WARNING: HDX-450SE - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Electric Micro/Mini Helicopters


Electric Micro/Mini Helicopters Electric Micro Helicopters Discussion


Reply
 
LinkBack Thread Tools Display Modes
Old 03-12-2008, 11:30 AM   #1 (permalink)
 

Join Date: Sep 2007
Location: Laguna Niguel, CA
Default WARNING: HDX-450SE

WARNING: HDX-450SE

Several of you have been helping me with a tail rotor problem that has now resulted in 3 seperate loss of tail rotor events, all resulting in crashes.

Just recently I rebuilt the HDX for the third time and commenced the usual process of tracking blades, etc. On my second battery pack, I stood back the usual distance of around 40 feet or so and commenced some piro manuevers which it seemed to handle just fine. Secondly I tried som FF which also unveiled no problems. Near the end of the pack I brought the HDX back in and commenced some pitch pumping manuevers to which the tail rotor gave out again. I know for a fact that the tail rotor was sound as was the GY-240 gyro. A third and final post crash investigation revealed that during hard collective manuevers the tail rotor drive gear (the large one beneath the main gear) can actually flex far enough to contact the frame. Additionally, this gear can flex far enough to actually disengage from the tail rotor drive pinion. The only way to get the two gears to reengage is to slow the rotor system to a speed that will allow it to resync or mesh.

To date teh HDX has been an incredible ship that has on numerous occasions proven to outfly and outlast (maintenance wise) the Trex. Any owner of this ship should give careful inspection to the manner in which the lower gear and tail rotor drive gear mesh. I worked with Sonix to get the tail rotor drive shaft redesigned and look forward to a remedy for this as well. Growing pains I guess.

Good luck!
AXE3D is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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 © 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