Glitch Problem

[buster1]

I am looking for suggestions regarding a slight glitch I am having with my new Stratus,

Seems to have a slight cyclic glitch (slight RF interence) - not all the time, and only slight.

Has anyone encountered this type of hit and what suggestions of what it might be or a solution.

Thank you,
JH - NY

[WayneBrown]

more info is required to offer anything less than wild assed guesses as to what might be the cause.
What RX are you using?
What servos?
How new is your Stratus?
Has it been crashed?
Is it a conversion or NEW kit?
What's the fan dial indicated to?
What is the gap space between your fan hub and clutch driver?

Honestly, even the motor tuning can be an issue here, Too much information does not exist when trying to Troubleshoot a RF problem..

[buster1]

What RX are you using?
The 9Z receiver, but not the one that you can change frequencies
What servos?

9252 all around
How new is your Stratus?

New Conversion
Has it been crashed?

Not the conversion - but the receiver was involved in a crash before hand in the helicopter I converted from.
Is it a conversion or NEW kit?

Conversion, as mentioned.
What's the fan dial indicated to?

I had it dial indicated by a friend and balanced - I don't think that is the issue.
What is the gap space between your fan hub and clutch driver?

The gap is to spec. per the manual.

The motor is a bit rich, because I have not dialed it in.

The glitch does not come often - its a rare, but it does happen. It happened about 3-4 minutes into the first flight of my Stratus Conversion for a split second and then I landed.

Any suggestions would be great - as I have never had a glitch problem in all the years of flying R/C helicopters - man, this has been a tough year.

[WayneBrown]

A few things to keep in mind..
This is a conversion, so most all the bearing blocks and bearings are reused from the machine you converted from, including the swashplate..
Just for giggles, spend 30 minutes or so going over all fasteners, especially ones with washers under the head of the bolts, making sure that the bolts tightened enough to secure the washer to the frame.
( I had an intermittent that ended up being a bolt bottomed out leaving the washer to move/vibrate.)
Check your servo wire routing, and unplug and physically/visually inspect the entire lead from RX plug to termination at the servo for chafing, or nicked spots.
Recheck the spacing between the fan hub and clutch driver, you should be able to see daylight when looking through the gap. Too tight a gap, and you can make the frames flex enough to bump the parts together and create an intermittent. (try it, invert the chopper, set the head on the table and push on the motor plate..)
re-check all bearings, this will mean that you have to pull the mainshaft up and remove the main gear and boom to check the mainshaft bearing blocks, and tailrotor transmission bearings. While you have the boom out, check the bearings in the T/R box, and torque tube bearings.
You mention the RX was crashed in another aircraft, have you tried to replace the RX with another, or sent it back for service?
One of the Futaba guys can chime in, I have heard there was one RX that had a weak point in the bus bar, Unfortunately I don't know which RX it was..
As a rule, finding RF is a PITA, take your time, and pay attention to the details, it can be one single thing, or a combination of several seemingly insignificant items that cause it.

[bkervaski]

I'm having the same type of glitch... I thought it was a engine tuning issue... The cyclic just kind of 'hits' for a fraction of a second. No particular pattern to the hits.