Here is Joe's article from Horizon Hobby website. http://www.horizonhobby.com/Explore/Article.aspx?ArticleID=1432
John D -----Original Message----- From: Joe Wurts [mailto:[EMAIL PROTECTED] Sent: Thursday, March 24, 2005 1:13 AM To: Soaring@airage.com Subject: [RCSE] Re: Programming tricks help Jim, I found that the stock manual that is supplied with the radio did a pretty good job for me in explaining the "how" of the programming. From what I can glean from your email, you are looking for more of the "what" or even the "why" of how you set up an airplane. I wrote up my thoughts on programming the 9303 a while ago, and sent it off to JR. I've heard that it is available on their website somewhere, but I've not ever hunted it down. I'm sure that someone on RCSE will kindly assist here in locating the URL. I've done some of what you are talking about, including the softer throws for the thermal mode (along with up trim), different aileron to rudder coupling for different flight modes, etc. One thing that I've gotten away from, is the concept of a separate landing mode. I just know that I'll forget to activate the landing mode in the stress of a difficult flight, so I just don't have a landing mode (I've seen others that have a separate landing mode get in trouble when they forget to enable their landing mode before landing). I have just two switches active on the Tx, the launch switch, and the three position flight mode switch. The launch switch institutes the launch mode regardless of where the three position switch is. The flight mode switch is active when the launch mode is not selected, and it has speed, cruise, and thermal modes. The speed mode has a bit of down trim, little differential, little ail>rud coupling, along with the 1-2 degrees of reflex (airfoil dependent). The cruise mode has the trailing edge in the neutral point, neutral elevator, a little bit more ail>rud coupling, and a bit more differential in the ailerons. The thermal mode has about 3 degrees of camber, lots of ail>rud coupling, a bit of up elevator preset, and about the same differential as the speed mode. Also, I cut the aileron and elevator throws in half for the thermal mode, which helps me to fly smoother when thermalling. The low differential for thermalling is because it is less draggy to use the rudder than a spoileron for coordinating a roll input. I have the crow on for all flight modes, as there are times that I'll forget to be in the proper mode for landing. One thing, I typically don't have to worry about being in thermal mode for landing, because the sluggish plane response in thermal mode is a very positive reminder not to start a landing approach in thermal mode! Also, I like having the camber slider active for landing so that I can slip in some extra camber if I end up needing to get a little extra float if I accidentally slow the plane down too much on final. If the air is exceptionally turbulent, or I am doing very low level thermalling, I'll leave the plane in the cruise mode, but add camber using the side slider. Other than that, and in stretching the landing, I use the flight mode switch to define the camber, and don't bother with using the side slider. To me, it is easier to just put a switch in the appropriate position dependent on what type of air that I'm in, and not have to worry about adjusting the camber all of the time. Another item that I do that doesn't seem to be typical, is that I always have my elevator to camber mixing active. It is nice to have more lift capability when I pull some elevator, regardless of which flight mode I'm in. Finally, the launch mode has full span camber, typically about 12 to 15 degrees of camber. The differential is set to between 80 and 90%, with as much ail>rud mix as possible. The large differential is because the trailing edge is already set to produce the maximum amount of lift out of the wing. If more downward deflection would produce more lift, then I'd put it in the preset (an oversimplification, but should get the concept across). BTW, I put in the speed/thermal amount of aileron differential in via end point adjustments, and use the differential function to put in the required differential for cruise and launch. One can typically do the above setup methodology on the 9303 with the stock supplied mixes, and you do not have to use any extra free mixes. This is nice because it makes it easier to hunt down the appropriate menu to make changes. Joe Wurts > Date: Wed, 23 Mar 2005 21:37:48 -0500 > From: James R MacLean <[EMAIL PROTECTED]> > > So I have got this nifty new JR9303 radio and a beloved full house > sailplane. I know the plane flies very well and all the servos are set up > etc. The flight program resides in a Futaba transmitter so I am starting > over again pretty much. Neutrals and reversing is a piece of cake but > now I have five flight modes if I want them and all sorts of flexibility > to play with I didn't have before. Here is the question: anyone have a > write up on programming philosophy with this radio addressing useful > tricks or helpful tips? I am thinking something like using the THERMAL > mode to enable camber control on the slider, soften up the control > throws, add a bit of up trim, and remove aileron to rudder coupling. > Butterfly enables only during landing mode and camber is removed. How > would aileron differential or aileron to flap coupling change for SPEED > mode? What is the best method to put in aileron differential - it can be > done with control throw adjustment and/or the aileron differential > program? As you can see the questions can go on and on. Anyone who > really knows this radio and their plane written down some answers? I > have successfully programmed, flight trimmed, and competed with my Image. > It all was fun and the plane (maybe not the pilot!) flew well. I thought > before I went through this again for my other planes, asking for advice > would be a good idea. Thanks to any who respond!! > > Jim MacLean Melbourne, FL RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. 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