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Home✈️Aircraft🚁HelicopterThunder TigerOther › Raptor 30 V2 - Inconsistent Blade Tracking
09-06-2006 03:26 PM  14 years ago
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mfranzyshen

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Somerset, NJ

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Raptor 30 V2 - Inconsistent Blade Tracking
I have a Raptor 30 V2 running Thunder Tiger Carbon blades (which I really like). I noticed when I adjust the blade tracking and have the blades tracking well in a hover, the tracking drifts off after forward flight. I'm not doing anything aggressive, just standard forward flight (no loops, rolls, etc). Someone mentioned I should check/replace the dampeners, but I'm not sure this is the source of the trouble. Could it be the dampeners, the grips, etc? Any insight would be greatly appreciated? Thanks in advance!
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09-06-2006 03:29 PM  14 years ago
jsenicka

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Eagle River, WI

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Spindle is bent.
If it tracks at one point in pitch (hover) and goes out in other points, your spindle is bent.
Jim Senicka
Team Manager, GrandRC Flight Team
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09-06-2006 03:39 PM  14 years ago
mfranzyshen

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Somerset, NJ

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That's what I thought - so I replaced the spindle (it was definitely bent). After the spindle replacement, I re-set the tracking in hover, proceeded to forward flight and returned to hover - same problem (although the degree the tracking was off seemed a little less).
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09-06-2006 03:58 PM  14 years ago
jsenicka

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Eagle River, WI

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Hmmm.
Any issues with the bearings in the grips?
The symptoms you mention lead me to believe something in the feathering system is whacked. That is grips, grip bearings (including thrust bearings), spindle, etc.

What about a loose/bent screw for the ball link on the grip?
Jim Senicka
Team Manager, GrandRC Flight Team
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09-06-2006 04:09 PM  14 years ago
helicrack

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Indiana

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I posted something like ths recently about my Rap30 but my problem was that the blades tracked fine in normal mode but went out in idle up 1. Checked the spindles, bearings, etc and all was good. So I adjusted the blades to track in Idle up and everything seems to be fine now. What mode are you tracking in?".........said the joker to the thief"
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09-06-2006 04:17 PM  14 years ago
mfranzyshen

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Somerset, NJ

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I'm setting the blade tracking in normal mode and flying in normal mode. I would agree with Jim - it could be the thrust bearings are damaged. I did find a good reference to this issue on raptortechique.com (great website). Here's the link for anyone else trying to solve the issue:

http://www.raptortechnique.com/ts-blade-track.htm

I'll work my way down the list and let you know what fixed it (it might be a while, it's a long list - ).
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09-07-2006 03:26 AM  14 years ago
Cromer

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Germantown, NY

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Blade tracking
I just switched to TT carbons on my R30 and started to get the dreaded woofs. I also could not keep them in track. When I went back to my woodies all was fine. I tried changing my dampners and tightened the blades in the grips to no avail. Before checking the bunch of other things on that list I asked my LHS if they had a diffent pair of blades I could try just to see if it was the blades. They did not have another set of TT blades but did have a set of V Blades that I put on. They flew great so now I have them on my bird and have flown them 4 or 5 times with no issues. The TT's would woof every time so I am pretty sure the V blades will be ok. I am not sure if I had a bad set of blades or my Rappy just did not like those blades for some reason. I am going to pick up a set of Maverick's which are pretty reasonably priced just to see how they work out.

Phil
Phil
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09-07-2006 03:36 AM  14 years ago
DarkSideSimba

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Alaska

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Few things I would check on other then what was said above.. Make sure your dampners are well lube, if they are not you will have endless blade tracking issues. There were a few issues of bad molded head blocks. Head blocks that were crooked persay. Paddles out of alignment, flybar not at equal distance from the head block. Over tightened blades, overly loose blades. Just a few of my thoughts on your matter..

Cromer did you balance your carbons? Just cause they are carbons dont mean that it guarentees them to be of perfect balance.

DSS
Evolution.. Times Have Changed.. Has Your Heli??? Sceadu Evo.. Tomorrows Heli.. Todays Evolution
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09-07-2006 04:33 AM  14 years ago
skyad

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sudbury,on,ca

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maybe i've been lucky but I have never had to adjust for blade tracking at the field .I use a robart pitch gage do both blades have exactly same pitch 1/3 from end .grease dampners .calipers to set flybar lengths align paddles by sight raptor technique method.

just a thought check ball links for to much play ??from head right back to servos
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09-08-2006 03:40 AM  14 years ago
Cromer

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Germantown, NY

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Balancing Blades
DarkSideSimba,
Yes I did balance the blades and I had the LHS owner check them also and they were balanced perfectly right out of the package. They looked fine also i.e. no visible warpage or anything of that nature. I am really not sure why my heli didn't like them.

Phil
Phil
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