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Author Topic: CL Scale Rule Proposals  (Read 1894 times)

Offline Fred Cronenwett

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CL Scale Rule Proposals
« on: September 01, 2014, 12:51:15 PM »
If you look on the AMA website the Interim voting results have been posted for the cross proposals, all of them have been accepted except for one.

https://www.modelaircraft.org/files/CLSC2014InterimVote.pdf

All of the main proposals were accepted, this means that 1/2a scale and Authentic scale would become an official event. Designer Scale would be eliminated. Authentic Scale would replace F4B at the Nats.

Be aware that there is also a line diameter change with the new rules, below is a summary of the line diameter changes for multi-Strand lines only. Be ready next year for the new line diameters when 2015 starts.

Keep in mind these are not valid until they have gone thru the final vote and the rules are written for 2015. Look in Section 15-4 in the new rule proposal for the new line diameters.

                                       2-lines    3-lines             2-lines     3-lines
Model Weight                   2013 Rules                      2015 Rules
  0.00 - 1.50                     .012       .008                   .012         .010
  1.51 - 2.50                     .012       .008                   .012         .012
  2.51 - 4.00                     .012       .012                   .018         .015
  4.01 - 8.00                     .018       .015                   .021         .018
  8.01 - 12.00                   .021       .021                   .024         .021
12.01 - 16.00                   .024       .018                   .027         .024
16.01 - 20.00                   .027       .021                   .027         .024

MBS model supply sells the bulk .027 line as leader material, you may have to call to see if rolls are available longer than 100 feet.

http://www.mbsmodelsupply.com/Catalog.pdf

Fred
« Last Edit: September 11, 2014, 10:41:21 AM by Fred Cronenwett »
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Fred Cronenwett
AMA CLSCALE7 - CL Scale
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Re: CL Scale Rule Proposals
« Reply #1 on: September 01, 2014, 02:08:08 PM »
It is my understanding of the change proposal process that the final vote on all of the final versions of the rules proposals is to be completed on Sep 15.  So nothing is official yet until the Contest Board Chairmen submit their final votes by the respective Contest Boards to the AMA by that date.

Nevertheless, be prepared for likely significant changes in the CL scale rules.  The people responsible for these changes/corrections are to be commended.

Keith
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Offline Paul Smith

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Re: CL Scale Rule Proposals
« Reply #2 on: September 01, 2014, 02:50:07 PM »
The proposed line sizes are punitive, to say the least, against three-line control systems.

The mandate to use .027" lines on some models has always been perplexing to me. The rated strength of .027" 7-strand corecable is 125 pounds for one line (250 for two, 375 for three). Who is supposed to fly a CL model that needs 250 pounds of line strength?  If we really need 250 pounds of line strength we need to take a more sane look at what passes for a CL model.
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Paul Smith

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Re: CL Scale Rule Proposals
« Reply #3 on: September 01, 2014, 04:33:42 PM »
The line diameters required in the rulebook for CL models are generally based on the strength required for one remaining intact line.  Granted, there is small chance that two lines of a three line system might fail, though it is possible if the line clips are improperly attached.  Nonetheless, the line diameter is based on one line being intact, tethered to the model.  

Keith
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Offline Paul Smith

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Re: CL Scale Rule Proposals
« Reply #4 on: September 01, 2014, 09:12:37 PM »
I remember very clearly that Carrier line sizes were based on all three lines carrying the load.  Otherwise, one, two, and three line systems would all use the the same diameter per line.

Up until now, two- and three-line standards attempted to equalize drag and strength for the various systems.  Come to think of it, Speed also assumes two good lines on a two-line system.

Is that a misprint where they jump right from .012" to .018" without even using .015" in the middle?

This looks like yet another bias toward the 2.4 system.
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Offline Tim Wescott

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Re: CL Scale Rule Proposals
« Reply #5 on: September 01, 2014, 10:05:37 PM »
Paul, you can always urge your contest board representative to vote against it.
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Offline Fred Cronenwett

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Re: CL Scale Rule Proposals
« Reply #6 on: September 02, 2014, 04:38:47 AM »
The jump from .012 to .018 is correct (only applies to the 2 line systems), I took that directly from the proposal that is posted on the AMA website under section 4 of the CL scale proposals.

Fred

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Offline Paul Smith

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Re: CL Scale Rule Proposals
« Reply #7 on: September 02, 2014, 05:08:04 AM »
Quote from: Tim Wescott on September 01, 2014, 10:05:37 PM
Paul, you can always urge your contest board representative to vote against it.

We of Control Line have NO contest board rep.  We are under RC scale.  Our lines and everything else will be what RC thinks is best for us.

This is just a discussion site, so we can discuss the rules.
 
In reality, at The Nats for example, they didn't even measure length, let alone mike the diameter.  The long lines weren't noticed until the model took off and landed five feet outside the 70' safety circle.
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Offline john e. holliday

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Re: CL Scale Rule Proposals
« Reply #8 on: September 02, 2014, 01:17:36 PM »
Well if you don't let your contest rule board member know what your thoughts are, suffer the consequinces.   I had one responder in CLPA.
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Offline Tim Wescott

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Re: CL Scale Rule Proposals
« Reply #9 on: September 02, 2014, 03:32:52 PM »
Quote from: Paul Smith on September 02, 2014, 05:08:04 AM
We of Control Line have NO contest board rep.  We are under RC scale.  Our lines and everything else will be what RC thinks is best for us.

Whether he flies RC or CL, he's still your contest board member.  If he's an RC guy, tell him what he should think is best for you, and then he'll know how to vote.
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Offline Fred Cronenwett

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Re: CL Scale Rule Proposals
« Reply #10 on: September 15, 2014, 09:05:28 PM »
The AMA has posted the results of the voting for the Cross proposals

Here are the final voting results

https://www.modelaircraft.org/files/CLScale2014FinalVote.pdf


Only one cross proposal that was not approved

https://www.modelaircraft.org/files/CLSC2014InterimVote.pdf

Fred
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Offline Clancy Arnold

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Re: CL Scale Rule Proposals
« Reply #11 on: September 23, 2014, 07:10:08 PM »
Eight active Control Line Scale competitors volunteered to undertake rewriting the AMA Rules for Control Line Scale competition.  They submitted 8 Rules Change Proposals.  These 8 proposals were then reviewed by others and 19 Cross Proposals were generated to address the comments received.  The 8 original proposals with 18 of the Cross Proposals were accepted by the CL / RC Fixed Wing Scale Contest Board.  That is 27 proposals and/or cross proposals were submitted and 26 passed. 

96.3 % accepted!  That may not be a record but I assure you it is way above average! 

Clancy
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