Yeah Doc, that 7.5 lb limit has been in there for AGES!!
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Bigiron
Just to set the record straight about the past and current rules for the weight limit of CLPA models.
For a number of years prior to 2005, the AMA rulebook for CLPA stated that "There is no maximum model weight". This was in the rulebook since the early 90's if not to sometime back to the 80's. This is not to be confused with the General Control Line rules in the current rulebook as well as the rulebook prior to 2005 which limit Control Line models to a flying weight of no more than four pounds unless otherwise permitted under specific event rules. As early as 1972, there was no maximum weight specified in the rulebook for any CL model and for CLPA, the lines sizes were specified based on engine displacement and the pull test was 10G's.
When our AMA rules adopted the FAI engine displacement limits, including the "non-adjustment" provision for "4-stroke cycle engines" and the provisions for electrics in the 2005 rulebook, the FAI "Maximum model weight" was established at 3.5 kg which translates to 7 lbs, 11 oz, or 123 oz. This limit applies to all CLPA models whether powered by electrics or by IC engines.
Maybe that three-year period from 2005 to present on Marvin's time scale translates to "AGES!" Interesting.
It is also interesting that some want our AMA rulebook to adopt the FAI F2B rules across the board, yet others find fault in those sections in our AMA rulebook that already align with the FAI rules.
Keith Trostle
Topic: Control Line General Rules (Read 2921 times)