Paul Tradelius

Getting to Know Your Engine

Aug 14, 2012 No Comments

Before you can effectively use your engine without destroying it, it’s important to know it key features, their purpose and how to adjust them. Needle Valves are tapered rods that are used to adjust the fuel mixture by restricting the fuel entering the carburetor. They come in a variety of sizes and shapes, and are [...]

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SKS Video of XFC Helicopters

Aug 07, 2012 No Comments

SKS Video Productions has just released their professional coverage of the 2012 Extreme Flight Championships, held at the Academy of Model Aeronautics headquarters in Muncie, Indiana, from 15-17 June. If you are into flying helicopters way beyond 3D, and deep into the Extreme, then this is the MUST SEE event of the season.  This year’s event [...]

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Eagle Tree’s new Guardian 2D/3D Stabilizer

Jul 24, 2012 1 Comment

This is Eagle Tree’s new Guardian 2D/3D Stabilizer in my SU-26 airplane. You can see how small it is compared to a quarter, so it will fit just about anywhere in your model – no matter how small the plane. It should be mounted in a level orientation (it can even be mounted upside down), [...]

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More Vibration Cures from Tony

Jul 23, 2012 No Comments

On this continuing issue of trying to cure vibrations, Tony had some issues early on in his nitro scalers with vibration, and an important point to remember is that it’s a scale helicopter.  That means working with the pitch and throttle curves so it sounds like one and flies like one.  Most electric helicopter require a [...]

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Hitec Extreme Servos Are Here

Jul 12, 2012 No Comments

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 [...]

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Ground effect: is it real?

Jul 09, 2012 4 Comments

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” [...]

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Isolating the Source of Vibration

Jul 07, 2012 No Comments

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 [...]

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Solving the Vibration Puzzle

Jun 22, 2012 No Comments

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 [...]

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