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Centering the Sub-Trim Debate: An In-Depth Analysis by Earl Haury

Various opinions exist as to how subtrims affect servo travel, especially when used with dual servos on elevators. This discussion shows data that can help understand subtrims. While the measuring equipment was setup I made a few more measurement to satisfy my curiosity. A comparison of the performance of old with new servos, trim effect, […]

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LiPo Battery Anatomy, Fire Behavior, and Safe Practices

Most of us who use LiPo batteries recognize that there’s some risk involved. The things have been overcharged, shorted, cut, nailed, etc. in numerous U-Tube videos that dramatically demonstrate the potential to make smoke and fire. There are also a variety of methods offered to minimize risk and manage a fire, with some being better […]

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Sbus Worth the Fuss?

The typical discussion for using Sbus revolves around reducing wiring clutter and usually moves toward a discussion of individual servo leads providing some redundancy advantage over a single lead for a bunch of servos. A reasonable discussion, as far as it goes. Are there other reasons to use Sbus, especially in a pattern airplane? Probably. […]

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Allure Unloaded

Out of the box the Allure is arguably “the” best flying monoplane currently on the market. It suits all currently available power systems including glow, electric and contra. All three power systems coupled with the Allure finished 1st, 2nd and 3rd at the 2015 US Nationals so choose your weapon! I have been flying my […]

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Measuring Incidence Angles and CG Location

We often refer to incidence angles, CG location, and control travels with respect to our pattern airplanes, but just how accurate are the numbers? Does it even matter? We each may have different criteria for making these measurements. Sometimes it’s just for initial set-up to the designer’s specs, or maybe for future reference as we […]

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Throttle Tech Add-On (Modeling Ingenuity at its Best)

The Throttle-Tech is primarily a device to ensure constant performance throughout a pattern flight with E power. A secondary benefit is its notification of battery status. Ever try to fly a sequence with a discharged pack? The T-T can help prevent that. There are two LED’s on the circuit board, a green and an orange. […]

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Allure Build Thread by Jason Arnold – Must Read

If you’re building an Allure, Bryan highly recommends that you have a look at Jason’s build thread.  It has some excellent information that you will be able to apply to your Allure.  Jason’s in-depth documentation sets the bar very high.  Enjoy the thread and let us know what you think! Jason is our distributor serving […]

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Electric Allure Build Guide and Evaluation

Earl Haury has gotten his hands on his brand new electric Allure and put together this fantastic build guide/evaluation. Click below to download the PDF and read on!

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Anatomy of a Snap Roll

I love reading everything that Earl writes because it’s so thorough and informative. He does an excellent job explaining the physics behind a snap and how we can use that knowledge to inform our methods for trimming and flying the maneuver. The next time you get in a debate with your fellow pattern fliers about any aspect of a snap roll you know where to go!

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Triangulation Trimming: A First Hand Account

The following is an article written by Jason Arnold, an Australian F3A pilot and big supporter of our trim methodology. He has had great success with Triangulation Trimming, and he’s not the only one. Many around the world have followed Bryan’s advice from a distance with remarkable results. We asked him to write about his experience because it’s one thing for us to tell you that we know what we’re talking about, but another thing altogether to hear from someone who has experienced the difference first hand.

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Earl Discusses Air Density and Pattern

Have you noticed that some days your airplane has more or less power than others? That it’s more or less responsive? The variable property causing this is air density. Full scale pilots are very aware of air density, expressed as Density Altitude (DA), and its effect on aircraft performance. Low DA provides good performance in […]

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Tech-Aero Designs Throttle-Tech

Guest author Earl Haury tells us about a great product from Tech-Aero Designs, the Throttle-Tech. This nifty device makes it possible to have consistent power output from your electric airplanes throughout the entire flight. Earl uses his great technical mind to go in-depth into the principle behind which this device works and talk about what to expect when using it. He also offers suggestions for settings that have worked for him. A great read (even for a YS guy).

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Guest Author George Asteris: Get the Most Out of Your YS

I’ve been asked to share my experience with YS engines and the procedures I use in order to run and maintain the engines. Let me note that I fly YS engines exclusively and have done so for the past 30 years. One of the advantages of YS that I like is the amount of flying time I get. On a 20 oz. tank, I can fly almost 2 full sequences of the Masters pattern.

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Guest Author Earl Haury: Essential Tools

There’s an old saying that “A craftsman is only as good as his tools”. That’s certainly true for precision flying, and applies equally to all forms of modeling. One is not likely to win any model meet, or just enjoy a day of recreational flying, without frustrations if using poor equipment. Good quality airplanes don’t just happen, they’re built that way. It doesn’t matter much if they’re scratch built or an ARF, either must be built properly. This requires the use of the proper tools.

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