Maj. Woody's Ultra Flash
05-15-2018, 05:01 PM
#688
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05-17-2018, 07:22 AM
#693
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Join Date: Mar 2005
Location: Mission Viejo, CA
Posts: 171
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Hi Maj,
I have really screwed up the rudder servo install not knowing how to accurately cut the slot in the fin, ended with big rectangular cutout which is ugly and now need to figure out how to best cover? Also the standard plastic servo arms do not extend out enough, and can't use metal servo arms since screw and nuts will not allow full movement, on top of that no where in the manual it shows the best way to locate and make the slot, and not even a word about how much rudder travel is standard, just says max. Can you provide me some feedback on what rudder setup, servo arms, sulivan links or ???
any ideas on how to fix my big ugly open slot?
Tx
jason
I have really screwed up the rudder servo install not knowing how to accurately cut the slot in the fin, ended with big rectangular cutout which is ugly and now need to figure out how to best cover? Also the standard plastic servo arms do not extend out enough, and can't use metal servo arms since screw and nuts will not allow full movement, on top of that no where in the manual it shows the best way to locate and make the slot, and not even a word about how much rudder travel is standard, just says max. Can you provide me some feedback on what rudder setup, servo arms, sulivan links or ???
any ideas on how to fix my big ugly open slot?
Tx
jason
05-17-2018, 10:23 AM
#694
Hinges were cracking along hinge line allowing up and down movement at the hinge line such that the skin on the top of the stab was starting to rip forward. Also, you could see a lamp light thru the hinge lines for a at least an inch on both ends of one elevator and on one end of the other. According to CARF, possibly could use thin CA to stop the tearing. But the thru cracks on the hinge indicated that the stab needed to be replaced.
To much speed involved to risk flutter and a resulting crash. Better to drop $300 on a new stab. Bought two, figuring this may be a recurring problem.
To much speed involved to risk flutter and a resulting crash. Better to drop $300 on a new stab. Bought two, figuring this may be a recurring problem.
05-17-2018, 11:42 AM
#695
Join Date: Oct 2005
Location: Lumberton,
TX
Posts: 318
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Hi Maj,
I have really screwed up the rudder servo install not knowing how to accurately cut the slot in the fin, ended with big rectangular cutout which is ugly and now need to figure out how to best cover? Also the standard plastic servo arms do not extend out enough, and can't use metal servo arms since screw and nuts will not allow full movement, on top of that no where in the manual it shows the best way to locate and make the slot, and not even a word about how much rudder travel is standard, just says max. Can you provide me some feedback on what rudder setup, servo arms, sulivan links or ???
any ideas on how to fix my big ugly open slot?
Tx
jason
I have really screwed up the rudder servo install not knowing how to accurately cut the slot in the fin, ended with big rectangular cutout which is ugly and now need to figure out how to best cover? Also the standard plastic servo arms do not extend out enough, and can't use metal servo arms since screw and nuts will not allow full movement, on top of that no where in the manual it shows the best way to locate and make the slot, and not even a word about how much rudder travel is standard, just says max. Can you provide me some feedback on what rudder setup, servo arms, sulivan links or ???
any ideas on how to fix my big ugly open slot?
Tx
jason
To get a proper opening takes time and patients with a dremel tool. What I did was test fit the servo with the arm on but parallel with the fuse. Once in place I moved the arm out until it touched the inside wall. I then used and ultra bright light shined on the inside of fuse so I can see from the outside basically where the arm is at and mark on the outside appropriately. Then just take your time with the dremel making the line horizontal with the fuselage as possible.
Theres many ways to fix or hide the accident. There's a cover that came with the kit, is your hole too big for that to hide it?
05-19-2018, 01:36 PM
#699
My aggressor Flash uses JR 8411 servos with JR Heavy Duty Servo Arms. The Fly Navy Flash uses Futaba 9156 Servos with Aluminum Servo Arms. The included Clevises were too sloppy for the thinner Futaba arms and although I could have shimmed them, I chose to use Sullivan 4-40 Golden Clevises. In order to use those, I had to use 4-40 rod instead of the included 3mm Rod. What I did was use Sullivan Stainless Steel 4-40 rod with KS Brass tube Silver soldered over the top. The 4-40 rod was threaded into the plastic ball link and then removed, coated with Epoxy, the ball link hole filled with epoxy and then screwed back together. Then whole assembly is rock solid. My only concern is that the hole in the ball link was a bit large for the 4-40 rod when you consider the pilot hole for a 4-40 thread should be made with a #43 drill. I have performed multiple testes to pull the 4-40 rod out of the ball link and I cant. I have even began to deform the metal ball link trying. The final painted product has a nice finished look.
05-19-2018, 01:39 PM
#700
Those QA stickers are a joke! No I did not Contact CARF. I waited so long for the first kit which was smashed by DHL, waited even loger for the replacement and could wait no more. I have to wonder how much better the first kit may have been. Of course it could have been worse. Any way, I have it looking good now.