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HelicopterMain Discussion › plastic grips
10-20-2009 03:41 AM  8 years agoPost 1
justlivin3d

rrNovice

usa

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Are there any risks associated with running the plastic blade grips.. Do they eventually fail where as metal grips would not??

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10-20-2009 03:59 AM  8 years agoPost 2
MrNiceGuy

rrVeteran

Melbourne, FL

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If they are Mikado no. All others, well...... What bird are you talking about?

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10-20-2009 04:03 AM  8 years agoPost 3
David Blain

rrKey Veteran

Mt. Dora, Florida (USA)

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Okay, I'll bite on this one--
What heli?
What engine/power combo?
Blade size?

What type of flying, Headspeed???
Questions can go on and on and on.....

Fill out your profile so when you post a question the guys on RR can assist you !!!!!!

Blank profiles tell us nothing...

David Blain
T.O.R.C.H.S. Orlando Member

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10-20-2009 04:18 AM  8 years agoPost 4
oldfart

rrProfessor

Vancouver, Canada

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I've flown literally 1000's of flights with plastic gripped helis from MinAir, Hirobo, JR and Century and never had a problem.

Of course you can have problems with anything if they are not flown at normal rotor sppeds with blades designed for them.

I have seen more rotor blades come apart at the root (wood, fiberglass and carbon fiber units) then I have seen problems from plastic grips made from the proper quality of plastic (GRP).

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10-20-2009 04:19 AM  8 years agoPost 5
dkshema

rrMaster

Cedar Rapids, IA

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NO, there is no inherent risk in running plastic blade grips. If there were, you wouldn't see them as standard equipment on most helis.

Properly engineered, using the right plastics, they are like Tootsie Rolls -- they last a long long time.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-20-2009 04:29 AM  8 years agoPost 6
jschenck

rrProfessor

La Vista, NE.

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I have had some pretty impressive high energy crashes with my plastic grip'd Raptor's that tore the main hub in half, grips still good. When I do break them, usually the ball link screw breaks off clean, it's like $10 to replace them. Another advantage of plasic grips they don't tear up the bearings as much in a crash.

I do like the metal grips on the heli's that I have that have them, for looks if nothing else. There may be a performance difference for a better pilot, I doubt I could pick up the subtle difference But if I do bend them it'll cost. It's a trade-off.

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10-20-2009 06:33 AM  8 years agoPost 7
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Back when Krause was flying Miniature Aircraft, he used to complain that metal grips were harder on thrust bearings, so he prefered plastic. The 700 has metal grips, maybe because it too hard to get
good, consistent quality made in China, I don't know, but I have had to replace the thrust bearings in my 700 twice now. I very rarely, if ever, did with the MA plasic grips. Those grips were very good quality. I wish Align made some like them.

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10-20-2009 08:51 AM  8 years agoPost 8
Bob Wales (RIP)

rrKey Veteran

Lebanon CT

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I have one of the first run Align 600 nitro pro's that came with plastic blade grips and still runing strong for three years now and no issues with the plastic blade grips.

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10-20-2009 01:11 PM  8 years agoPost 9
MichaelP

rrKey Veteran

Northumberland UK

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Got plastic grips on all my scalers, used for years...no problems.

http://www.webstarts.com/micksscalehelicopters

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10-20-2009 01:47 PM  8 years agoPost 10
reddragon

rrElite Veteran

Brooklyn, N.Y.

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Plastic grips are fine. I've had some for 8 years with no failures.

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10-20-2009 02:03 PM  8 years agoPost 11
Rafael23cc

rrKey Veteran

Junction City, KS

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I have upgraded the heads of my Raptor 50 and 90 to metal, except the grips. In the event of an impact, you need something to absorb the energy of the impact and dissipate it. Plastic grips, along with the blades, absorb most of this energy. Otherwise, your helicopter maight think it needs to turn your spindle and main shaft into pretzels.

Rafael

Keep your feet on the ground, but your eyes on the sky.
Team Heliproz.com

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10-20-2009 02:32 PM  8 years agoPost 12
LonR

rrElite Veteran

Macomb,Mi

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Tons of flights on my Trex 600 Nitro sport with no issues at all running a 2000-2050 RPM head speed.These grips have been through 2 crashes and there still perfect.

Watch at YouTube

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

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10-20-2009 03:53 PM  8 years agoPost 13
Aaron29

rrProfessor

USA

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Should be fine ... IF ran according to manufacturer instructions.

Sometimes you hear about someone running 90 sized blades at 2100 RPM on 50 sized grips.

Inevitably will fail.

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10-20-2009 04:17 PM  8 years agoPost 14
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Tim S who used to own MA said he didn't rcommend more than 2100-2200
head speed with the plasic. So he sent me some special stainless grip holders to replace the alum ones for the metal grips. With this special head I've been able to turn 2300 with 14+ pitch on 710s with no problems on my Drag machine.

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