700x Tail Gears - Whats the deal here? - Page 11 - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 700 Class Electric Helicopters


700 Class Electric Helicopters 700 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


Reply
 
LinkBack Thread Tools Display Modes
Old 03-10-2017, 01:54 PM   #201 (permalink)
Registered Users
 
Posts: 673
 

Join Date: Sep 2016
Location: Dornbirn, Austria
Default

Tested the 23t and new boom mount today after rebuilding it because of a servowire mishap. At 1950 RPM the tail is solid. 22t was ok for me but so is 23t. I just increased the tailgain a bit.

The heli kicks ass!
__________________
Diabolo L 800+, T-rex 700X, Bell 222 (T-rex 600), Hughes 500E (450), Devil 420
Thoemse is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-10-2017, 01:57 PM   #202 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

That's good to hear.. I guess the acid test would be something that really puts the tail hold under a severe test, like maybe sideways or backward loops or similar.
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Old 03-10-2017, 02:43 PM   #203 (permalink)
Registered Users
 

Join Date: May 2012
Location: Columbus, Ohio
Default

Can 700x have 115 tails in stock configuration ?
cbrkhan is offline        Reply With Quote Quick reply to this message
Old 03-10-2017, 03:45 PM   #204 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

Quote:
Originally Posted by cbrkhan View Post
Can 700x have 115 tails in stock configuration ?
Not with total safety no. There is about 8mm clearance between the main and tail blades with the stock 106mm blades, so 115mm would risk blades touching. You would probably be ok 99.9% of the time but in theory at least it's a risk.
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Old 03-10-2017, 04:24 PM   #205 (permalink)
Registered Users
 
Posts: 2,348
 
My HF Map location
Join Date: Sep 2006
Location: Connecticut, USA
Default

Further, the stock gearing is ~4.73:1 on the tail rotor. I do not believe the 23T front TT gear is in the stock kit presently.

The 4.73 ratio should be plenty of tail authority across the vast majority of headspeeds being used, I don't think there would be a need or benefit to running the longer tail blades.

Are you planning to run some ultra low headspeed? There certainly are ways to improve the blade clearance to accommodate longer tail blades if you truly need to.
dchekas is online now        Reply With Quote Quick reply to this message
Old 03-10-2017, 05:08 PM   #206 (permalink)
Registered Users
 
Posts: 673
 

Join Date: Sep 2016
Location: Dornbirn, Austria
Default

Quote:
Originally Posted by Grumpy_Old_Man View Post
That's good to hear.. I guess the acid test would be something that really puts the tail hold under a severe test, like maybe sideways or backward loops or similar.
I am still new to helis. I only do regular loops and some inverted flying so far. I could test it but I'd probably crash it. :p
__________________
Diabolo L 800+, T-rex 700X, Bell 222 (T-rex 600), Hughes 500E (450), Devil 420
Thoemse is offline        Reply With Quote Quick reply to this message
Old 03-10-2017, 06:07 PM   #207 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

Quote:
Originally Posted by Thoemse View Post
I could test it but I'd probably crash it. :p
me too
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Old 03-24-2017, 02:45 PM   #208 (permalink)
Registered Users
 

Join Date: Oct 2008
Location: England
Default

Add another statistic to the list , 4th flight of my stock 700x with a vbar neo running 2200 today ,and I started doing some tailslides, death spirals flips and rolls , just pulled out of a tail slide into flip and lost the tail , sure enough, stripped the tyre drive gear , got it down safely thou ,have ordered the 23t replacement
__________________
FLY IT LIKE YOU HATE IT
maanz641 is offline        Reply With Quote Quick reply to this message
Old 03-24-2017, 03:41 PM   #209 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

Quote:
Originally Posted by maanz641 View Post
Add another statistic to the list ,
Was it the red or the black gear that you stripped?
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Old 03-24-2017, 04:18 PM   #210 (permalink)
Registered Users
 

