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Model Forum / Radio Controlled / Helicopters / May 2004Newbie question about a JR8103
I recently got one of these based upon recommendations. I don't have the heli yet. I have two basic questions: 1) It came with a 9-channel receiver, but the radio is 8 channels. Is that just because they don't make 8-channel receivers? 2) There are a gajillion different ways to customize it. As a newbie, should I just not bother with all that stuff for now? Or are there one or two settings that would be good to customize. Thanks! Patrick > I recently got one of these based upon recommendations. I don't have > the heli yet. I have two basic questions: [quoted text clipped - 9 lines] > > Patrick Don't customize it yet. Save your money for MRBs. > > 2) There are a gajillion different ways to customize it. As a newbie, > > should I just not bother with all that stuff for now? Or are there one [quoted text clipped - 5 lines] > > Don't customize it yet. Save your money for MRBs. Sorry. MRBs? The bits you will break (if you dont - your not trying hard enough) > > > 2) There are a gajillion different ways to customize it. As a newbie, > > > should I just not bother with all that stuff for now? Or are there one [quoted text clipped - 7 lines] > > Sorry. MRBs? > The bits you will break (if you dont - your not trying hard enough) >>>> 2) There are a gajillion different ways to customize it. As a [quoted text clipped - 8 lines] >> >> Sorry. MRBs? Have to be going some to break your Tx.  SignatureDave S, Kuusankoski, Finland. My return address requires modification before use. >> "Patrick Free" <not@nowhere.com> wrote in message >>> says... [quoted text clipped - 5 lines] >>>>> >>>>> Patrick I would put it at more like 2 gajillion, but who's counting.... :-) Customising a radio is cost free, unless you really screw up, and over time you will be able to explore it all, and work out for yourself what works for you. As a quick guide:- you might need travel adjust (ATV) to limit the servo movement at top and bottom ends. This will prevent 'straining' of the servo, trying to push or pull more than is physically possible. Exponential can be applied to the cyclic controls (aileron and elevator channels) and also the tail. This has the effect of softening the responses round the middle of the stick, but still preserves the full response at the extremes (try this on the bench and you will see). You might want to use say 10% 'expo' on each of the 3 controls and then assess the merits in flight. It won't do any harm, unless the heli feels too 'soggy' to be able to respond properly. Throttle and pitch curves are the only other important ones. These have the effect of shaping the way the throttle opens and the pitch changes. The best way to play is to have them set to a straight line, eg 0%,25%,50%,75%,100% and then see how the heli performs. These settings should be the default. For instance if the heli screams its head off in the hover, you can lower the '50%' throttle setting to say 45%, and increase the pitch setting from 50% to 55%. This will slow the engine and still hopefully have the power to lift off. A lot of this you can only discover by pressing buttons and changing things. If you are going to experiment, keep one model memory as the one that works, and another for experimenting. Obviously they can both be set up the same to start with, and then only change the experimental channel. You have other rotary switches and flick switches to use, but they aren't essential just to get you hovering. > I would put it at more like 2 gajillion, but who's counting.... :-) > > Customising a radio is cost free, unless you really screw up, and over time you > will be able to explore it all, and work out for yourself what works for you. > > As a quick guide:- <snip> Thanks, Mike. That is just what I was looking for. Patrick > > > 2) There are a gajillion different ways to customize it. As a newbie, > > > should I just not bother with all that stuff for now? Or are there one [quoted text clipped - 7 lines] > > Sorry. MRBs? Main Rotor Blades:-) SignatureBeav Please note my E-mail address is "beavis dot original at ntlworld dot com" (with the obvious changes) Beavisland now lives at www.beavisoriginal.co.uk > > > > or two settings that would be good to customize. > > > > [quoted text clipped - 7 lines] > > Main Rotor Blades:-) Ah, thanks. That makes sense, but the response to my original question made no sense. I'm not interested in customizing the heli, I am interested in what I should customize on the radio... Patrick > > > > > or two settings that would be good to customize. > > > > > [quoted text clipped - 11 lines] > made no sense. I'm not interested in customizing the heli, I am > interested in what I should customize on the radio... I'm not sure exactly what you mean by customising Pat. If you could let us have a bit more info, maybe a more informative response would be forthcoming. SignatureBeav Please note my E-mail address is "beavis dot original at ntlworld dot com" (with