Author Posts

Advances Scale Models A-26 Invader

May 25, 2011 No Comments

This high-performance twin-engine ARF captures the same thrill and excitement of the full-size bomber The horizontal stabilizer is attached with a scale dihedral angle and the control linkage is easy to install. The rudder uses pull-pull cable control. SEEING OFFICIAL COMBAT and civilian service for over 40 years, the Douglas A-26 Invader included two monstrous [...]

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Linkage Safety

May 23, 2011 No Comments

Now, let’s talk about proper linkage setup. Many advanced airplanes take advantage of ball-links to attach given pushrods to a servo arm, control horn, etc. Using ball-links in these areas guarantees to improve linkage geometry and allows a given surface to move freely.  While using a clevis works if servo and linkage geometry are correct, [...]

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Inverted issues

May 22, 2011 2 Comments

Clarence,     I have a OS BGX-1 mounted inverted in a one-fifth scale Pica P-40. I am using a J-Tec muffler.This engine is very hard to start. I usually have to turn the plane over, place in a cradle, then it starts, by hand, easily. I then shut it down, put the plane back on its [...]

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Coleman fuel

May 16, 2011 No Comments

I tried Colman fuel on my Fuji BT-32B and my Zenoah G62 with C & H Electronic Ignition. Both engines ran fine with the Colman fuel and Evolution Synthetic oil mixed 35:1. I have on the BT-32B a relay kill switch that shorts the magneto and on the Zenoah G62 I have a electronic kill [...]

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4-Stroke: to vent or not to vent?

May 09, 2011 No Comments

I am a long time reader of your column, first time writer. I have learned a lot from your column, and I appreciate the service you provide with your engine wisdom.  I have been running four stroke model engines since my first OS FS 40 in about 1983. I have always “vented” the crankcase out [...]

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A View from the Table

May 07, 2011 1 Comment

As many of you know, I help out the annual Top Gun Scale Invitational in my duties as the Craftsmanship Judge. I have a unique point of view and get to see “all” the Expert, Team and Masters planes up close and personal! I can tell you that this year’s crop of aircraft was the highest quality yet. [...]

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Why replace cam bearings?

May 05, 2011 1 Comment

I want to replace the cam bearings in my OS 120 4-stroke engine.  I have replaced the crank shaft bearings but can’t get the cam bearings out.  Your help would be appreciated. Thanks, Greg Dear Greg, Unless it is absolutely necessary I would recommend leaving the cam bearings alone. If you do want to go [...]

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2011 Canadian FAI F3A Precision Aerobatic Team–An interview with Team Manager Dave Reaville

Apr 26, 2011 1 Comment

By: Ken Park On July 23rd through August 1st, 2011 Dave and his team will be going to the FAI F3A Precision Aerobatics Championship that will be held at the AMA National Flying Site in Muncie, Indiana. I had a chance to catch up with Dave for a little chat regarding the Canadian team. Dave [...]

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