How tight should the main blades be? - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopters > Main Forum - Helicopter Talk


Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please


Reply
 
LinkBack Thread Tools Display Modes
Old 05-11-2012, 09:35 PM   #1 (permalink)
Registered Users
 
Posts: 7,328
 

Join Date: Mar 2011
Location: Montgomery County, Maryland
Default How tight should the main blades be?

I seems that the bigger the helicopters with the corresponding bigger main blades, the tighter the main blades should be. These are my question:

1) How do you tell that you have optimal tightness?

2) How do you tell if the main blades are too tight or too loose?

3) What are the detrimental effects from too tight or too loose main blades?

Thanks
__________________
Protos 770 Evoluzione Leggero, Synergy E5, Logo 700/550SX V2, Goblin 700 KSE/380 KSE
Kontronik ESCs; Spirit Pro/Brain2 BT; MKS/Futaba/Xpert/BK servos; KDE/Xnova/Kontronik/Scorpion motors, Jeti DS-16C/DX8 Gen 2, Citizen 259
curmudgeon is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 05-11-2012, 09:50 PM   #2 (permalink)
Registered Users
 
Posts: 43,035
 
My HF Map location
Join Date: May 2008
Location: Maplewood, MN
Default

Tighten enough so they hold when the heli is tilted sideways.. but loose enough so when you bounce the heli up and down they can move a bit.
__________________
"It's not just a hobby... it's a lifestyle" - Pete ϟ
Goblin 500 + 700 / SK540 / Jives / DX8 / Quantum / RJX servos / 306b / Deep cycles
Slyster is online now        Reply With Quote Quick reply to this message
Old 05-11-2012, 09:58 PM   #3 (permalink)
Registered Users
 
Posts: 4,804
 
My HF Map location
Join Date: Jun 2011
Location: Seattle Area, East Side
Default

1) like sly said, snug the blades up until they hold their own weight with the heli sideways. Then give tha screw another 1/16 turn.

2) you can't move the blades in the grip by hand= too tight; blades flop around by themselves: too loose.

3) too tight>vibes; too loose>boom strikes
__________________
CopterX 450 Black Angel FBL "Night Rig" | ZYX v4.0
PRTOS 500 FBL "Sky Whip" | Robird G31
Audacity P6 FBL "Phoenix" | MSH Brain | 12s
Goblin Speed | iKon
Dr. M is offline        Reply With Quote Quick reply to this message
Old 05-11-2012, 09:59 PM   #4 (permalink)
Registered Users
 
Posts: 7,328
Thread Starter Thread Starter
 

Join Date: Mar 2011
Location: Montgomery County, Maryland
Default

Quote:
Originally Posted by Slyster View Post
Tighten enough so they hold when the heli is tilted sideways.. but loose enough so when you bounce the heli up and down they can move a bit.
Yes. I have seen John Salt's videos on his website http://www.rchelicopterfun.com where he uses the same method you describe. The part that gets to be a little tricky is when there is not power to the helicopter electronics, and the blades do not stay at 0 degrees. I am just wondering if there is a less cumbersome method. I guess I can always power up the electronics and check for blade tightness at mid stick.

Thanks.
__________________
Protos 770 Evoluzione Leggero, Synergy E5, Logo 700/550SX V2, Goblin 700 KSE/380 KSE
Kontronik ESCs; Spirit Pro/Brain2 BT; MKS/Futaba/Xpert/BK servos; KDE/Xnova/Kontronik/Scorpion motors, Jeti DS-16C/DX8 Gen 2, Citizen 259
curmudgeon is offline        Reply With Quote Quick reply to this message
Old 05-11-2012, 10:00 PM   #5 (permalink)
Registered Users
 
Posts: 7,328
Thread Starter Thread Starter
 

Join Date: Mar 2011
Location: Montgomery County, Maryland
Default

Quote:
Originally Posted by Dr. M View Post
too tight>vibes; too loose>boom strikes
Thanks. That is helpful information.
__________________
Protos 770 Evoluzione Leggero, Synergy E5, Logo 700/550SX V2, Goblin 700 KSE/380 KSE
Kontronik ESCs; Spirit Pro/Brain2 BT; MKS/Futaba/Xpert/BK servos; KDE/Xnova/Kontronik/Scorpion motors, Jeti DS-16C/DX8 Gen 2, Citizen 259
curmudgeon is offline        Reply With Quote Quick reply to this message
Old 05-11-2012, 10:03 PM   #6 (permalink)
Registered Users
 
Posts: 7,328
Thread Starter Thread Starter
 

Join Date: Mar 2011
Location: Montgomery County, Maryland
Default

BTW, does anybody use washers with the blade screw. My blade grips have circular marks from tightening the blade screws. I wonder if a properly sized washer would remedy this.
__________________
Protos 770 Evoluzione Leggero, Synergy E5, Logo 700/550SX V2, Goblin 700 KSE/380 KSE
Kontronik ESCs; Spirit Pro/Brain2 BT; MKS/Futaba/Xpert/BK servos; KDE/Xnova/Kontronik/Scorpion motors, Jeti DS-16C/DX8 Gen 2, Citizen 259
curmudgeon is offline        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Insurance
Please select your insurance company (Optional)
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © VerticalScope Inc. All rights reserved.
 

SEO by vBSEO 3.6.1