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John Glezellis


Conquer the Three-turn Negative Spin

Conquer the Three-turn Negative Spin

In the early days of aviation,  spins were often fatal because most pilots did not understand how to properly recover from a spin. While in an upright spin, the pilot would pull back on the elevator stick in an effort to save the airplane (and their life!) and only make the situation worse. Since the […]
Install a Smoke System

Install a Smoke System

At full-scale and RC airshows alike, watching aerobatic aircraft equipped with smoke systems adds greatly to the appeal for both spectators and pilots. Experienced pilots will make the aircraft all but disappear within the smoke during torque rolls, tail slides, and so forth. Simply put, SMOKE is a pure attention-grabber! I recently decided to upgrade […]
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Make sure to use zip ties on all fuel lines for maximum safety

Let’s Talk Fuel Lines!

On all of my nitro and gasoline-powered airplanes, I use zip ties to secure my fuel lines going from the fuel tank to both the carburetor and the muffler. When routing lines within your airplane, make sure that they can move freely and are not bent in any odd fashion. After all, you need to […]
Landings with a Twist — Master the Inverted Approach with a 1/2 Roll

Landings with a Twist — Master the Inverted Approach with a 1/2 Roll

For the extreme aerobatic enthusiast, there is nothing like performing hotshot maneuvers inches off the ground. One unexpected way to take the crowd by surprise is to add aerobatic moves to your landing. During a normal landing approach, the airplane is in upright level flight and flies downwind parallel to the runway, turns 90 degrees to […]
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Multi-Servo Control Surface Setup Made Easy

Multi-Servo Control Surface Setup Made Easy

With many of today’s giant scale aerobatic aircraft multiple servos are often used to move each flight control surface. Modern computer radios actually have specialized menus to help setup and adjust multi-servo installations, but you can do it the old fashion way as well by using programmable mixes. Basically you setup a two servo setup (for ailerons […]
Smoke Systems Explained–How to be an RC Skywriter!

Smoke Systems Explained–How to be an RC Skywriter!

If you have ever been to an RC airshow, then you’ve seen aerobatic airplanes using smoke during their flight routines. When used properly, smoke systems can add a great deal to your flight presentation. The uniqueness it gives to specific segments of your flight routine will increase their appeal and pizzazz to both the spectators […]
Fly a reverse Cuban-8 with half rolls

Fly a reverse Cuban-8 with half rolls

  When I first started aerobatic competition, symmetrical maneuvers that combined various elements were of the most complex to perform both precisely and consistently. Let’s take the loop, for example. While it may be fairly straightforward to perform a single loop, try flying a vertical 8, which is an inside loop followed by an outside […]
Fly this updated loop!

Fly this updated loop!

Even though this maneuver is intended for indoor precision aerobatic competition, the setup process for both an indoor aircraft and an outdoor park flyer are similar. Flying indoors usually requires more control surface deflection due to the obstacles that exist, which is acceptable for a 4.5-ounce foamie. (Photo by Xavier Mouraux)   Since we are […]
Development of the Hangar 9 Ultimate Biplane, Designer Mike McConville Shares his thoughts.

Development of the Hangar 9 Ultimate Biplane, Designer Mike McConville Shares his thoughts.

While putting together the October 2012 “Let’s Talk Giant Scale” column discussing Flying Wires and Wing Struts, columnist John Glezellis discussed the need for functional rigging with RC aircraft designer, Mike McConville.  Mike developed the very popular Hangar 9 Ultimate biplane which, unlike most biplanes, doesn’t require flying wires. Let’s see what Mike did during […]
Always leave the cowling off until the High and Low End needles are set.

Gasoline Engine Adjustments

  Behind every great flying airplane is a reliable engine with a smooth transition. To obtain this, you may have to spend some time tweaking the High and Low End needles that can be found on the carburetor. Personally, I always start with the factory recommended settings and run the engine first to see if […]
The Need for Tail Bracing

The Need for Tail Bracing

Some aircraft have built-up tail surfaces, which need tail bracing wire. The AMR 42% Super Decathlon shown in the photo, has a built up tail like the full-scale Super Decathlon, and tail bracing is needed! First, check with the instruction manual of your aircraft if tail bracing is needed. Otherwise, if you feel that there […]
Two grommets are being used for the ignition cables as well as the red sensor lead on my Comp-ARF Edge 540's DA 120 Engine.

Ignition and Electrical Component Safety!

When I build an airplane, I always spend extra time to ensure that all internal components are installed properly and well-secured, whether I am building a .25-size glow-powered model, or a 170cc giant-scale aerobat! This time, we will take a look at my ignition installation on my 2.6m Composite-ARF Edge 540. This is an all-composite […]
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