H9 1.20 Ultra Stick?
11-20-2002, 03:21 PM
#1
H9 1.20 Ultra Stick?
I am intriqued by this model. You can get one for a pretty reasonable (cheap) price. I am not real happy about the single push-pull rudder and elevator on these things. I would be interested in hearing from anyone that may have split the elevator and put a pull-pull on the rudder. How it worked out etc, etc. thanks.
11-20-2002, 04:42 PM
#2
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H9 1.20 Ultra Stick?
I'm just finishing building one for a friend. Hopefully I can take it for a test flight today. I built it exact to the manual so hopefully no problems will occur.
I had a brand new SuperTigre 2300 laying around so I mounted it on the US. I think it will supply enough power
This arf is nicely built. The wood and covering is good and it is very solid.
We picked it up from great hobbies in Canada and they told us these were discontinued , Hangar9 has stopped production on them.. Hmmm wonder why? I find it hard to believe they would drop a proven and popular airplane like the stick.
I had a brand new SuperTigre 2300 laying around so I mounted it on the US. I think it will supply enough power
This arf is nicely built. The wood and covering is good and it is very solid.
We picked it up from great hobbies in Canada and they told us these were discontinued , Hangar9 has stopped production on them.. Hmmm wonder why? I find it hard to believe they would drop a proven and popular airplane like the stick.
11-20-2002, 05:31 PM
#3
H9 1.20 Ultra Stick?
RVD, unfortunately that is how H9 does business. They have a terrible habit habit of developing a great plane and then discontinuing it. Has been discussed many times in this forum. Their model lines seem to have about a two year run. They just discontinued the 1/4 scale cap, then the 1.20 Ultra, and now the 1/4 scale Edge. Go figure.
11-21-2002, 12:23 AM
#4
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U-Stick
I put the rudder servo on top of the fuselage just ahead of the verticle stab with a pull-pull setup, a single elevator servo on the right side of the fuse just ahead of the horizontal stab using a 4-40 threaded rod for a pushrod. I did use a .25 inch dia. aluminum tube over the rod to stiffen it. A single elevator servo is adequate unless you are looking for some redundency with the elevator. The stock pushrod setup looked like a pain to install with the y arrangement so I opted to install the servos in the tail. With a G23 it needed the weight back there anyway. Great flyer and still going strong after three seasons.
11-21-2002, 01:06 AM
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H9 1.20 Ultra Stick?
Here is what I did pull pull on rudder with servo in the tray (Hitec 615mg) and single elevator servo (Hitec 615mg) for elevator works fine.
Ron
Ron
11-21-2002, 01:42 AM
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Super Ultra Stick
Heres one I built at the beginning of the year for a client. Pull Pull Rudder with H9 Arm, double beveled elevator and rudder for 3D rate, tail mounted elevator servo, CF landing gear, extended Haighes style tailgear for tail-touching and a few other things... 
11-21-2002, 01:47 AM
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H9 1.20 Ultra Stick?
I'm building another one that I'm going to sell that has all of the above mods, plus more upgrades over my last one.
I made a carbon fiber servo tray, and moved it forward 5", double beveled all control surfaces and made a counterbalance on the rudder and elevator, Kevlar Pull pull, CF landing gear and tailgear, reinforced everything with Aeropoxy, and more stuff to keep the weight down...
I made a carbon fiber servo tray, and moved it forward 5", double beveled all control surfaces and made a counterbalance on the rudder and elevator, Kevlar Pull pull, CF landing gear and tailgear, reinforced everything with Aeropoxy, and more stuff to keep the weight down...
11-21-2002, 02:47 AM
#9
H9 1.20 Ultra Stick?
Has no one split the elevator and used dual servos , a bellcrank or run a Y to the elevator. Has no one had a problem with that thin little connection between the two elevator halfs? I did notice that it appears the rear of the fuselage is very narrow - perhaps this is why no one has dual servoed it.
11-21-2002, 06:45 PM
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H9 1.20 Ultra Stick?
No need to run dual servos. A good high torque servo will easily handle both sides. And the "little connection" is 5" of heavy spruce spliced to the elevator LE, its not going anywhere. Never had a problem.
11-21-2002, 08:24 PM
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H9 1.20 Ultra Stick?
Originally posted by Splais
Has no one split the elevator and used dual servos , a bellcrank or run a Y to the elevator. Has no one had a problem with that thin little connection between the two elevator halfs? I did notice that it appears the rear of the fuselage is very narrow - perhaps this is why no one has dual servoed it.
Has no one split the elevator and used dual servos , a bellcrank or run a Y to the elevator. Has no one had a problem with that thin little connection between the two elevator halfs? I did notice that it appears the rear of the fuselage is very narrow - perhaps this is why no one has dual servoed it.
IMHO, two standard BB servos are cheaper and safer than one high torque servo.
11-21-2002, 11:13 PM
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dual elevator servos
I have a couple planes with dual elevator servos. THe problem I have with them is getting two servos that are evenly matched. I have found that 2 servos that are supossed to be the same will usually not track evenly.
Ron
Ron
11-22-2002, 12:13 AM
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H9 1.20 Ultra Stick?
If thats the case, instead of using a Y harness, slave one elevator servo to the other on an auxilary channel. (on my JR 8103, I use aux 3 on the rx) In your radio, inhibit the Aux. 3 POT. On JR, use mixes 5, or 6, so you will keep the use of your trim. You can now adjust travel, center, subtrim, and expo.
If your servos are not matching in between the center/endpoints, then you'll need to look around your shop for some closely matching servos.
Hope this helps.
If your servos are not matching in between the center/endpoints, then you'll need to look around your shop for some closely matching servos.
Hope this helps.
11-22-2002, 12:50 AM
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H9 1.20 Ultra Stick?
Here's the review I did on my Ultra Stick some time ago...
http://www.fubarhill.com/ustick.htm
Worked fine for me...
http://www.fubarhill.com/ustick.htm
Worked fine for me...
11-22-2002, 03:24 AM
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eliminate the stick and the x-tra servo
11-22-2002, 03:46 AM
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H9 1.20 Ultra Stick?
Splais, it's my own creation, but it's not hard to do. I used a couple of nosegear blocks, 5/16" music wire, nosegear steering arms, 2-56 rods and supplied horns/clevises. I've posted a thread. Search for "U-STICK can HOVER" and check out mods...Steve
11-22-2002, 03:21 PM
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H9 1.20 Ultra Stick?
I use a Futaba and a Hitec servo so that the two will swing in opposite direction. I have not found any dscernable difference in the way the two servos travels. Most of the discrepencies were in the mechanical linkages and can easily be adjusted out.
For me, the dual servos are there for safety and redundancy more than anything. If one servo fails, more than likely the other will help land the plane safely. Short of the single-servo single-elevator setup, the dual servo system is actually the simplest system. It also has the added advantage of being able to use aileron-> elevator mixing for even tighter rolls.
Really though, in the end, it is to each his own.
For me, the dual servos are there for safety and redundancy more than anything. If one servo fails, more than likely the other will help land the plane safely. Short of the single-servo single-elevator setup, the dual servo system is actually the simplest system. It also has the added advantage of being able to use aileron-> elevator mixing for even tighter rolls.
Really though, in the end, it is to each his own.
