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04-06-2013 09:40 AM  6 years ago
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crowe04

rrNovice

Australia

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JR NEX E6
Hi All,

I have been modelling for over 40 yrs but I'm new to heli's. I have an issue with my NEX E6 (using the TAGS01 gyro system) which I have just completed building, it went together very well and is set up exactly as per the manual. The issue is that when I start the heli up to just get the weight off the skids (training undercarriage is fitted to the model) and I apply a very small amount of forward cyclic the model wants to roll to the left. Likewise when a very small amount of aft cyclic is applied the model wants to roll to the right. Now I fully understand the basics behind gyroscopic precession and how it applies to helicopters but as the controls on this model are functioning in the correct sense (as per the manual) it has me baffled as to why I'm getting the response that I am.
Could it be that the training undercarriage is affecting it?
Is it also possible that the model needs to be out of ground effect for full and true control response?
As I mentioned earlier, I'm new to heli's and any help would be greatly appreciated.
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04-08-2013 05:36 PM  6 years ago
spike5150

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Castle Rock, CO

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You are correct that the training gear is affecting it. the biggest difference between Flybar and FBLess is that on FBL you need to get off the ground relatively quickly to avoid vibrations induced from being on the ground from affecting the FBL control loop.

I would really recommend switching to an inexpensive flybar head system and tail gyro until you can hover comfortably in all upright orientations. you did yourself a favor by starting with a bigger heli, though as it will be much more stable and easier to see and maintain orientation once you get into forward flight.

Jeremy
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