RunRyder RC
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1629 views POST REPLY
02-28-2016 05:08 PM  30 months agoPost 1
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

Any one to buy a broke roban 222 put 250 dollar blades on it up to do tracking and blew apart fuse cracked buy tip down to wind shield, most ply broke inside. main shaft is straight with a brand new align head I'm at a lost. check the blades cg was perfect and so was the balance

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 12:31 AM  30 months agoPost 2
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

My Posts: All  Forum  Topic

what the hell????
what happened? man I hate to hear that!

drive a rotary, fly a rotorcraft

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-29-2016 01:01 AM  30 months agoPost 3
ssmith512

rrKey Veteran

Indianapolis, IN USA

My Posts: All  Forum  Topic

No way! Any postmortem info?

Steve

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 01:06 AM  30 months agoPost 4
TailKiller

rrApprentice

Panama City, FL

My Posts: All  Forum  Topic

So sorry man.. I hope you can determine what happened. It won't fix it but it helps to know what went wrong.

,Dennis
http://pcrcheliclub.com/
700 Astar Super Scale T-600 Bell 206 Trex 600 Naza H DX8

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-29-2016 02:17 AM  30 months agoPost 5
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

my best guess is crazy vibration, ship was perfect, my guess was the new blades were very heavy and lead lag, out of sink and boom

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 02:18 AM  30 months agoPost 6
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

didn even get a time to track them

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 02:18 AM  30 months agoPost 7
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

funny still blades are pefect

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 02:23 AM  30 months agoPost 8
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

pull everything out mechanics are fine, only thing I found was main shaft bearing is loose in frame, has a hair of wobble, but that's it, I think I can fix fuse, lots of broken ply

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 03:43 AM  30 months agoPost 9
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

My Posts: All  Forum  Topic

you know Steve mentioned to me about a bearing being loose in the frames that could be causing the vibrations I am having with Roy's mechanics but I haven't checked it yet. I wonder if it could just be that those blades do not work with the head combo and caused resonance. I had that happen once with my Blackhawk mechanics 10 years ago. different blades had different results.

drive a rotary, fly a rotorcraft

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-29-2016 01:39 PM  30 months agoPost 10
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

My guess is the blade Cg was off length wise , I need to hang them from the blade bolt and see if they match. We all check the balance blade to blade, and teter each blade for Cg that way. But of Cg is off length wise you will very serious blade lead lag problems.( kinda like aft cg of an airplane )And that I did not check.

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 02:43 PM  30 months agoPost 11
TailKiller

rrApprentice

Panama City, FL

My Posts: All  Forum  Topic

I had a similar thing happen a couple years ago with a Roban 700 Jet Ranger using trex 600 mechs swinging 700mm blades. The flight lasted about 45 seconds before the whole thing imploded in mid air. But I was able to see that the blade grip linkage ball link popped off. I saw the blade was twisted before it hit the ground..

,Dennis
http://pcrcheliclub.com/
700 Astar Super Scale T-600 Bell 206 Trex 600 Naza H DX8

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-29-2016 03:45 PM  30 months agoPost 12
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

Ball links were all on never even touch the blade, got it down in a hurry did not even break the retracts. Got a lots of ply fixed but will have to re epoxy some of the ply to the fuse and put some triangle stock on some joints. Then were the glass is cracked I will glass from the backside. Then put mechanics back in with stock blades. It was flying ok but would in and out of track stock blade grip had slop in the bearing I could wiggle the grip on the feathering shaft. That's why I replace the head.

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
02-29-2016 06:11 PM  30 months agoPost 13
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

My Posts: All  Forum  Topic

Were u using the vsrio blades you ordered? They're usually spit in with span wise and chord wise balance. What does each blade weigh? Also curious to see if the cg of each blade match.

drive a rotary, fly a rotorcraft

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-29-2016 06:22 PM  30 months agoPost 14
Grimracer

rrVeteran

Eau Claire WI

My Posts: All  Forum  Topic

I went though an exercise of futility trying to get a multi head (in this case 5) to work on my TT MD.. I got a number of semi successful flights in but every once and a while it would just shake its brains out. NEVER got it fixed and I tried it all.

When it was good it was darn good.. when it was bad it was REAL bad.. I tried lead and lag balance and different blades.. modifying blades and all.. no luck.

What bugs me is I read this and have had my heli shake and I can not help because I never found the solution..

Keep us posted

Grim

Michael J Zaborowski

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-29-2016 06:27 PM  30 months agoPost 15
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

yes the blades were shark skin 800mm, I check the Cg of each blade about half a mm off, balance with each other was right on. check on weight when I get home, they were alot heaver then the stock ones.

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
03-01-2016 12:14 AM  29 months agoPost 16
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

stock blade 185g new blades 280g

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
03-01-2016 12:08 PM  29 months agoPost 17
Notar

rrKey Veteran

Taxachussetts

My Posts: All  Forum  Topic

What was your head speed? If it was over 1400rpm, that is what most likely killed it.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-01-2016 01:11 PM  29 months agoPost 18
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

was 1325

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
03-01-2016 01:13 PM  29 months agoPost 19
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

Could be I could check the cc data its was on gov mode

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
03-01-2016 01:15 PM  29 months agoPost 20
old nitroman

rrVeteran

Naples florida

My Posts: All  Forum  Topic

Joe when I get a day off will get those other blades back to you.

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1629 views POST REPLY
 Print TOPIC  Make Suggestion 

 6  Topic Subscribe

Friday, August 17 - 7:50 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online