At high speeds, air moving over the RC car can cause lift, making it harder to control. A well-designed spoiler pushes the rear of the car downward, increasing traction on the rear wheels. This helps in better cornering grip by preventing the rear end from sliding out (reducing oversteer); and improved acceleration by keeping the […]
Which handthrown foam glider is better for RC?
The picture shows a Lidl style glider VS a fighter jet glider. Both were modified from hand thrown to RC. So, which one is better for RC modification, assuming differential thrust will be used? My answer is the fighter jet. It is solid, easy to modify, and can fly even with just TWO 720 motors […]
2S lipo cannot take charge
A 7.4V 2S LiPo battery consists of two 3.7V cells connected in series. If one cell is unable to take charge and rapidly drops to zero voltage after charging, it is likely due to severe damage or internal failure. One of the most common reasons for this issue is an internal short circuit within […]
BT01 modular gearbox
One very good thing about the BT01 gearbox module is that you can test fit the gears and make sure they mesh well before plugging it back into the chassis. With TT01, TT02 and TA02, easy test fitting of gears is diffult if not impossible. With BT01, it becomes real quick and easy.
Tamiya TA02 pinion alignment
As you can see from the photo, the TA02 pinion positioning along the motor shaft is kinda guesswork. If it is too much to the outside it will scratch the gear cover. If it is too much to the side of the motor, the pinion will be subject to uneven wear. This is the ideal […]
Tamiya BT01 front bumper
The BT01 front bumper has a large gap, and structurally this will give room for easy breakage. You may want to use foam or rubber to fill the gap.
ESC Wire Oxidization – What It Is and Why It Matters
If you’ve been in the RC hobby for a while, you’ve probably seen it—wires on your ESC or motor that don’t look as shiny as they used to. Instead of bright copper, the strands might look dull, darkened, or even greenish. That’s oxidization, and while it might seem minor, it can actually cause performance issues […]
Optimal and max prop size for 720/820 coreless motors
The 720 motor is usually faster but has less torque than the 820. That means with a larger prop the 820 will do better. The 820 motor has a larger stator, providing higher torque but slightly lower RPM. At higher voltages, both motors spin significantly faster. HOWEVER, not all of them can survive 2S power. […]
Differential thrust RC plane prop spinning and weight balance configuration template
On a standard glider RC plane (the Lidi glider) that has twin motors mounted on the wings, and when one or both motors are spinning in the wrong direction, they won’t generate proper thrust. The motor spin direction depends on whether your twin-motor plane has puller (tractor) props or pusher props. Here’s how it works: […]
RC glider stall to spin, and other issues
When a differential thrust control foam glider has the motor props spinning in the wrong direction / you mess up the LEFT & RIGHT connection / improper transmitter left and right adjustment, it will stall to spin right after you throw it. Different foam gliders and different propellation mechanisms (push VS pull) may produce entirely […]