Does anyone know what 1/2a scale CL scale contests are planned in 2017 for 1/2a scale by the Cholla Choppers CL club in Tucson?
Fred
Fred's question was about the Tucson 1/2A scale contest. This is really the 1/2A CL Multi-Engine Profile Scale contest that was originated by Mike Keville nearly 10 years ago. The rules were originally for profile models but were modified several years ago to allow full scale fuselages. Profile models are allowed and the rules are set up much like the AMA rules now for 1/2A scale such that profile models can compete with their full scale counterparts. A good profile model can outscore a "not-so-good" full scale model.
The Tucson rules can be found on the Tucson Cholla Choppers website:
http://www.ccmaconline.org/2016%201cc%20meps%20rules.pdfScore sheets used for these events are also on the Cholla Choppers website.
The rules require two engines. One of the flight bonuses is to have three or more engines. (No extra bonus is earned for more than three engines.) The rules limit the displacement of each engine to no more than .061 cu in or 1cc. From the above rules regarding the flight scoring for the engines:
"All engines must be running at release.
"A flight becomes official when the model takes off and completes the first lap with all engines running.
"One point will be scored for each airborne lap after the first lap with all engines running for a maximum of ten (10)
continuous laps including takeoff without touching the ground."
The Tucson rules provide for two classes: Unlimited Class for throttled engines and Limited Class for engines with no throttles. The contest also includes a 1/2A scale event for single engine models.
There have been several 3-engine models and several 4-engine models entered in these contests.
Because of the problems with the paved circles in Tucson for these 1/2A models, this contest has been held in Phoenix the past two years and will likely be in Phoenix or near Phoenix in 2017 (probably early October).
Models can be shipped to Arizona and proxy flown. There are competent experienced fliers in the area to fly these things if the builder cannot attend the event. In past years, there have been several proxy flown models the have won trophies.
Keith