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HomeAircraftHelicopterHIROBOOther › Started servo install
04-01-2005 05:40 PM  13 years agoPost 1
joeskeeter

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South Georgia

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The servo horn on the ds811 servo is very close almost touching the tray on the evo 50, I'm using it for the throttle.
I have to move the servo out a little or what?
Is there a site to show step by step radio setup on the jr 8103.
I got the air heli version, almost wish I didn't get this one now.
Kind of bogged down now have setup sort of, the aileron with 9202, so I'll have to put reverse direction on that servo?
Thanks all for help so far, been a while but getting close to fling I hope!

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04-02-2005 12:30 AM  13 years agoPost 2
Al Magaloff

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12,199 Posts- Enough Time Wasted. See Ya!

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Joel, go to the local hobby shop, and buy Dubro HD servo arms for JR. They are spaced off the servo further. You can also use Raptor servo hold down plates as servo spacers, to raise the servo slightly. If you need help, just yell.

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04-02-2005 01:47 AM  13 years agoPost 3
Leif

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USA

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Joel

You don't need push-pulls on the throttle if you're trying this. Use a single arm, which should be postitioned pointed up at neutral. If you try to use push-pull on the throttle, you'll run into two problems:

1. The lower half of the servo arm will hit the radio tray.
2. The lower half of the throttle arm will hit the muffler or muffler nut/bolt.

Since the throttle requires very little torque, its easiest just to use one link.

Leif

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04-02-2005 03:48 AM  13 years agoPost 4
dkshema

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Cedar Rapids, IA

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The 8103 is a very good radio. I'm using one for my EVO, Freya, two Trex's, and two Caliber 30's.

Setup is easy and straight forward. I 'm using DS811's for the cyclic, pitch, and throttle on my EVO, and a 401/9254 on the tail.

There is no reason for pull-pull on the throttle rod.

I didn't have to do anything magic or out of the ordinary to get the servos to fit, for the arms to have good clearance, and get the proper geometry for the pushrods.

Dave

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04-03-2005 05:58 AM  13 years agoPost 5
joeskeeter

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South Georgia

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Got the servos in and linkages done this evening.
Will look at manual during the day tommorow.
So for the cyclic, you have to assign aux 1 to the left stick.
Noticed the landing gear switch moves the servo to one position or other, so can't use that one.

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04-03-2005 08:49 AM  13 years agoPost 6
RCfun

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Denmark

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I have an OS50 Hyper in mine and a zimmermann muffler. Plenty of room for push-pull if. I had to file the servo tray down somewhat to make room for the screw on the lower ball.

I know PP on throttle is not necessary but it adds a bit of backup should one link pop out (in a crash for example). Also it looks nice.

RCfun

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04-03-2005 08:59 AM  13 years agoPost 7
Al Magaloff

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Joel, collective is left stick, cyclic is right stick. Collective( pitch servo) plugs into the 6th spot in the JR receiver ( AUX1).

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04-04-2005 03:23 AM  13 years agoPost 8
joeskeeter

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South Georgia

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Well I got the wrong radio, guy at hobby shop said the 8103 air version
is fine for helis.
Anybody got a new 8103 heli they wan't to trade for a new 8103 air version?
Taken me so long to get to this point, that I probably can't return the damn thing either.

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04-04-2005 04:04 AM  13 years agoPost 9
John Krebs

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Pittsburgh, PA

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I would try and return it and make a big stink about it too. Their recommendation was wrong and they should make right. You could have skipped the LHS and bought in on-line. I would point out that fact also.

John

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04-04-2005 04:17 AM  13 years agoPost 10
jkelly

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Bedford, PA

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Joel,
Does the 8103 come in a plank only and heli only version? I assume it can do the 3 basic types of aircraft. I don't use JR but in Futaba you have to select the type of model (e.g. acro-plank, glider, heli). The radio is the same (except for a couple of toggle switches) however the default programming is for the version you purchase. You also have to make sure you use the correct mode. Most here in the US use mode 2. I'm not sure about the 8103, hope it works out.

Mode 2:

Left stick up/down = throttle
Left stick left/right = rudder
Right stick up/down = elevator
Right stick left/right = aileron

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04-04-2005 05:16 AM  13 years agoPost 11
dkshema

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Cedar Rapids, IA

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The 8103 comes in an airplane and a heli version. Each can be programmed for aircraft, helis, or gliders.

The differences are:

The heli version ships with a 1000 mah RX battery, the airplane with a 600 mah RX battery.

The heli version has a charger that pumps out more current for the RX side than the TX side when compared to the airplane version charger.

The transmitters are different with regard to the location of knobs and switches, as well as their markings on the faceplates. If you set up an airplane version for heli use, things will be in different places switch and knob wise with respect to the heli version of the radio.

It's unclear from the user's manual I have if the airplane version comes set up to do eCCPM swash mixing. I have an addendum to my Heli version (about a year old, now) that tells me the heli version was upgraded to include eCCPM swash mix functions. It gives the impression that the airplane version doesn't include this programming feature. I get the impression that the airplane version doesn't support eCCPM, though I could be mistaken.

In addition to the location of certain knobs and switches being different, the airplane version has a small red "A" within a square next to the "8103" on the face plate and the heli version has a small "H" within the sqaure next to the "8103" on the face plate.

I'd see if the LHS guy will swap you out for a heli version. He might use an airplane version in HIS heli, but what does he do with his heli?

Dave

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04-04-2005 10:38 PM  13 years agoPost 12
joeskeeter

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South Georgia

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When I finally got it to heli mode and figured out how to get it out of F mode alarm( used scientific method ie: just pressed alot of buttons and
moved switches around reset etc. )
I got the servos to work,
Then connected servos and have the below assignments.

Left stick up/down = throttle
Left stick left/right = rudder
Right stick up/down = elevator
Right stick left/right = aileron

As dystema pointed out and Al, the switches are
there but in different locations and labeled differently.
Not good for newbie like me, even though I am
starting to figure out the radio.
I'll check the shop around the end of the week after
I have cooled off a little, to see if he'll swap it out.
If not then maybe someone will trade or I can sell it and get the heli.
i think it's easier to have it just go on in heli, and have the luxury
of the buttons being labled.

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