Join Date: Oct 2013
Location: sammammish
Default

After all this talk bout gears stripping i pulled my gears last night. They had too much backlash and a white powdery look to them. I have 50 flights on this heli with no problems. I replaced all gears, front ones w new black 22tooth and red rear ones. I also lubed them up a little. I havent had any issues so far mostly running 2225 rpms. Im starting to think this problem is due to some gears not being made well or off a little. The new tail case is a good idea but does anyone know yet if the new 22 tooth red gears will fit or do you have to use the 23 tooth. I honestly cannot go down to a lower tail ratio cause even at 2200 rpm and higher gear ratio i have to use really high gains to lock my tail in. I think im going to use the longer boom so i can use 115mm tail blades
dbirds2 is offline        Reply With Quote Quick reply to this message
Old 03-24-2017, 04:28 PM   #211 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

The old black 22t gears fit with a 5 minute modifiaction... so worst case the 22t red gears will need the same. i'd expect that gears being made now will be 'pre-modified' to suit the new tail box.. makes no sense to not do that.
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Old 03-24-2017, 07:53 PM   #212 (permalink)
Registered Users
 
Posts: 1,895
 

Join Date: Jun 2006
Location: New Jersey
Default

Red 22t tail gear drops right into the new case.. no mods needs
__________________
Synergy 766 12s/ 766 14s / Synergy N7 / Align 700X/700N DFC
Black Thunder 700 / Black Nitro 700x2 / Black Thunder 700 T
Locktite is online now        Reply With Quote Quick reply to this message
Old 03-24-2017, 10:44 PM   #213 (permalink)
Registered Users
 

Join Date: Oct 2013
Location: sammammish
Default

Okay thats what i want to hear. Does the 22 tooth w new tail box set a better backlash.
dbirds2 is offline        Reply With Quote Quick reply to this message
Old 03-25-2017, 02:22 AM   #214 (permalink)
Registered Users
 
Posts: 1,895
 

Join Date: Jun 2006
Location: New Jersey
Default

Mesh was perfect.. no need for any shims..
__________________
Synergy 766 12s/ 766 14s / Synergy N7 / Align 700X/700N DFC
Black Thunder 700 / Black Nitro 700x2 / Black Thunder 700 T
Locktite is online now        Reply With Quote Quick reply to this message
Old 04-02-2017, 01:36 AM   #215 (permalink)
Registered Users
 

Join Date: May 2012
Location: Columbus, Ohio
Default

So I am staying with the 22t gears. I modded mine like grumpy did. I also have red 22ts but I did not want to sell old supply of gears that I have from my 700dfc v3 days

I tried fit and feel of both. Red need no shimming at all. Black needs 0.01 mm shim to be lash free
cbrkhan is offline        Reply With Quote Quick reply to this message
Old 04-02-2017, 01:04 PM   #216 (permalink)
Registered Users
 

Join Date: Oct 2013
Location: sammammish
Default

I would have so much tail authority issues with the 23 tooth tail gear. Even with the 4.73 tail ratio i have to really up my gains and pre comp to lock in my tail at 2150
dbirds2 is offline        Reply With Quote Quick reply to this message
Old 08-15-2017, 12:39 AM   #217 (permalink)
Registered Users
 
Posts: 4,146
 

Join Date: Oct 2008
Location: Perrysburg, OH
Default

Does the new style tail case come in newly released kits?

Sent from my LGLS990 using Tapatalk
Cullen Colapietro is offline        Reply With Quote Quick reply to this message
Old 08-15-2017, 09:37 PM   #218 (permalink)
Registered Users
 
Posts: 6,754
 
My HF Map location
Join Date: Aug 2011
Location: COLDHIO
Default

Quote:
Originally Posted by Cullen Colapietro View Post
Does the new style tail case come in newly released kits?

Sent from my LGLS990 using Tapatalk
yes mine came with it. and i had purchased the upgrade before hand.
crf69 is offline        Reply With Quote Quick reply to this message
Old 08-15-2017, 10:25 PM   #219 (permalink)
Registered Users
 
Posts: 4,146
 

Join Date: Oct 2008
Location: Perrysburg, OH
Default

Thank you, hoping enterprise gets a shipment in soon

Sent from my LGLS990 using Tapatalk
Cullen Colapietro 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