At the beginning, I bought the Lego Technic 42020 (pictures below). It’s a small medical helicopter, with blue and white color. But I was disappointed by look and functions: rear hold can be opened but you can put nothing in the helicopter, front wheels are moving freely. Globally, the structure of the helicopter is strange and complex.
So, I decided to build my own twin-rotors helicopter, with 4 landing wheels like the Boeing CH-47 Chinook 🙂
On this small helicopter, there are synchronized rotors which can be moved via the rear axle, front wheels steers for taxiways (from a small lever on the roof), and rear hold can be opened. Some lights are present, one on the front, two on the side, and two at the back. Initially, I would like to add various bricks or other parts on the side of the helicopter, but the style wasn’t good at all. So I decided to let it “open”, with 2 yellow plates on the side: one on the bottom, which is contiguous to light and curved slope, one on the top to give more width around the motors.
Rear landing gears are more spaced than front ones, to ensure better stability when the helicopter lands. Also, it wasn’t possible to have a bigger spacing for front landing gears due to steering. I would like to add a hook under the cabin but unfortunately, it was not possible, or helicopter frame has to be different with more parts but never mind.
In conclusion, this small helicopter is fun, easy to build, very small turning radius… And approved by my nephews 🙂
This Dump Truck is a personal creation (MOC). This set has no electric motor, and components used are almost studfull. I wanted to build a very realistic vehicle, like old Lego Model Team sets, including few functions with Lego Technic parts.
The Basket Truck has 2 steering wheels. The 4 rear wheels are linked with the small V2 motor. The truck has no hood, so the motor is apparent.
The dump can be moved. It is maintained up or down thanks to a worm. Pneumatic parts or linear actuators should be used for this vehicle, space constraints have prohibited them, particularly because of the 4 rear wheels drive and transmission parts.
The colors were chosen to make the truck realistic. There’s white cab, black is used for the bottom of the cab and the front bumper. Dump is gray, classical. A spare wheel is a present between the chassis and the dump.
This Pro Truck is a personal creation built a few years ago, with several parts of set Lego Technic #8297. The vehicle has no electric motor, components used are almost studfull. The vehicle measures about 50 cm long and 22 cm wide, the scale is 1/10.
The original idea of the project was to modify a 4×4 Lego Technic #8297. But the construction of the Lego Technic #8297 did not correspond to my project (Pro Truck), so I decided to build a new chassis with the parts of the same vehicle. At the beginning of the project, I set goals. My Pro Truck must have a V8 engine with rear wheel drive, independent suspension in front, rear trailing arm, opening hood, opening doors, with as much detail as possible, and of course steering on front wheels.
Doors can be opened, they stay open like real doors of a car. The same applies to the hood or trunk, which are held in position with shock absorbers.
The V8 motor drives the rear wheels trough a differential. On the roof, the small tire (HOG) is very useful to steer the front wheels. The suspension is quite flexible, which corresponds to reality.
For style, a black hood, and a black roof is opposed to the gray. Big wheels give a massive style.
This grader is a personal creation, build for the challenge on Techlug AFOL french website. The set doesn’t include any Power Functions or pneumatic parts.
The vehicle is composed of 6 wheels, the 2 front wheels steers with the steering wheel. The 4 rear wheels are linked to the motor trough differentials (one per axle). The motor has a “V” architecture with 4 cylinders, and it can be removed easily.
Now, let’s talk about the others functions. The front shovel can be raised up and down, the main blade can be raised up and down and it also can be oriented left or right directly from the cabin. Headlights follow steering movement: like modern cars or old Citroën vehicles, when you turn right, headlights are oriented on the right.
What’s good on this grader? Style, motor, numerous functions, and low complexity. But unfortunately, the main blade doesn’t use worms, so handling is not good at all.
This European Bus is a personal creation, without electric motor or pneumatic parts. Its style is like old “Model Team” sets components used are almost studfull, huge work on style and details. The main color is yellow due to lack of other colors in my inventory.
The bus measures 46 cm length, 11 cm wide and 13 cm high. Like a real bus, the engine is located under the floor at the back of the bus. Its architecture is V with 4 cylinders, and it’s linked to the rear wheel via a differential.
Front wheels can be oriented from the steering wheel or a small cylinder (HOG) on the roof.
The realism was essential when I built this bus. As you can see from the pictures, there are numerous seats inside the bus. There are also bars to stay when traveling, with red buttons which allow asking the driver to stop at next bus-stop. On the body, blank parts may show directions of the bus, and a small window at the front top of the bus may indicate line number or destination.
This US Truck is a personal creation, built a few years ago. Without an electric motor, components used are almost studfull, with a style like “Model Team” Lego vehicles. The truck measures 28 cm length, 10 cm wide and 15 cm high, it contains few functions: V6 engine, connected to the 8 rear wheels, and front wheels are steered from a little cylinder on the roof of the truck.
Many details are present on the truck. You can see the fuel tanks, the running boards or a complete interior with seat, steering wheel, and dashboard. A canopy roof brings brightness to the living space behind the seats. It includes a bed with a TV.
At the rear of the truck, flexible pipes are ready to be connected to a trailer. Doors can be opened, but the hood is fixed.
This Basket Truck is a personal creation. Almost studfull with “Model Team” appearance, there is no electric motor, and it includes several functions.
The Basket Truck has 4 steering wheels, the rear wheels turn less than the front wheel. The center wheels are linked with the V2 motor. The truck has no hood, motor is apparent.
The arm is extensible and it can turn 360 degrees. The basket can be raised up, but there are no stabilizers.
All movements are irreversible with the use of worm, except for wheels and directions of course. Also, when I built this truck, I haven’t got pneumatic parts or linear actuators, today we should use those parts for more efficiency and better look.