Drag Car

Gadget Engineer kit 01 | version 2.0 | 2023 December Version 1.0

What is Drag Car

future scientists and engineers! Today, let’s dive into the exciting world of drag cars and discover the science behind their incredible speed.

A drag car is like a superhero of the racing world. Imagine a sleek and powerful machine designed for one thing – going really, really fast in a straight line. Let’s break down the STEM (Science, Technology, Engineering, and Math) magic that makes these speedsters so amazing.

Engine Power (Science) : At the heart of a drag car is a supercharged engine. Think of it as the car’s heart, pumping power and energy. The engine takes in air and mixes it with fuel in a special way to create controlled explosions, propelling the car forward with a force that’ll make your hair stand on end!

Aerodynamics (Engineering) : Drag cars are shaped like bullets to slice through the air with minimal resistance. Engineers carefully design the car’s body to reduce drag, which is like the force that tries to slow it down. The smoother the car moves through the air, the faster it can go!

Grip and Traction (Technology) : Imagine racing shoes for cars! Drag cars have special tires with a super grippy surface that helps them grab onto the track like glue. This ensures that all the engine power gets translated into forward motion, launching the car like a rocket.

Timing and Reaction (Math) : Drag racing is a game of precision and timing. Math comes into play when drivers calculate the perfect moment to hit the gas pedal, considering factors like distance, speed, and reaction time. It’s like solving a real-life puzzle to achieve the fastest time!

How Your Drag Car Looks Like

Parts of Drag Car

Hey speed enthusiasts and curious minds! Buckle up because we’re about to take a journey under the hood of a toy drag car. Ever wondered what makes these miniature speedsters zoom across the floor? Let’s peel back the layers and discover the exciting parts that work together to make your toy drag car the coolest thing on wheels!

No.01 : CAR3 X 2

No.02 : CAR1 X 2

No.03 : CAR2 X 2

No.05 : Spacer x 4

No.05 : Wheel x 2

No.06 : Bottom Part x 4​

No.07 : TT Motor x 1

No.08 : Motor Holder x 2

No.09 : Wheel Back x 2

No.10 : Wing x 2

No.11 : Bottom Part Two x 1

No.12 : AA Battery Holder x 1

No.13 : Spoiler x 1

No.14 : Logo Part x 1

No.19 : Switch x 1

Engineering Drawings of Drag Car

Electronic Diagrams

Connecting the Circuit :

  • Take a wire and connect one end to the positive (+) side of the battery. This is where the magic begins!
  • Connect the other end of the wire to one terminal of the switch. The switch is like the gatekeeper, deciding whether to let the electricity through.
  • Now, connect another wire from the other terminal of the switch to one of the terminals on the motor. Get ready for the excitement!
  • Finally, complete the circuit by connecting the other terminal of the motor to the negative (-) side of the battery. This creates a loop for the electricity to flow.


Gadget Engineer Episode

Coming Soon

Buy your Drag Car

The Best STEM Tool for Learn some new Innovations
Age : 6 – 11 | Kit Fee : LKR 3,700

Code Guide

  1. When the program starts, the robot moves forward with the gripper open. (Going to collect object)
  2. When the hand is placed above IR sensor robot must stop and close the gripper. (Collecting object)
  3. When the hand is raised again robot moves forward with the closed gripper. (Moving with collected object)
  4. When the hand is placed above the IR sensor again, the robot stops and opens the gripper. (Dropping object)
  5. Return to 1.

on start
    close gripper


    read IR sensor value

    if IR == LOW

turn off motors

if gripper is open
close griper
else if gripper is closed
open gripper

wait 3 seconds


turn on motors

end if;

end loop;