6HV Vids and Pics

[Cullen Colapietro]

Thanks for sharing Caleb, one of my favorite events! Sad to miss it this year. Very nice flying as always...

[sarpilot]

Originally Posted by sarpilot

Here you can clearly see the damaged washers by manufacturer upon assembly. I am hoping replacing these washers is the cure until I can buy new metal tail........

Well more tail drama. Just bench ran it for 6 minutes, everything looks pretty good BUT…
When I give rudder input the whole tail gear and shaft follows the command. Ideally I would expect the gear to remain centered and not move but there is maybe 1/3 mm play on both sides of gear you can move it back and forth with a screwdriver. I thought maybe one of the thrust washers might be missing but 82-5808 and 82-5804 are both correctly installed on both sides. 61-5134 is correctly installed on both sides. I just tried to move my 7HV tailcase gear and it appears to be correct with 0 lateral thrust.
6HV has been this way since I got it as has this tail kick I get as well. Is this amount of play normal in the tailcase or do I need to tear it apart and shim the play out to achieve 0 thrust?
Thx


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[Bob O]

sar,

Mine doesn't have any play at all. I have one brass and one silver washer/shim on each side of the pulley. You should shim out the play for sure. If an extra washer makes it too tight, then maybe substitute different types of washers being they have a different thickness.

Let us know how this turns out.

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[sarpilot]

Originally Posted by Bob O

sar,

Mine doesn't have any play at all. I have one brass and one silver washer/shim on each side of the pulley. You should shim out the play for sure. If an extra washer makes it too tight, then maybe substitute different types of washers being they have a different thickness.

Let us know how this turns out.

Sent from my phone

Thx for the reply… this is beginning to look like the solution cause that much freeplay is easily a few degrees of uncommanded pitch… 2 years almost trying to fix this …
:banghead:

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[sarpilot]

Well digging through everything I have trying to find something to make like a .7mm tailcase shim and tada I found this, perfect fit on tailshaft. Slightly modified looks like the thickness will be close may have to dremel some off....


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[Bob O]

Just make sure it doesn't contact both races of the tail case bearing. Unless you're going to use that one up against the pulley only.

Hope it works!

:fingerscrossed:

[sarpilot]

And all nice and shiny! Nice soft copper under the plating. Now to get home and bash it in there with the trusty ballpeen…

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[sarpilot]

Originally Posted by Bob O

Just make sure it doesn't contact both races of the tail case bearing. Unless you're going to use that one up against the pulley only.

Hope it works!

:fingerscrossed:

Will do… I am thinking just shim against the left side case bearing for ease in installation…

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[Bob O]

Sounds like a good plan, this way you don't have to actually "disassemble" anything.

[sarpilot]

Ok here is update shot crummy phone pic but… I yanked the thin spacer and substituted my fabricated one and :bang
0 thrust belt looks perfect into boom fixing to bench test in a few. This is the stuff that keeps me excited about model helis the constant learning although I feel somewhat stupid that I didn't catch this float in the gearbox until now.....

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[Ah Clem]

Nicely done Tom!

In another application (shimming reproduction standard gauge motor wheels), I have been able to find RC car shim washers that fit. Usually these have a fairly thin pattern. It's just a matter of finding the correct diameter.

I would think there are some that would fit the tail shaft.

Let us know how it works out, sir!

[sarpilot]

Ty sir yes I am pleased with the fabrication hoping this is the cure at last. Still hoping to see a pic of that locomotive collection…
Best regards,
Tom

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[sarpilot]

Well 6 min run now I am as happy as I could be with bench testing. Will chunk heli in car maybe I can sneak some flight testing in am…

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[Bob O]

Good luck! And don't forget to put that one screw in the very back of the left side tail case.

[sarpilot]

Originally Posted by Bob O

Good luck! And don't forget to put that one screw in the very back of the left side tail case.

Thx ya it was just mocked up for photos and to check for thrust they are all locktited and back in.... thx guys

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[Lojik]

Got my 6HV today

[RodneyK]

[ragge1]

nice Lojik , but did you cut your motor wires , looks kind of short to me

[Bob O]

Mine came short like that.

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[ragge1]

that must be a pain in the #¤& when soldering and instaling it
here how mine looks like , long cables