the obvious changes) Beavisland now lives at www.beavisoriginal.co.uk I've got a couple of spare side pipes and some stick on flames that I'm sure with a touch of trimming wil surely fit the tranny in question,all for sale for £13.65 pence(UK of course) heh heh heh > > > > > > or two settings that would be good to customize. > > > > > > [quoted text clipped - 15 lines] > have a bit more info, maybe a more informative response would be > forthcoming. >>>>>> or two settings that would be good to customize. >>>>>> [quoted text clipped - 15 lines] > let us have a bit more info, maybe a more informative response would > be forthcoming. I think he means 'setting up', not customising, unless you 'customise' your TV by adjusting the volume! SignatureDave S, Kuusankoski, Finland. My return address requires modification before use. > >> Ah, thanks. That makes sense, but the response to my original > >> question made no sense. I'm not interested in customizing the heli, [quoted text clipped - 6 lines] > I think he means 'setting up', not customising, unless you 'customise' your > TV by adjusting the volume! Well, for your volume control on your TV, you just turn the dial until it sounds right. But the volume control works the same for everyone who uses the TV. It isn't like I can customize the TV volume control by making 10% of the volume adjustable in the first 25% of the volume control travel, etc. etc. To me, "setting up" implies that there is one right way to set it up. Patrick > > >> Ah, thanks. That makes sense, but the response to my original > > >> question made no sense. I'm not interested in customizing the heli, [quoted text clipped - 12 lines] > making 10% of the volume adjustable in the first 25% of the volume > control travel, etc. etc. Ahhh.... so what you're really looking at doing is what Dave thought, setting up the radio/heli combination to get the "feel" you want. > To me, "setting up" implies that there is one right way to set it up. Well "setting up" IS the term we use when referring to things like adjusting the travel volume on various channels to give "X" amount of throw at the servo for "X" amount of stick movement, but setting up goes much deeper than that. Not only have you got travel volumes (ATV, or EPA) to contend with, but also pitch curves (various), throttle curves (various), pitch range, throttle range, type of throttle response and a whole raft of other "adjustables" to play with (customise) and there are so many variables that there's no "right or wrong" way to set them up, just good and bad ways:-) Actually, the only RIGHT way, is MY way:-)) SignatureBeav Please note my E-mail address is "beavis dot original at ntlworld dot com" (with the obvious changes) Beavisland now lives at www.beavisoriginal.co.uk >>>> Ah, thanks. That makes sense, but the response to my original >>>> question made no sense. I'm not interested in customizing the [quoted text clipped - 16 lines] > > Patrick Not at all, there are many ways to set up a helicopter and most people will have their own way to suit their flying style. It's not a question of 'customising', simply of making adjustments to various parameters until it feels comfortable. SignatureDave S, Kuusankoski, Finland. My return address requires modification before use. > > > > > or two settings that would be good to customize. > > > > > [quoted text clipped - 13 lines] > > Patrick Hi Patrick. What I meant by my original response is this: Save the customizing until you learn to fly the helo. This is for two reasons. One is because you will break things on the helo as you learn to fly and will want the money to to fix it. The other is because as you learn to fly and get used to the aircraft, you will see what it is that you really want and what changes you will want to make for your flying styles. But mostly...enjoy the experience. > I recently got one of these based upon recommendations. I don't have > the heli yet. I have two basic questions: > > 1) It came with a 9-channel receiver, but the radio is 8 channels. Is > that just because they don't make 8-channel receivers? I suspect they gave you one of these so that you may use all eight channels without using a 'Y' lead. In order to use the last channel on most receivers (i have seen), you have to connect the servo AND battery pack to it. So you use a y-lead to get 2 things into 1 input. > 2) There are a gajillion different ways to customize it. As a newbie, > should I just not bother with all that stuff for now? Or are there one > or two settings that would be good to customize. Depending on the heli, you may want to setup the dual rates and/or exponential on cyclic and rudder. Once you get better at flying it then obviously those things can be removed and then you'll probably do some cyclic and/or rudder to throttle mixing so that when you put input to those functions it will increase the throttle and negate the power loss associated with those kinds of inputs. > Thanks! > > Patrick No worries, I hope this helps Andy |
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