Washout Arms on Fury Expert.

[david.read]

Hi,

Just a quick one - Should the washout arms be level with one another when the collective is mid stick (50%) on the pitch curve?

Mine are close but don't quite line up.

I have installed the Stratus flybar system. The manual/ instructions indicate that the distance between the links of the push rod to the flybar are set to 10mm. I have done this, but at mid stick, the washout arms do not line up with each other.

I have checked the total range of travel and 0 deg is half the total travel of the swash, with 12 deg full and -12 at the bottom. (Obviously i don't need the full 12 deg, so my radio will adjust it).

I saw a video set up on this site and on the Tempest, the gentleman made sure everything was level.

Hope to here,

David Read.

[ddavison]

I would just treak the length of the two pushrods until they are level, should take too much. Both rods should be the same length.

[david.read]

Hi ddavidson,

Are you saying that, the dowel pins which secure the washout arms, should point at each other when at mid stick?

David

[DavidH]

David,
At midstick with 0 degs pitch. It is preferable that the washout arms be level. What Dave Davison is referring to that the ball links from the flybar to the washout arms can be adjusted to make the washout arms level. He is also saying that those two rods need to be the same length after the adjustment.

Once the washout arms are level, just go to full negative pitch and make sure the pins from the rotor head are still engaged into the washout base.
Then your good to go.

David

[david.read]

Thanks,

I was able to get the washout arms level, by shortening the links going to the flybar by some 4 turns each. - I'm not sure why i want this setup but i have seen it done this way.

I coulden't get the bell mixers level, without adding pitch to the blades, so i left them at whatever angle it gave me 0 deg on the blades. - My heli has the standard Fury head but it has the Extreme bell mixers, and dampners.

I run it up today and found i had tracking problems. :arggg:

David

[DavidH]

I coulden't get the bell mixers level, without adding pitch to the blades, so i left them at whatever angle it gave me 0 deg on the blades.

There is a couple ways to accomplish getting the bell mixers level at 0 Degs pitch and mid stick (50%) on the radio.

1st. You can shorten the three links from the bellcranks to the swashplate equally.

2nd. You can shorten the short link from the flybar to the bell mixer. This link may be screwed together tightly now. Take it apart and shorten the shank on one of the links. You can use an Xacto knife to shorten the link.

If you have a 3D Sport type setup with 0 degs pitch at midstick. You want the bellcranks, bell mixers, washout arms to all be level at midstick.
Also you want the pitch range to be equal on each side of mid stick. The setup needs to be linear and symmetrical.

This type setup is the same no matter what type heli or head is being flown.

David

[david.read]

Thanks again David. - You are a great help!

As you say, the short links are already tight together, so i will look at shortening them.

As i have the Stratus flybar, my MA flybar lock tool no longer fits. Its tricky to get everything level without it!

Anyway, i will keep on fiddling as to try to achieve the perfect setup.
:lol:

Cheers Daivd.

David Read

[ddavison]

To lock the flybar, look thru your allen wrenches find one or two that will slide through the space under the flybar carrier where it goes through the head block. You might find one that is just a little loose, slide it in and turn it it will tighten and lock the flybar.
What David said is correct, one thing to watch out for is you shorten the three links, from the bellcranks to the swashplate, too much ,at full negative pitch you risk disengaging the pins on the bottom of the head from the washout base(not a good thing). I usually just shorten the small links, just use the xacto knife and cut the links were the reinforcment webs end. They end up either screwed together or slightly apart.

[ddavison]

I was thinking you had a Tempest head, on the Extreme head the allen wrenches will not slide through. You need two ,one from each side. They are the smallest ones that I have and take a little pressure to get them in the space. This is with the stock flybar carrier. I have a Stratus carrier on my Tempest head and it works too. Miniature has a new flybar lock that works with the Tempest or Extreme head.

[david.read]

Thanks for the advice.

David