Darrell Sprayberry of Dalton, GA has earned a reputation as one of the finest scale helicopter modelers in the world, and at this year’s Toledo Weak Signals Expo he placed first in the Helicopter class with his fantastic scratch-built H-34 Choctaw. Also known as the Sikorsky S-58, the H-34 is an iconic design–perhaps the best [...]
A series of flight checks are required to program your radio for 3D flying. These flights should not be viewed as practice flights, but a time to evaluate your plane’s tendencies and fine-tune your radio setup. It’s therefore important to conduct your initial flight checks in calm conditions to make it easier to detect your [...]
Adverse yaw is an inherent opposite yaw or skid that occurs with aileron deflections. A positive angle of attack is generally required to produce the wing lift needed to keep an airplane in the air. When the ailerons are deflected at a positive angle of attack, the down aileron presents a wider frontal cross section, [...]
With the ProTek R/C ”TruGlow” Remote Glow Igniter System you can leave your old glow plug battery in the field box because the “TruGlow” uses your receiver battery to power the glow plug in your airplane or helicopter. This not only makes it easier to start your engine, but can also be setup to help [...]
Everybody loves getting a new radio system, but unfortunately that could also mean the additional cost of a new radio case to protect that fancy new radio. Enter the ProTek R/C Universal Radio Case where the minds behind ProTek R/C have developed an all in one solution that will allow you to use a single radio case [...]
If you have been building RC warbirds for a while, you may notice that there is a terrible blight plaguing many of them… tail-heaviness! The scourge of tail-heaviness leaves the modeler with few good options. First, he can fly the model as-is with the CG at the limit of its aft location and stagger around [...]
Many years ago we tried using Zenoah gas engines in our helicopters, but there were several problems we could not overcome. First, they were not designed to be used in helicopters. Rather, they were designed for some type of commercial operation, such as powering a small blower. This meant they were unbalanced, so they had [...]
