Clarification of tail blade control

[Hendo67]

I am confused. I noticed this during my rebuild, and was wondering what the scoop is.
The manual shows the tail hub assembly built as trailing edge control. When it is installed on the tail shaft it is shown as a leading edge control assy. Later in the manual in the TT section is is back to trailing edge with a note that is is supposed to be this way with the TT.
#1 Why the difference (if there is supposed to be)?
#2 I've been flying with trailing edge since my first build and didn't notice any bad characteristics.

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[Brandon Bartolomucci]

I personally chalked it up to just an easier way for the manual to show how everything goes together from an underneath shot. When I actually put the tail assembly on I put the nylock nuts facing towards the boom as the second picture shows.

Maybe someone else can chime in. Hope I'm right though as aesthetics are a nice part of this heli and having the nuts face the boom add to that. =P



Regards,
Brandon Bartolomucci
Sent from my iPhone

[Hendo67]

I flipped the holders around for leading edge control, and now the pushrods "fit" better. I haven't flown it yet, but I'm expecting an improvement.

[Ross Lawton]

Hi,

In the N5C Manual the build of the Tail Hub Assembly is identical, it is just how it is shown in the manual for assembly purposes.

The difference in the leading/trailing edge versions shows is due to the manual showing both Belt Drive and Torque Tube assemblies, with the belt drive it is designed to have leading edge control orientation. With that version of the Torque Tube Design it was designed to have trailing edge control due to the fact the tail rotor would be flipped onto the opposite side of the helicopter.

Hope this helps,
Cheers!
Ross

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[Matt Botos]

Picture one - You are looking at the inside of the tail blade grips and tail hub. This could be illustrated either way but I decided that it makes more sense showing inside view with the nylock nut.
Picture two - This shows the installation on the tail output shaft, this is the critical view. Picture one really does not matter because the assembly can be oriented for leading edge control no matter how you assemble the tail blade grips and tail hub.

The tail blade grips MUST be leading edge control so that you can achieve the correct amount of throw in each direction.

Ross is correct concerning the trailing edge assembly for the TT version of the kit. Please pay no attention to the TT version of the manual. I decided the crown gear was not worth pursuing at the last minute but it still made it into the manual.

Thanks,

Matt

[Hendo67]

Thanks for clearing it up. I know I wasn't the only one to make it wrong- the used airframe I bought to replace my crashed n5 had the tail built wrong too.