RunRyder RC
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 3658 views POST REPLY
HomeAircraftHelicopterFuel-Helicopters New or Limited ActivityNext D › Swashplate? Again???
11-03-2013 05:48 PM  5 years agoPost 1
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Yesterday was a great day...and a sad day.

I had just rebuilt my Rave due to the tail rotor hub breaking... The first flight after the rebuild wasn't too bad. It needed a little forward elevator trimming and increase the cyclic feel. After a couple of radio adjustments (minus the elevator), I was having a lot of fun with my Rave. It became a whole new bird with increasing the cyclic control rate. Woo Hoo!

At the end of the second flight, shooting autos, the swashplate decided to come apart at the midpoint of the auto. I only have 162 flights on it. I watched helplessly as my heli slowly rolled over crashing into the ground. It felt like the receiver battery went dead.

I managed to kill the motor before it hit the ground. Damage seems to be minimal...

Has anyone had this happen to theirs?

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
11-22-2013 01:10 PM  5 years agoPost 2
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Here are some pic's of the swashplate...

The thin ring is the remains of the inner sleeve...it goes past the bearing and is flared to prevent the swash from coming apart.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
11-23-2013 06:35 AM  5 years agoPost 3
James Allen

rrVeteran

South West, OH USA

My Posts: All  Forum  Topic

I haven't run into this problem, and I hope I don't.
Maybe give CY Hobbies a call, and talk to Brian. Maybe he has some info to help reduce the chances of this happening again.

Just a question out of curiosity. Did you ever have to tighten your grub screws on the swash to take up any excessive play as the swash wore? Mine is still snug, but maybe yours loosened up, and needed tightened up a bit? By your picks it definitely looks like fatigue caused the issue.

TT Raptor E700, TT Raptor 50v2, Rave Ballistic 700, Rave ENV nitro, Rave 450 citizen #210

PM  EMAIL  GALLERY  Attn:RR  Quote
11-23-2013 09:15 AM  5 years agoPost 4
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

I've checked them from time to time, but never had to tighten the grub screws. I'm not sure what Brian could do, I've replaced it and chalked it up to experience.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2013 05:19 AM  5 years agoPost 5
James Allen

rrVeteran

South West, OH USA

My Posts: All  Forum  Topic

Sucks to see that. Glad you got it back together. Did you see any warning signs at all, with the swash during preflight, or in the way it flew?

They are great flying helis, but I'm going to be nervous now when flying my Ballistic, and ENV. I don't think this is common, but it makes me nervous. It's going to feel like a ticking time bomb.

TT Raptor E700, TT Raptor 50v2, Rave Ballistic 700, Rave ENV nitro, Rave 450 citizen #210

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2013 09:15 AM  5 years agoPost 6
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Personally, I think it was a fluke. No warning at all, just no cyclic control. I did see what appeared to be some separation the flight before it totally came apart. At the time, I was facing the sun and racing the sun for flights before it hit the horizon. So it didn't register to me that something was about to happen.

I'll be ready next time…that is if there is a next time!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2013 09:18 AM  5 years agoPost 7
James Allen

rrVeteran

South West, OH USA

My Posts: All  Forum  Topic

I hope it was a fluke, because I enjoy both my Raves very much. I'll be taking my links off, and checking the swash real good.
Thanks for posting about it.

TT Raptor E700, TT Raptor 50v2, Rave Ballistic 700, Rave ENV nitro, Rave 450 citizen #210

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2013 07:59 PM  5 years agoPost 8
J2M

rrVeteran

UK

My Posts: All  Forum  Topic

Sorry to see this. I had a swash on one of my ENVs develop a lot of play between the inner and outer halves - sent it off to CYE and it was repaired. Are you using flybar blades on an FBL model by any chance?

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2013 08:07 PM  5 years agoPost 9
ian694

rrNovice

United Kingdom

My Posts: All  Forum  Topic

Just out of interest how much did it cost to get it repaired? I've got 2 that I could do with getting looked at, I had pretty much written them off.

Kind Regards

Ian

PM  EMAIL  GALLERY  Attn:RR  Quote
11-25-2013 12:18 PM  5 years agoPost 10
J2M

rrVeteran

UK

My Posts: All  Forum  Topic

Mine were done for free (other than postage)

PM  EMAIL  GALLERY  Attn:RR  Quote
11-26-2013 02:54 PM  5 years agoPost 11
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Are you using flybar blades on an FBL model by any chance?
Nope! Running the 695mm Cyclone blades (FBL). I haven't tried a flybared blade on my ENV. I'm glade [and sorry] to see I'm not the only one.

I won't bother sending any in…the down time waiting for shipping two ways is just too long not being able to fly my Rave! I don't like my heli's sitting around broken!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
12-06-2013 06:00 AM  5 years agoPost 12
Freeskiken

rrApprentice

Edmonton, Alberta, Canada

My Posts: All  Forum  Topic

Thanks, Had a look at mine tonight. I am rebuilding a used Rave Ballistic I bought and the swash is loose. Loser than I want to run. I ordered a new one tonight. The adjustment screws tighten the bearing in to the housing but mine is loose on the inside of the bearing not the outside of the bearing.

