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HelicopterCentury Radikal G20-30 N640 Hawk Predator › Predator Frame Question
01-27-2007 03:09 AM  10 years agoPost 1
capman231

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Leicester, NC - USA

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Has anyone ever used the carbon upper frames on the 60/70SE with the aluminum lower frames???I would like to put the upper carbon frames on my Predator to utilize the Push/Pull elevator setup and by using the carbon frames there shouldn't be any issues with linkage geometry or rubbing ball links...

capman231

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01-27-2007 01:11 PM  10 years agoPost 2
Ts8103

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Baltimore, Maryland

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I haven't used them but all of the Predators share the same top frame. It should be a direct retrofit.
Tone

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01-27-2007 01:39 PM  10 years agoPost 3
SteveH

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Texas

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Howard,
The only issues of rubbing ball links are on the aileron and collective servos, and then only if you put the balls on the back side of the servo arms, which I do and have no troubles when I use the smaller Century links and JR servos. Additionally, the geometry is no different on these servos from aluminum to carbon frames, so with respect to the rubbing ball links, there is nothing to gain by going to carbon frames. However, if you feel you need/want the push/pull on the elevator, that is a horse of another color.

The government cannot give you anything without first taking it from someone else.

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01-27-2007 03:21 PM  10 years agoPost 4
capman231

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Leicester, NC - USA

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Hi Steveh,

The elevator push/pull was what prompted the frame question and after thinking about it and the additional money to install it, in your opinion is it a worth while upgrade???

capman231

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01-27-2007 03:58 PM  10 years agoPost 5
Ts8103

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Baltimore, Maryland

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If you just want to go push/pull for the elevator use this http://www.heli-world.com/detail.aspx?ID=3301
it is much cheaper than carbon upper frames and does well. I used it on my Pred and it does well. Considering that the other control linkages are push/pull I think it is a worth while upgrade. If nothing else it will help the servos to wear evenly.
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01-27-2007 04:15 PM  10 years agoPost 6
capman231

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Leicester, NC - USA

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Hi Ts,

Did you use the standard Predator ball links on your Heli or did you use the thinner links like the Hawk and Raven use???Did you have any trouble with the links rubbing on the servos when installed like the manual shows???

capman231

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01-27-2007 04:25 PM  10 years agoPost 7
SteveH

rrProfessor

Texas

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Howard,

When I first started flying my Predator SE Glow, it was the aluminum framed version without the P/P on the elevator, but I did use one of the JR center post braces on that servo. I flew it for a couple of years with JR8101 servos, and then converted it to JR8311's. Later, when I converted it to the carbon frames with P/P on elevator, to be honest, I could not tell the difference with either of the two upgrades. However, that's not to say a better pilot would not have.

The government cannot give you anything without first taking it from someone else.

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01-27-2007 09:03 PM  10 years agoPost 8
Rodney

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St.Cloud,Florida

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Get the Freestyle conversion parts and you can install the servos inside the frame like I have always done. The links are inline with the bellcranks and there is no issue of them hitting servos with HD links on them. If you run 9252's you can do the same with the standard frame parts as well. Inside the frames back to back.
The push pull works well, but is a pain to setup. Make sure that there is no binding on the links from full travel in both directions. It will wear out a servo really fast.

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01-28-2007 02:23 AM  10 years agoPost 9
Ts8103

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Baltimore, Maryland

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Capman, I am using the heavy duty Predator links and do not have any binding. When you set up the push/pull remember the top link is closer to the center of the servo horn than the bottom.
Tone

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HelicopterCentury Radikal G20-30 N640 Hawk Predator › Predator Frame Question
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