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Old 08-26-2002 | 04:53 PM
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From: Joplin, MO,
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I am pretty new to RC. I soloed about a month ago on a Sig LT40 and I'm about halfway done building a Sig Mid-star now. I'm interested in learning about flying pattern and 3D. I know that it will a while before I can even think about getting a pattern plane(cost and experience). I've read everything I can get my hands on and reading the posts here for a while and I have some questions.

1. What is a 2x2 plane?
2. What are the major differences between pattern and IMAC?
3. What is the AA in 3D/AA?

thanx

Nathan
Old 08-26-2002 | 10:30 PM
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From: Frederick, MD
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strikerone,
1. What is a 2x2 plane?
This is the maximum length allowed for international competetion which is in meters or about 79 inches x 79 inched length and wingspan.

2. What are the major differences between pattern and IMAC?
Pattern and IMAC both fly routines called sequences. Pattern uses planes that are purpose built for the job. IMAC uses planes that are scale versions of full size aircraft. Small variations of outline are allowed and the color scheme is optional.

3. What is the AA in 3D/AA?
AA stands for Artistic Aerobatics which normally includes 3D manuvers. EFE is another name which stands for Expanded Flight Envelope and there are contests for this style of flying.

Welcome to RC. Your choice of the Mid-Star is one of the best as a second plane.

For more reading visit the pattern and IMAC sites:
http://www.nsrca.org/
http://www.mini-iac.com/

You didn't give a location. Let the members know where you are and you will be invited to visit a local club that you will give you additional information.

EXCAP232
Old 08-26-2002 | 10:44 PM
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From: South, NEW ZEALAND
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All right above, just adding.
F3A which basically is the top level of RC non scale aerobatics has rules to keep the airfames inside a set 2m square "box" and less than 5kgs in weight. A good way to think of it is to draw a 2m box on the ground and the plane has to fit inside it.
The 2*2 is that the planes now have been developed to the extremes of the allowed size because bigger flys better.

For aerobatics you can use anything, even your trainer but at the top level the airframes have been designed to get the most out of the set rules, bigger size means being able to use bigger motors, better wing loading and with this they fly better.
Hope this helps some

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