RunRyder - RAPTOR 50 Rotor Blade Tracking Problem

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Thunder Tiger Raptors 30-90 - Imperio > RAPTOR 50 Rotor Blade Tracking Problem

azrc_pilot
Heliman
Location: Seria, Brunei

I used Align 600B Carbon Fibre Blades for my 2 months old Titan 50. Original plastic head and grips. (new from box) Fly about 1 and a half gallon. My normal flight head rpm about 1650(hover). Idle up rpm at about 1800. I still used the blue damper. I was surprised today when I do some figure eights and some mild arobatics suddenly the rotor blades out of track and vibrates and produced BRRRR sound. Luckily I safely land it without any damaged. When I lowered down the rotor rpm, the blade was ok again. I checked the spindle but it was not bent. The balde grip bearings and thrust bearings were also ok. I fly again, check the tracking and all are ok. After I did some figure eights, again it started to vibrate and sound terrible (BRRR, slapping sound) This was the first time happened. I do the test flight 3 times and still vibrates terribly. Can someone solve this problem?

01-01-2008 03:35 PM

JingshiRap
Heliman
Location: Malaysia

Did you see the blade out of track during hovering?

Try hovering in idle up switch and see the blade?

If not!

Sound like the blade is fluttering during the maneuver. I can't recall how they set, some says set delta setup and some say flipping blade holder can make it disappear.

Or could it be one of your blade is softer than other. Try to use other blade.

If understand........ Nice!!

01-01-2008 03:50 PM

BEAR
Senior Heliman
Location: Peterborough

May be you need new dampers put red ones in and grease them well I had that happen and changed the dampers and had no more trouble.

01-01-2008 04:41 PM

azrc_pilot
Heliman
Location: Seria, Brunei

During normal hover and idle up hover, the blade not out of track. Ok, before I change the damper, I will try to flip the blade grips tomorrow and see what happens. Thank you guys.

01-01-2008 05:35 PM

azrc_pilot
Heliman
Location: Seria, Brunei

During normal hover and idle up hover, the blade not out of track. Ok, before I change the damper, I will try to flip the blade grips tomorrow and see what happens. Thank you guys.

01-01-2008 05:40 PM

jschenck
Elite Veteran
Location: La Vista, NE.

Look at the screws that hold the ball link on the blade grips, one might be bent.

look for any slop in the collective system. does the collective tray move back and forth?

Is there any slop in the control linkages?

...yep...

01-02-2008 05:13 AM

azrc_pilot
Heliman
Location: Seria, Brunei

Now I still thinking of how to flip the rotor grips. I dismantled the head into pieces this morning and no defects found. The Align 600B rotor blade may be the cause? I will try to fix another blade then and fly it again tormorrow morning.

01-02-2008 01:50 PM

azrc_pilot
Heliman
Location: Seria, Brunei

I managed to flip the rotor grips. I will try to fly it this week end.

I will post the result soon...

01-05-2008 01:12 AM

azrc_pilot
Heliman
Location: Seria, Brunei

JingshiRap,

You were right... After I flipped the rotor grips, no more blades flapping... I can do arobatics now without worries with 1800 rpm!

Thanks again...

*If you have time, pls visit my site: www.rcmaziz.blogspot.com and join our forums, or give some tips.

Caliber 30, raptor Titan 50, RD6000, Spektrum DX7

01-12-2008 06:05 AM

JingshiRap
Heliman
Location: Malaysia

Hi,

Glad to hear from you that it's solved your problem.

Anyway I'm already registered to your forum last Dec

B regards

If understand........ Nice!!

01-12-2008 07:28 AM

TRACERBOB
Senior Heliman
Location: Panama City, FL USA

Hi, I've been reading this post with interest. A flying buddy has the same problem but he's using the stock woodies. Similar scenario, hovers fine but when he adds enough cyclic input to put the heli in motion the blades go way outta track. I'm running the same configuration as he but mine flies fine. I'm wondering if flipping the grips is actually hiding the problem.

01-12-2008 04:27 PM

azrc_pilot
Heliman
Location: Seria, Brunei

Hi TracerBob,

Yes, by flipping the rotor grips, it completely hide and solved this problem. Tell him to try it.

If you dont try, you dont fly....

Regards

01-13-2008 02:39 PM

SirCrashAlot
Heliman
Location: Malaysia

I think that is the infamous WOOFing problem. If it really goes out of whack you will get the POOFing, which is when your blade strike the tail and goes BOOM!!!....literally.

I had the problem too and the grip flip cured it.

01-14-2008 10:37 AM

azrc_pilot
Heliman
Location: Seria, Brunei

Thanks for all your replies and help...

01-14-2008 02:29 PM

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Thunder Tiger Raptors 30-90 - Imperio > RAPTOR 50 Rotor Blade Tracking Problem

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