[NSRCA-discussion] SD-10

[Bob Richards]

Whoops, forgot the link. :-(
 
http://www.toprudder.com/hobbies/fut7uap.pdf

--- On Tue, 8/25/09, Bob Richards <bob at toprudder.com> wrote:


From: Bob Richards <bob at toprudder.com>
Subject: Re: [NSRCA-discussion] SD-10
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Date: Tuesday, August 25, 2009, 4:41 PM







Great stuff, Tony.
 
Here is a link to a column I wrote in the Kfactor a while back. It talks about the 1024 resolution on a Futaba radio. Very similar to what you just said.
 
Bob R.


--- On Tue, 8/25/09, Anthony Frackowiak <frackowiak at sbcglobal.net> wrote:




I'll try to explain this as I understand it. With a 2048 system you get 2048 TX step outputs through the entire stick travel only if the electronic throws in the TX are set to Max. Say that's 150% Travel at 100% Dual Rate. Those numbers vary amongst the brands and models but this is a start. Any reduction from there will reduce the 2048 by some percentage. Let's say Travel is set to 100% and Dual Rate remains 100%. You have just reduced the number of steps by 33% so now you're down to around 1350. If you reduce the Dual Rate to 80% from there you're now flying on 1080. If this started out as a 1024 you would end up at 540. I guarantee you'll feel the difference between 1080 and 540.

I always try to maximize the electronic throws and set the mechanicals to get the surface travel I desire. But some things are inevitable. To get the model to properly break in a spin takes a lot of elevator deflection, so I end up flying with DR set to 50% or so for normal flying. The higher 2048 system makes a difference with this sort of an example. And I do believe the better servos will respond to this fine of a command.

Hope this isn't too confusing.

TonyF


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