The high resolution and response of the new HS-83XX series of servos brings improved performance and control to your plane, heli and car. Designed with an efficient coreless motor, a titanium gear train and 7.4 volt capability, these ultra performance servos are at the top of the food chain. The HS-8360TH offers accelerated speed, with the HS-8370TH providing [...]

When a helicopter is hovering at a height that’s approximately less than the diameter of one rotor disc, it really does encounter “ground effect.” This is because the downwash velocity created by the rotor blades can’t be fully developed because the helicopter is so close to the ground, so the helicopter rests on a “bubble” [...]

Jim – Here are a few things I would suggest to isolate the source of vibration. Keep going down the list and you should find the problem. 1. Remove the main rotor blades and start the engine. Since this is an experiment, take the helicopter well away from the pit area and run up the [...]

Hello Paul, I hope you might be able to offer some sage advice on a project that has me stumped.  I just completed a Century Heli / Funkey MD-500D body as an OH-6 “Loach”.  For mechanics I’m using my flybarless Chaos 600 with MicroBeast that I’ve been flying over a year and a half. I [...]

For those of you flying extreme 3D maneuvers, servos are now being offered with metal gears. Made from a mixture of aluminum, steel and brass, these gears are 16 times stronger than the standard gears. However, they do have one big disadvantage, and that is they will wear over time. Depending on how hard you [...]

The RevGlow is finally a lightweight switchless way of igniting your glow plug. The RevGlow powers the plug for 12 seconds as soon as rotation is detected by the ThrottleMax sensor, but will not power the plug if the throttle is above 25%.  Now you can have an added measure of safety to keep your [...]

Since I’m certainly no expert on modern digital servos, I called Hitec RCD and talked to their servo expert – Mike Mayberry – to get the technical information for the rest of this article. And the first thing I asked Mike was what are we getting in these higher performance, and higher cost, servos? He [...]

Many years ago new radios came with four servos. These were not standard servos, or high speed servos, or high torque servos, but just plain ole servos. That’s all there were, and we were very happy to have them. Early radio manufacturers also used a specific color so their radios could be easily identified from [...]