[NSRCA-discussion] Rules change proposals

[John Gayer]

If you read the section on functions specifically permitted item 5 you 
will find:

"Examples of control functions permitted:
1) Control rate or control movement limit devices that are manually 
switched by the contestant.
2) Any type of button, dial switch, or lever control that is initiated 
and terminated by the contestant.
3) Manually operated switches to couple control functions.
4) Alerts to the pilot through telemetry that provides a safety function 
such as out of range battery voltage, current and temperature.
/5) Engine management systems that control RPM directly from throttle 
position."/

This is specifically to allow the RPM feedback systems that are coming. 
These will connect the transmitter stick position to a motor RPM, 
thereby correcting automatically for different batteries or states of 
charge. This was added to eliminate any question of legality for RPM 
feedback to the ESC.

The item in the disallowed section examples is to disallow full 
autothrottle operation that might tie power output to  airspeed or other 
aircraft performance parameter that could be used for feedback.  This 
means that you cannot set up the throttle to be an airspeed request and 
have a regulated speed regardless of attitude.

John Gayer
NSRCA Rules Proposal Committee member.

On 4/22/2012 10:49 AM, Peter Vogel wrote:
> Quick question on the "functions not allowed" section of RCA13-4-McHarg:
>
> 9. Engine management systems that coordinate power output with model 
> performance, position, or
> attitude."
>
> Does that make systems such as the Hacker Senestrol system which 
> ensures a consistent RPM based on throttle position illegal?  I know 
> they were specifically designed for F3A use in Europe and have been 
> popular...
>
> Peter+
> On Sun, Apr 22, 2012 at 9:18 AM, J N Hiller <jnhiller at earthlink.net 
> <mailto:jnhiller at earthlink.net>> wrote:
>
>     Attached is a summery of the RC Aerobatics rules change proposals
>     for the
>     2013-14 cycle. I put this together for a presentation at our
>     judging seminar
>     yesterday.
>
>     The actual proposals can be viewed at
>     http://www.modelaircraft.org/events/ruleproposals/rcaerobatics.aspx
>     The initial vote ballots are due at AMA headquarters May 1 2012.
>     Contact your AMA district contest board representative with your
>     concerns
>     and preferences regarding these proposed changes immediately as
>     time is
>     short. Here is a link to the contest board members.
>     http://www.modelaircraft.org/events/cbmembers.aspx
>
>     I pause before sending this fearing I may not have it all correct.
>     If I'm in
>     error just delete it and accept my apology.
>     Jim Hiller
>
>
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>
>
> -- 
> Director, Fixed Wing Flight Training
> Santa Clara County Model Aircraft Skypark
>
>
>
>
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