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HomeAircraftHelicopterMain Discussion › Flying Backwards
11-02-2004 04:16 AM  13 years agoPost 21
Alistair

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no where land

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G5000T gyro
there's the problem

squigle

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11-02-2004 05:13 AM  13 years agoPost 22
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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Everybody is convincing me that the 5000T is crap, hehe
i might trade (try to trade) my 5000T and some $$ for a 500T over winter. I also dont have a Governore and the GV1 is comming down a lot in price ever since the arrival of the TJ Pro.
Winter = No flying = UPGRADE TIME = $$$$$$

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11-02-2004 06:33 AM  13 years agoPost 23
Alistair

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no where land

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get a 601

squigle

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11-02-2004 12:59 PM  13 years agoPost 24
BarracudaHockey

rrMaster

Jacksonville FL

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Dont know the severity of the binding and I'm not saying this is the problem but around these times when the weather is cold, white lithium grease has a tendancy to gum up and bind things...
No gumming here, its 80 degree's. Last weekend at the field was 78 with 4 knots wind.

Andy
AMA 77227
http://www.jaxrc.com

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11-02-2004 01:13 PM  13 years agoPost 25
playfair

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Rochester, NY

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I didn't see anyone suggest increasing the gyro gain...
Up it a little, and get back out flying- it's not that cold yet!


The sky is our canvas

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11-02-2004 08:20 PM  13 years agoPost 26
Alistair

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no where land

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jr gain is suppose to be high yes?

squigle

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11-02-2004 09:01 PM  13 years agoPost 27
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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I have it set as high as she will go without wagging. Currently its set for 45% at idle-up

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11-02-2004 09:49 PM  13 years agoPost 28
Alistair

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no where land

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oh, i thought they were suppose to be higher than that, but i wouldn't know, i don't fly JR gyros.....

squigle

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11-02-2004 10:27 PM  13 years agoPost 29
HawkNoob

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Pa

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I have it set as high as she will go without wagging. Currently its set for 45% at idle-up
The 10x may be different but I have a 9303 and my gain is 75%. Below 50% HH will turn OFF.

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11-02-2004 10:34 PM  13 years agoPost 30
Kinger

rrElite Veteran

Granville, OH

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Are you sure you are holding the tail well behind the main body of the heli during fast backwards flight? Any variation from straight on can make the gyro work incredibly hard to hold the tail. Learned this myself during this flying season and still work pretty hard at it..........

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11-03-2004 12:07 AM  13 years agoPost 31
korzry

rrApprentice

Fort Collins, CO

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I'm thinking that maybe there is too much resistance on the linkages,
I'd try to loosen up your linkages. A friend of mine resized the ball links so they were very loose (don't interpret as about to fall off). This made for a buttery smooth action on the linkage for very low resistance. I was amazed at how well my 401 held after that. I feel very confident with it in high speed backwards flight now. The servo is tailed mounted with a carbon rod directly between the servo and the tail bellcrank for minimal resistance.

Ryan

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11-03-2004 01:36 AM  13 years agoPost 32
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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I have Just finished take my tail assembly apart. I have a long arm on the servo with the linkage on the very end. i have the sliders well lubed and the rod itself glides very nice even with a slight bend. the problem has been narrowed down to the pitch slider itself.
Somehow the bushing seems to have a very tight fit against the shaft, so much so that there are score marks along the entire travel length of the slider. its very stiff in that one spot. Since i'm taking the time to upgrade over winter, i'm going to be putting on a new heavy duty center hub, along with a new shaft, i will also check the bushing while i'm at it, so with any luck i can have the problem solved. I think i will also upgrade to the 500T gyro, and i MIGHT move the servo to the aft, i will see what happens first with the mods i have planned.

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11-03-2004 02:42 AM  13 years agoPost 33
Mark C

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Houston, TX - USA

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Just to give you an idea on how smooth/free the tail linkage should be, On my Freya, I can take the ball link off of the servo then pick up the heli and lean it foward and backward and the linkage will fall from end to end of the full throw on only the weight of the carbon rod.

On the raptors, the metal rod is not quite as heavy as the carbon rod on the Freya so I can't get it to fall like that but the linkage will still glide back and forth with no resistance.
Are you sure you are holding the tail well behind the main body of the heli during fast backwards flight? Any variation from straight on can make the gyro work incredibly hard to hold the tail. Learned this myself during this flying season and still work pretty hard at it..........
What Kinger said a few posts ago rings true for me also. I really notice it when I fly it backwards across the sky in front of me vs. flying it backwards toward me where it's easy to line the tail up perfectly looking down the back of the heli. When flying circuits, I get a chance to line up the tail as the heli comes out of the corner and if I keep it steady as it crosses in front of me it seems to hold pretty good. When I fly it in large ovals out in front of me I never get the cance to see the tail lined up perfectly with the body and that's when I have hardest time.

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11-03-2004 03:04 AM  13 years agoPost 34
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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Wow, right now mine is no where NEAR that smooth. Thanks for the imput guys, now i know what my goal is. I'll do what ever i can to reduce any resistance.

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11-03-2004 04:07 AM  13 years agoPost 35
Alistair

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no where land

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how not smooth is it?

also, having the wrong spacing in the tail grips(shims) will 'cause the tail not to hold... i just went through that.....

squigle

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11-03-2004 04:15 AM  13 years agoPost 36
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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smooth.....it looks like someone took maybe 300 grit sand paper and scratched the hell out of it.
i also done use shims, the Rotor Tech tail blades i use fit like a glove.
i have been told that the bushing used is of the Oilite type, and by not cleaning it, any extra oil will mess up the bushing and make it gummy.
i have sinced made sure its clean, but no effect.
i will disassemble the leveres and clean out the bushing, maybe there are contaminants that are stuck inside which is making a mess of the shaft.

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11-03-2004 04:40 AM  13 years agoPost 37
Alistair

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no where land

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i also done use shims, the Rotor Tech tail blades i use fit like a glove.
sorry.... i meant shims that go inbetween the thrust bearings and nylocks...

use tri-flow to loosen it up...

squigle

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11-03-2004 04:51 AM  13 years agoPost 38
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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Ah, They shouldn't be the wrong ones, i just finished putting fresh bearing greese on the thrust bearings, and according to the Vigor CS manual everything is the way it should be in terms of shims.
I also just finished polishing the shaft, its much smoother now. There still seems to be some resistance, but no where near what it was, it doesn't seem to stick in one spot anymore or nothing.

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11-03-2004 04:58 AM  13 years agoPost 39
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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I just found out the resistance is actually from the ball links. i disconnected them and the pitch slider now moves like silk. does this mean the links need to be re-sized?

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11-03-2004 05:11 AM  13 years agoPost 40
Alistair

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no where land

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you could.... just do it slightly slightly though...

squigle

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