[NSRCA-discussion] Aurora review

Fri Oct 29 11:19:34 AKDT 2010

Slow Friday........the rulebook (Section 4.4) specifies "Open-Loop type" 
controls and uses the verbage "Control Functions Not Permitted" in the example 
section where electronic feedback is addressed....the DX8 clearly does NOT close 
the loop on any feedback parameters and the feedback telemetry is clearly NOT 
used as a control function in the flight control system...

4.4: Equipment Functions. Radio control equipment shall be of the open loop type 
(i.e. no electronic feedback from the model to the ground). Auto pilot control 
utilizing inertia, light, gravity, or any other type of terrestrial reference is 
prohibited. Automatic control sequencing (preprogramming) or automatic control 
timing devices are prohibited. RCA-3 Examples of control functions permitted: 

1) Control rate or control movement limit devices that are manually switched by 
the pilot. 2) Any type of button, dial switch, or lever control that is 
initiated and terminated by the pilot. 3) Manually operated switches to couple 
control functions. Examples of control functions not 

permitted: 
1) Snap buttons with automatic timing mode. 2) Preprogramming devices to 
automatically perform a series of commands. 3) Automatic leveling or 
stabilization in any axis (gyros, etc.). 4) Propeller pitch change with 
automatic timing mode. 5) Any type voice recognition system. 6) Any type of 
learning function involving maneuver to maneuver or flight to flight analysis. 
7) Model navigation or positioning systems (GPS, distance, or height sensors, 
etc.). 8) Electronic or other signal or feedback from the model of any kind. 9) 
Engine management systems that coordinate power output with model performance, 
position, or attitude. 

________________________________
From: Tim Taylor <timsautopro at yahoo.com>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Fri, October 29, 2010 1:58:56 PM
Subject: Re: [NSRCA-discussion] Aurora review

By the rule book the DX8 would be clearly illegal for pattern because of the 
telemetry.  I doubt anyone would declare it so however.

Tim

--- On Fri, 10/29/10, Phil Spelt <chuenkan at comcast.net> wrote:

>From: Phil Spelt <chuenkan at comcast.net>
>Subject: Re: [NSRCA-discussion] Aurora review
>To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
>Date: Friday, October 29, 2010, 1:23 PM
>
>
>Jerry,
>
>If you don't need more than 8 channels, I'd recommend the new DX-8 -- has 
>telemetry back to the Tx for 4 data sources.  I have one.  The sticks re really 
>silky and the 11 ms frame rate is VERY fast... $430.00 for Tx, Rx and telemetry 
>module...
>
>At 12:17 PM 10/29/2010, you wrote:
>
>Jon, thanks for the input. I have decided to replace my old Stylus (1995 
>version) and have started checking around. Looks like 2.4 is the way to go.
>>Jerry
>>
>>----- Original Message ----- 
>>
>>From: Jon Lowe 
>>
>>To: nsrca-discussion at lists.nsrca.org 
>>
>>Sent: Friday, October 29, 2010 9:35 AM
>>
>>Subject: Re: [NSRCA-discussion] Aurora review
>>
>>
>>Jerry, 
>>
>>
>>I just had one and sold it.  Reasons:
>>
>>
>>No stick switches
>>
>>No split expo on each side of neutral.  I use split expo, especially on 
>>elevator.
>>
>>Mine came with the infamous stick deadband on three axes and I ended up sending 
>>it back twice to get it properly repaired.
>>
>>Lockouts/glitching.  Found a burned/corroded antenna connection in the receiver 
>>and sent it back for repair.  Another Aurora 9 flyer also had glitching/lockouts 
>>at our field.
>>
>>Only had digital throttle trim, and it cannot be mixed or assigned to a slider 
>>such that it only acts on low throttle.
>>
>>
>>They promise lots of feature updates via firmware, but are VERY slow in 
>>releasing anything.  And they won't say exactly what will be in the next 
>>release. Bugs in heli and sailplane setups.   Requires purchase of a separate 
>>box to update firmware.  Website in Korea that has the updates has had frequent 
>>outages.  You CANNOT download the firmware and install it later.  You MUST be 
>>hooked to the internet and download it real time. My perception is that they are 
>>more enthralled with telemetry (that was a year late in being released) than in 
>>getting the basic system up to snuff.  Oh, and as far as I know, they still 
>>haven't released the 72mHz module promised last fall, if that is of any concern.
>>
>>
>>Was glad to get rid of mine.
>>
>>
>>Jon Lowe
>>
>>
>>
>>-----Original Message-----
>>
>>From: Jerry Stebbins <JAStebbins at att.net>
>>
>>To: Discussion -NSRCA <nsrca-discussion at lists.nsrca.org>
>>
>>Sent: Fri, Oct 29, 2010 8:40 am
>>
>>Subject: [NSRCA-discussion] Aurora review
>>
>>
>>I seem to remember someone did a vey thorough review of this radio a short while 
>>back. Does anyone remember who, and what Magazine-when?
>>
>>Thanks
>>
>>Jerry
>>
>>
>>_______________________________________________
>>
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--> There are only two types of aircraft -- fighters and targets.

Phil Spelt, Past President, Knox County Radio Control Society, Inc.
       URL: http://www.kcrctn.com
AMA--1294,  Scientific Leader Member  SPA--177, Board Member
      My URL: http://mywebpages.comcast.net/~chuenkan/
      (865) 435-1476 v  (865) 604-0541 c 
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