RunRyder RC
 2  Topic Subscribe
WATCH
 1 page 802 views
HelicopterMiniature Aircraft Whiplash & Fury 55 › Transmission Roll Pin Upgrade
12-21-2003 11:54 PM  13 years agoPost 1
BigSky

rrNovice

north america

My Posts: All  Forum  Topic

This is in reference to the roll pin that secures the white delrin female ends to the steel shaft, on both ends of the torque tube. I have had several break,in flight,( probably from previous over stress in a tail crash)The problem is when you crash, you dont know its been stressed, until several gallons later when it decides to fail. I am thinking of replacing the roll pin with a piece of drill rod. Looking for overall strength, on the output shaft. Opinions pro, or con please.

PM  EMAIL  Attn:RR
12-22-2003 12:12 AM  13 years agoPost 2
sbalder

rrApprentice

Brighton, Michigan

My Posts: All  Forum  Topic

Thanks for the tip- I'll be replacing mine as my input and output shafts have sustained hard crashes through the years. I've wondered about this, but never heard of anyone breaking one. The gears on my Hawk are retained with steel pins that are secured with set screws. It wouldn't take too much to modify the MA shafts if you know someone who has a lathe.

Metric dowel pins are available, and they come pre-hardened and tempered, like the pins that secure the head and drive gear to the main shaft.

-Steven Balder

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
12-22-2003 12:40 AM  13 years agoPost 3
Harbinger

rrVeteran

alberta

My Posts: All  Forum  Topic

Wire the roll pin

Take some small safety wire and put it throught and wire it that way it doesnt come loose. Ive seen several guys do this but mine hasnt been a problem in the past.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
12-23-2003 04:21 AM  13 years agoPost 4
BigSky

rrNovice

north america

My Posts: All  Forum  Topic

Where can these hardened metric dowel pins be purchased. They are too small for local hardware stores.

PM  EMAIL  Attn:RR
12-23-2003 08:28 AM  13 years agoPost 5
rappyfly

rrVeteran

Toronto, ONT

My Posts: All  Forum  Topic

I had them failed before.

But, the failed part was old design, the pin was 1.2 mm compared to new one 2 mm. I have not have any fail on the new desing pin.http://www.runryder.com/helicopter/t67751p1/

PM  EMAIL  GALLERY  Attn:RR
12-23-2003 10:33 AM  13 years agoPost 6
C-DOG

rrVeteran

SunShineState

My Posts: All  Forum  Topic

I tottaly agree with the hardened drill bit

I will be modding my new raptor 60.Besides drill bits are pretty easy to come by,thanks for the idea.

PM  EMAIL  Attn:RR
WATCH
 1 page 802 views
HelicopterMiniature Aircraft Whiplash & Fury 55 › Transmission Roll Pin Upgrade
 Print TOPIC  Make Suggestion 

 2  Topic Subscribe

Friday, December 15 - 11:47 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online