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Arizona Model Aviators |
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Club Calendar Club Events
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.25 Racing Rules
These rules are to allow Club racing in an established format. The Arizona Model Aviators R/C club has followed these rules for several years with few modifications. Presented here are the most current rules, which were voted on at the last race of the 2007-2008 season, held 5/18/2008. Rule changes for the next race season will be voted on by pilots who participate in the last race of the current season. Race season is Sept to May.
The Sept 2008 race will allow inclusion of the ModelTech and Great Planes 1/12th ARF Warbirds as noted below. At the conclusion of the Sept 2008 race a special vote will be taken whether to permanently include these aircraft in the approved list.
AIRCRAFT: Aircraft shall be marked according to Academy of Model Aeronautics Pylon Racing Rules (see below): 10. Aircraft Markings 10.1. Registration numbers. Registration numbers shall consist of the last two or three digits of the pilot’s AMA number, preceded by a capital “N” and followed by the first letter of the pilot’s last name. Alternatively, registration numbers may consist simply of the pilot’s full AMA number. Letters and numbers shall be clearly legible, at least one (1) inch high, and located either on the top of the starboard wing panel or on both sides of the fuselage, behind the wing.
All aircraft must be a minimum of 400 square inches to qualify. The current list of aircraft that are allowed are: Model-tech .25 size P-51 – Almost Ready to Cover (ARC) - Slope or electric versions will not be allowed. - Any color scheme can be used - No enhancements are allowed that might contribute to the speed of the model World .25 Combat Series Aircraft – Almost Ready to Fly (ARF) - Spitfire, YAK, P-47 and Zero aircraft qualify - Only allowed modification to airframe is to add a tail wheel - Covering can be stripped/re-covered in any scheme - Canopy installation is optional - No other enhancements are allowed that might contribute to the speed of the model SuperStitch’n .25x400 Club Racer – Built from Plans - Kits are available from Kenny Kear - Aircraft must be built and outfitted per the plans - Go/No-Go gages will be used to qualify aircraft - Main landing gear wheels shall be min 2” in height and min ½” in width - Spinner nuts shall be metal with 1” min diameter and 1 1/4” max diameter Great Planes & Model Tech 1/12th Scale ARF Warbirds (Sept 2008 Race Only) - Fixed Gear only, No retracts Aircraft – General Comments: - Stock wheels and spinners can be replaced with same sized aftermarket components - Aftermarket wheels must be equal to or greater than the original width - A single declared backup is allowed, it must be on the same frequency - All aircraft must be available for technical inspection which will take place prior to the Pilots meeting ENGINES: - ONLY .25 sized engines are allowed - Maximum new purchase price (Engine and Muffler) is $130 (Note: This is the purchase price either from a hobby shop or mail order, not necessarily the list price) - Engine must be commercially available today, from multiple retail outlets - No aftermarket add-on equipment is allowed - The only pressure allowed is muffler pressure supplied by the manufacture’s pressure fitting on the muffler directly to the tank with no check valves allowed - Side Exhaust, Front Intake 2 Stroke Engines only - No pipes, only the stock manufacture’s muffler allowed and must be in ORIGINAL STOCK configuration - Muffler baffles can be removed - Approved Engines for 2008-09 Race season OS, Irvine, Webra, GMS, Fox For Webra engines: The only approved mufflers are what are commercially available as of May 2008 |
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