Most Gear Striped Location

[OnTheSnap]

...

[Slyster]

Originally Posted by OnTheSnap

You _really_ think that sticky solves all the problems?

The info in the sticky will help most pilots. I don't fly that hard but I was stripping front gears every few flights until I found out my front TT gears had a LOT of play... and after sanding the block (instructions in the sticky) I've never stripped one since.

[the_wuth]

Originally Posted by Slyster

So did mine.. before I fixed them. See the sticky the_wuth.

Thank Slyster, I did.

[the_wuth]

well well well .........

I had first flight with modified of a tail rotor and total 8 flights of my F50 for last weekend. I fell smoothly and perfect.

One observe, Tail Gain Stop A and B on V Bar 5.2 pro are unequal which I mentioned before the tail rotor shaft a little shorter I not sure whether this is effected to V Bar value or not.

Anyhow, I happy for my F50 reborn

[Discount_Bob]

OTS: Are there other issues that need to be addressed, or are you just generally referring to the fact that other random issues can occur?

[the_wuth]

Originally Posted by Discount_Bob

OTS: Are there other issues that need to be addressed, or are you just generally referring to the fact that other random issues can occur?

All issues from my experience with F50,

- Gear strips too easy, this is serious case for me due to I never founded before for other helis.
- Elevator arm broken during constituted due to tighten the nut.
- Ball bearing flanged attached frame for control rod of elevator set moved after a few months.I put an epoxy glue to fixed.
- Tail case twisted, I just pin it by bolt.
- Tail rotor set / plastic grip link broken, I need to purchased an Aluminum Tail pitch slider set just only for 1 no. of small plastic grip link due to no separate part for sell. Therefore, please don't make it broken.
- Rust on your link........

By the way, I much like behavior of F50 it's easy to control.
Fly by hope with Fusion 50....

[xfactor6]

is there a gap between the bearing and the shaft? see pic

[the_wuth]

Originally Posted by xfactor6

is there a gap between the bearing and the shaft? see pic

Ops ! Thank for you observed, I just saw right now.

OK, I must put shim spacer and should be from Trex 450 PRO main shaft.

[ke6d]

Originally Posted by the_wuth

Ops ! Thank for you observed, I just saw right now.

OK, I must put shim spacer and should be from Trex 450 PRO main shaft.

I thought you were supposed to put a shim between the end of the shaft and the crown gear (on the left side of your picture) so that the 2 crown gears would mesh better. The gap that xfactor pointed out should not have anything to do with the shim.

[OnTheSnap]

Originally Posted by Discount_Bob

OTS: Are there other issues that need to be addressed, or are you just generally referring to the fact that other random issues can occur?

Every mechanical system has its limits. I've found that running 2300 RPM is right at that limit. First are the tail grip bolts. At 2.5mm they are not designed for the loading at 2300RPM in my experience. Second, at 2300 RPM, the tail spins 450 RPM faster than the intended design at 2200 RPM. This is substantially more force on the tail gears. Doing a lot of hard reversals at this RPM wears the tail gears really quickly. So I've found that they need to be replace at about 10 flights.

It's worth noting that the Fusion directly inherited it's gearing system from the Velocity which was spec'd for 2100RPM max. Insane headspeeds and power can quickly overcome the stock setup, so you need to be vigilant if you want to push the machine hard.

I have looked at many Fusions for beginner/intermediate/advanced pilots, and when they fly in dusty conditions (off dirt) I see unusually fast wear on the tail gears. So flying off of dirt has for sure caused many early failures. If you fly off dirt, check the gears every day and replace immediately if there is more than a tiny bit of gear lash.

Also note that with a little dremeling you can fit on a QuickUK or Align tail hub/grips. These come equipped with 3mm bolts and are much more tolerant to abuse and can handle higher RPMs without failure.

[Discount_Bob]

Thanks, that's what I was wanting to hear about. I'm not a hard enough flyer to stress the tail much, and I normally fly around 2200.

I think I may still look into the align or quick uk tail grips and hub.

[OnTheSnap]

Originally Posted by Discount_Bob

Thanks, that's what I was wanting to hear about. I'm not a hard enough flyer to stress the tail much, and I normally fly around 2200.

I think I may still look into the align or quick uk tail grips and hub.

Definitely a worthwhile upgrade if you auto a lot, run high headspeed, or just have lots of crappy landings.

Logo600 has 2.5mm bolts as well and I've seen many failures there too. 86mm or larger tail blades I would recommend 3mm bolts.

[the_wuth]

Originally Posted by ke6d

I thought you were supposed to put a shim between the end of the shaft and the crown gear (on the left side of your picture) so that the 2 crown gears would mesh better. The gap that xfactor pointed out should not have anything to do with the shim.

Thank guy, I will check carefully which side need to be shim, this is not original part so can't follow previous info. It depend on the mesh and gap of 2 gears.

The gap according to Mr. xfactor pointed for me need to fill otherwise the gear will carry the lateral force along tail rotor shaft during you play left rudder (Heli rotate CCW), it should fit and lock in tail box.

[the_wuth]

Originally Posted by OnTheSnap

Every mechanical system has its limits..

I much like this paragraph

And I hope the factory shall considering to increase mechanical system limits to equal with friend.

[the_wuth]

Originally Posted by Discount_Bob

Thanks, that's what I was wanting to hear about. I'm not a hard enough flyer to stress the tail much, and I normally fly around 2200.

I think I may still look into the align or quick uk tail grips and hub.

Although 2200 RPM still need to check well for mechanical system, my F50 I fly idle 1 only 2050 RPM and idle 2- 2150 RPM run on 550kv with a 13T pinion. Some time only I use idle 2. But still happen..........