Motor Costs Comparison (more pro-electric)

[Dean Pappas]

Hi Earl,
You mean airspeed. I agree with you. When the language I extracted was being written, I remember hearing Ron Chidgey remark that if the Technical Sub-Committee sincerely thought that it would be possible to "put the genie back in the bottle" in something like '85 or '86, they would have tried to legislate a dead simple 5-channel radio with only servo reversing, multiple or dual rates (no automatic dual rates) and endpoint adjustments. Needless to say, the Programmable Features Non-Proliferation Treaty died on the negotiating table. Part of me hankers for it, though! 
Later,
    Dean
 

Dean Pappas 
Sr. Design Engineer 
Kodeos Communications 
111 Corporate Blvd. 
South Plainfield, N.J. 07080 
(908) 222-7817 phone 
(908) 222-2392 fax 
d.pappas at kodeos.com 

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On Behalf Of Earl Haury
Sent: Tuesday, September 21, 2004 10:53 AM
To: discussion at nsrca.org
Subject: Re: Motor Costs Comparison (more pro-electric)


Dean
 
I agree.
 
Since the very nature of how servos function involves control input (from the ground) and position info (onboard) (feedback loop) it seems obvious that onboard feedback loops are not only permitted, but necessary. A good example of an expansion of this is EGT to control engine A/F. 
 
I have toyed with the idea of an airspeed feedback loop to the throttle, where airspeed is set by stick position and the "loop" works to maintain that speed. In discussions with folks, I find that many interpret this as violating the intent of the "no feedback" rule while careful interpretation might result in a different conclusion. Basis current rules, any communication between a motor and ESC would seem quite legal. Adding speed input, I suspect could trigger a rules change.
 
Earl

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