Category: Tech Tip – Electronics

If you have spent any time in the RC hobby over the past few years, you have probably noticed a quiet revolution happening under the hoods of high-performance RC cars. The standard brushed servo motors that served the hobby faithfully for decades are increasingly being replaced by brushless servos. This is not merely marketing hype—it […]

Enter the realm where the gentle hum of a scale trawler gives way to the visceral, turbine-like scream of pure, unadulterated power. This is the domain of 4S and 6S LiPo batteries in RC boating—a world not for the faint of heart, but for those who believe the phrase “excessive speed” is a personal challenge. […]

Lengthening the receiver antenna wire on a 2.4 GHz RC radio system will not improve the signal; it will actually make it worse. This is because 2.4 GHz operates at a very high frequency, with a wavelength of about 12.5 centimeters. The receiver antenna is designed to be precisely tuned to this wavelength, typically at […]

In the world of radio-controlled models, the servo is the muscle that translates your inputs into motion. Whether you’re steering a buggy, moving control surfaces on an aircraft, or handling gear shifts on a crawler, choosing the right servo torque is critical. One common question that comes up is: when is a 13kg servo the […]

Some modern ESCs can combine the best of both worlds by starting the motor sensored and switching to sensorless at higher speeds. The Castle Creations Mamba X / Monster X with hybrid firmware is an example – it offers the so called Smartsense technology feature. If you’ve been debating between sensored and sensorless brushless motors, […]

If you’ve ever shopped for RC servos, you probably noticed that Futaba servos sit at the higher end of the price spectrum. At first glance, it can feel like you’re paying way more just for a name—but there’s actually a lot that goes into it. For starters, Futaba has a long-standing reputation for precision and […]

If your Lipo pack is 25C ~ 30C, powering a stock 540 (or anything up to 23T) shouldn’t be a problem. For brushless, a 17.5T without aggressive gearing would still be ok.

Given today’s temperature (25 degree Celcius), cooling fans are needed even when the motor is just a 540 silver can. For the motor in particular, heatsink alone may be insufficient. In fact, when temperature is above 18 degree, it would be much safer to go with fans.

Hard casing lipos would NOT fit into many of the Tamiya cars. Chassis like TA01, TL01 …etc will NOT be able to accomodate hard casing packs. No workaround without extensive filing and plastic removal. TL01: TA02: Even new car like this BT01 will not be able to take a hard casing Lipo: