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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › 700 Super Scale Tail Gear Noise!!!!!!
01-24-2016 06:49 AM  3 years ago
Tool Man Vegas

rrApprentice

Las Vegas, Nevada, U.S.A

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I was able to pull off that mod tonite with parts from other helis.
It would not fit back in the cobra. The arms hit the body.
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01-24-2016 04:41 PM  3 years ago
TailKiller

rrApprentice

Panama City, FL

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Wow.. that stinks.. It's hard enough working on any of the Cobra's. There's just no working room in the fuse. How did you do it?Dennis
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01-24-2016 08:11 PM  3 years ago
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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oh yes, cobras are just so narrow I didn't think about that. I know I had to strategically locate things for my cobra to get things to fit,drive a rotary, fly a rotorcraft
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01-24-2016 08:38 PM  3 years ago
Tool Man Vegas

rrApprentice

Las Vegas, Nevada, U.S.A

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I found the hirobo sdx 5mm shaft for the same function was about 2mm to short to work. It was long enough for me to at least see if hunting for the right shaft would be worth it. Lucky I did. For any roban application it would be a no brainer for me to do. The geometery way way better. I would think any easy way would be with a longer 5mm shaft. A couple colars on each side and a little imagination with brass spacers and shims would make it happen.
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01-24-2016 10:16 PM  3 years ago
TailKiller

rrApprentice

Panama City, FL

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Well there are a lot of pilots flying these mechs with no mods and they are flying fine.. so I guess we'll add me to the ranks. It's an odd swash linkage setup that we are not use too but it works. I'm not going to change it.Dennis
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01-24-2016 11:13 PM  3 years ago
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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good point made.drive a rotary, fly a rotorcraft
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01-25-2016 03:15 AM  3 years ago
Tool Man Vegas

rrApprentice

Las Vegas, Nevada, U.S.A

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I have read a bunch of good stuff about the mechanics. Im not worried about using the original setup.
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01-25-2016 04:28 AM  3 years ago
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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I wouldn't be. all the mods I did was for personal preference including the clutch which for me is a must. the other changes I did was cosmetic things I couldn't live with like the rotorhead height, that had to be changed. I also changed the blades for heavier more scale looking ones as the originals didn't look the part for an A-star and the ones I chose fly well without assistance.drive a rotary, fly a rotorcraft
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01-25-2016 07:13 PM  3 years ago
TailKiller

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Panama City, FL

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Well it looks like I just hit a snag... My sevos.. I have installed futaba s9255's on the cyclic and a s9254 on the tail.... I just found out that they are rated for 4.8v and for use with Nicad battery only... I have a Naza on this bird and the naza bec lowest voltage is 5.8 and I'm using lipos. I just I should not fly these servo's?????? Any thoughts?Dennis
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01-27-2016 01:25 AM  3 years ago
TailKiller

rrApprentice

Panama City, FL

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Oh well... guess I'll just get a cc bec pro.. That will solve the issue.. Dahh..Dennis
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01-27-2016 01:48 PM  3 years ago
Grimracer

rrVeteran

Eau Claire WI

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yep.. A futaba or CC BEC.. (10 amp).. you will be good to go.

Grim
Michael J Zaborowski
Futaba USA
AMA 124909
IRCHA 5453
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01-31-2016 02:30 AM  3 years ago
TailKiller

rrApprentice

Panama City, FL

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I learned something today about nominal servo input voltage. The futaba s9255 nominal voltage is 4.8. If it is feed only 4.8v then it will more than likely shutdown during operation because of low voltage. While in flight the servo will pull more then 4.8v to carry out commands given.. If it needs 5.2v to maintain function during flight but is only given 4.8v.. then the servo will reboot.. which equates to CRASH. The s9255 should be able to handle the 5.8v that the Naza bec is supplying without issue.. But I'm going to try a Hercules bec at 5.2v first. I would be happier with 5.4v but Im not going to buy any more bec's just yet.Dennis
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HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › 700 Super Scale Tail Gear Noise!!!!!!
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