King 3 tail drifting/battery relations ? - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE

Go Back   HeliFreak > R/C Helicopter Support > Antique Out of Production and Vintage Helicopters > E-Sky Helicopters > King II/III/IV and CP 2/3

King II/III/IV and CP 2/3 E-Sky King 2, 3, 4 plus CP 2 & 3

LinkBack Thread Tools Display Modes
Old 12-14-2010, 05:10 AM   #1 (permalink)
Registered Users

Join Date: Nov 2010
Location: Croatia
Question King 3 tail drifting/battery relations ?


Yesterday I was trying to set up tail in rate mode.
I am using standard method without trim and subtrim. Just with moving rudder servo along boom until found place there is no drifting.
Gyro - hk401b , tail servo - ds480
I was very surprised when found that tail drifting different with different batteries.
With Zippy 2200 drift slighty to left(tail left looking from behind), and slightly to right with Turnigy 2200.
Weight is about:
Turnigy - 195g 25c
Zippy - 180g. 20c

So, why this?
Obviously Turnigy is heavier and little more head speed need for lift off and hoovering, but tail rotor speed is corresponding with head rotor speed(more head speed-more tail rotor speed).
Why that few grams making such difference. Or there is something else.

ku_hi is offline        Reply With Quote Quick reply to this message
Sponsored Links
Old 12-14-2010, 08:53 AM   #2 (permalink)
Registered Users
Posts: 2,560
My HF Map location
Join Date: Feb 2010
Location: Margate, England

hello ku_hi... the hk401 gyro is not the best so expect a bit of drift.
you will find that as the battery voltage goes down so the tail will start to drift.
you can use a few clicks of trim to stop the drift but it wont last long before it will drift again requiring more carefull, too much trim will cause the gyro to go to full left/right travel, this will make the heli piro.
as you said different head speed = different tail speed, this will effect how well the gyro can hold the tail...its best to stick to one type of battery. a faster head speed will hold better than a slow speed.
after you set rate mode did you teach the gyro the new centre point by flicking the hh/rate switch 3 times really quickly?? if not try this as it will hold better....the gyro light will flash 3 times to show its has the new centre.
warp 360-ds92-ds525m-polaris bec-beastx-edge 50 lite-yummy
Synergy E5-castle 100 ice-bec pro-beastx.
futaba T8FG--R606FS/R617FS
chrismechanic is offline        Reply With Quote Quick reply to this message

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
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:
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.
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.


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 © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1