights and taillights, bumpers, and a windshield frame. Wheels must be in arches. All body parts must be free of holes; tubular bodies are prohibited.
- Wheels measuring 62-68 mm may extend beyond the arches no more than 1.5 mm, and wheels measuring 75-81 mm may extend no more than 2.5 mm.
- If you are building a real car, your model must be recognizable. A roofless model is permitted only if the real car does not have a roof or if the roof can be removed. For models without a prototype, a roof is required.

3.3. Suspension, Transmission, and Steering.

- Suspension is mandatory. Any type except swing axles. - All-wheel drive only. - Steering is permitted only through knuckles. Steering wheels are front only (fully-steering chassis is permitted for models based on a real prototype with this feature). - A gearbox is optional. Manual transmission shifting is permitted only before the start of the race. - The maximum model width for 62-68mm wheels is 21 studs, for 75-81mm wheels, 23 studs at the wheel edges.
3.4. Wheels and Wheel Arrangements:

- Wheel diameters of 62-68mm are permitted for stock or slightly lifted cars. 81mm wheels are permitted for heavily lifted cars.
- Any tires that fit on LEGO rims without modification are permitted. Solid wheels (all-plastic) are prohibited.
3.5. Power Supplies, Controls, and Motors:
- Power supplies and control units from LEGO, CaDa, BuWizz, and others are permitted (except for replicas of LEGO elements). The use of 3S LiPo batteries and homemade battery packs is permitted, provided their output voltage does not exceed 9 volts. No more than one power supply per model (C+, Buwizz, or PF battery pack).
- Any LEGO motors (except buggy motors), no more than two of any kind per drive (for driving the model). All drive motors must be attached to the model frame (motors on suspension elements are prohibited, except for the steering motor).
- Direct compatibility with LEGO motors is a requirement for using homemade control devices (motors must be connected to your control system via standard LEGO contacts). - Only genuine LEGO motors are permitted. LEGO-branded motors are PROHIBITED.
3.6. Bonuses and penalties for model design features:
- All bonuses and penalties are cumulative.
- Using units with a built-in battery: 15% penalty to the total running time.
- Using RC tires: 5% penalty to the total running time.
- A working and properly rotating steering wheel inside the model: 5% bonus to the total running time. - Engine mockups – 5% bonus to the overall time for each. The number of cylinders, engine type (inline or V-shaped), and its placement on the model must match the real prototype.
- Open differential (center, cross-axle, remotely lockable) – 10% bonus for each.
- Wheels 75-81mm – 10% penalty to the overall time.

4. Prohibited:
- Using parts from similar construction kits.
- Gluing parts together, including the use of stickers on the frame.
5. Rights of the organizers: At the discretion of the organizers, a participant may be disqualified from the race.

25 minutes ago, gyenesvi said:

I like the track, what is it made of? It seems realistic and hard enough, despite being artificial.

I don't remember exactly, some kind of polystyrene, foam plastic or something like that. It wasn't made by me