Logo 600SE, 500SE. Synergy E7SE, E5S, 516, VControl, Neo

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-06-2013 01:45 PM  5 years agoPost 13
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

... The adjustment screws tighten the bearing in to the housing but mine is loose on the inside of the bearing not the outside of the bearing.
Yep...mine was like that. I'm thinking the amount of material the goes past the bearing is too short/thin. There is not enough material there to hold the "flare", at the bottom of the swashplate. In time and the abuse we give our heli's, this "flare" fails, as with mine, and slowly pulls out, possibly breaking a portion of the center hub off...as mine did. See the thin ring next to the bottom portion of the swashplate.

That small thin ring, on the right, is from the bottom of the center hub.

My Rave is back together, has been for some time now, but I haven't had the chance to test fly it due to weather and sunlight (wind/rain/snow/dark clouds)! Days are getting shorter and the temps are getting much colder than usual this time of the year. I hope to get a day to test my Rave...I going through Rave withdrawals; the sim is not cutting it!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
12-06-2013 07:58 PM  5 years agoPost 14
Freeskiken

rrApprentice

Edmonton, Alberta, Canada

My Posts: All  Forum  Topic

Swash
I suspect mine has the same issue. I bought it used so I am not sure how many flights it had on it. I will remove it and have a better look at it. Most likely just worn out.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
09-08-2014 01:51 PM  4 years agoPost 15
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Flew my Rave this last Saturday. I transfered the heli to my new DX9 radio...what a sweet radio! During setup, I noticed the new swashplate had a little slop in it, kind of like the old/first one. The pitch gauge showed almost a half of a degree slop, as you tilt the blade back and forth.

After 3 flights, the collective responce dropped and the gap between the center hub and the base had increased. There was a lot more slop in the main blades. So I grounded my Rave and ordered a new swashplate...again! I don't have a lot of flights on this swashplate. Without checking my flight logs (yes, I keep a log on the number of flights, damages that happen/I did, worn parts, etc.), I would say it is under 30 flights?

Also, the tail output shaft bearing has become loose in the carbon fiber side plate. I'll change that out and check the output shaft to make sure it isn't bent. This was due to normal wear and tear.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
09-08-2014 03:16 PM  4 years agoPost 16
raholek

rrVeteran

Zachary, Louisiana

My Posts: All  Forum  Topic

Swashplate
This happened to my first swashplate. I noticed the slight tracking changes, then a little loosness in one blade grip. Was toting model to the pits and felt the shake in grip on each step.

Found the flared lip of swash broken loose 3/4 way around.

Called Brian .....Taken care of within the week.

Just part of my pre-flight to check it now. Hasn't happened again, been over a year and over 20 gallons of fuel.

www.redstickrc.net ama#: 968515

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
09-18-2014 12:28 PM  4 years agoPost 17
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Update…
Ok…I replaced the swashplate with the new & improved swashplate. This new swashplate is made better! The center hub is thicker at the bottom and there is absolutely "NO" slop in it!

I replaced the side plate on the tail gearbox and it seemed to have fixed the possible tail issues on the workbench, but a test flight reveled a different story! Now the tail fin has a bit of slop as well.

The test flights (4 of them) has fixed the collective issues and also showed me the aileron cyclic gain on the Beast X was up a bit too much. However, the tail still had some vibration issues, but not as bad as before.

Once home, I took the vertical fin off and discovered the bearing was lose as well. I cleaned the bearing and the carbon fiber area the bearing fits into. Then I mixed up some JB Weld and glued the bearing back in…along with the other side plate I replaced. This time I checked the tail output shaft runout and it was perfect.

I haven't tested it yet, but hopefully tomorrow or this weekend will yield success!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
10-08-2014 05:18 PM  4 years agoPost 18
rcnut

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

More issues!
After using some JB weld, to glue the tail output shaft bearing to the carbon fiber side plate and fin, that fixed the output shaft from wobbling around. On to the next problem!

During one of the test flights, the tail servo decided to lose its strength...and then failed while autoing. I replaced the servo only to find some binding in the tail. At home, I discovered the pitch yoke had pressure on it. I replaced the control arm stand-off and the control arm, both were bent.

Then I decided to replace the AR7200BX with the Spartan Vortex VX1n. The test flight reveild even more vibrating issue. This time Mark and I noticed the main shaft bearing had slop in it.

So I'm waiting from replacement bearing to come in! This should fix any remaining vibration issue!!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

PM  EMAIL  GALLERY  Attn:RR  Quote
10-08-2014 07:49 PM  4 years agoPost 19
Freeskiken

rrApprentice

Edmonton, Alberta, Canada

My Posts: All  Forum  Topic

On the Rave Electric forum I remember reading a build post.

He said quote: 4)Used metal bearing blocks, had some main shaft play after a few flights/used green loctite on upper bearing and main shaft.

I have to check mine because I feel some play in the main shaft when walking to the pits.

Mine is basically new. I rebuilt the Heli with new parts and do not have very many flights on it. Although it flies perfect.

https://rc.runryder.com/t696338p1/

Thanks for keeping us updated with your progress.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-08-2014 08:20 PM  4 years agoPost 20
Heliguychris

rrKey Veteran

Perth, West Australia

My Posts: All  Forum  Topic

i went through two of these swashes in pretty quick succession, so your not the only one. Good helis otherwise tho.

Hope you get the other issues you have sorted.

Licensed (CASA) UAV operator certificate holder 1-YFOF5-01 www.helicamaerial.com.au

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 3658 views POST REPLY
HomeAircraftHelicopterFuel-Helicopters New or Limited ActivityNext D › Swashplate? Again???
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Friday, December 14 - 2:46 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online