Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Other Makes and Models Helicopters > V977/K110/K120



Like Tree13Likes
Reply
 
LinkBack Thread Tools Display Modes
Old 09-03-2017, 10:10 AM   #141 (permalink)
Registered Users
 
Posts: 1,250
 

Join Date: Jul 2012
Location: Monroe, UT USA
Default Aww... Nuts!

Sometimes, when new, the main gear has a really tight fit and requires quite a bit of force to install. To easily push it on tightly up against the lower main bearing, simply place a 1/4" nut on it. Makes it easy to push it on with perfect radial distribution of force and no distortion to the gear.





Attached Thumbnails
Click image for larger version

Name:	K110_MAIN_GEAR_NUT_01.jpg
Views:	1897
Size:	36.7 KB
ID:	721412   Click image for larger version

Name:	K110_MAIN_GEAR_NUT_02.jpg
Views:	1862
Size:	51.5 KB
ID:	721413  

Last edited by ridge-runner; 09-03-2017 at 10:25 AM..
ridge-runner is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-05-2017, 08:38 AM   #142 (permalink)
Registered Users
 

Join Date: Nov 2017
Default

I discovered quite by accident that the hk250gt-681x fits the blade grip perfectly. This means that any 681x bearing should fit. As a side bonus, they also fit the hcp80v2.
Wayne Moyer is offline        Reply With Quote Quick reply to this message
Old 03-22-2018, 09:30 AM   #143 (permalink)
Registered Users
 
Posts: 1,250
 

Join Date: Jul 2012
Location: Monroe, UT USA
Default Got wag? Check for a bent tail blade.

I discovered a very simple fix to what is probably a common cause of tail wag.

Tail rotor asymmetry. One blade of the tail rotor is bent slightly forward or backwards.

To fix it, simply bend the bent blade back so that it matches the other blade. Both blades should be perpendicular to the tail axle shaft.

My K110 had a wicked tail wag and close inspection showed one of the blades was slightly bent. When I straightened it, the wag disappeared. Checking the tail blades for symmetry is now a part of my pre-flight check.
ridge-runner is offline        Reply With Quote Quick reply to this message
Old 06-04-2018, 12:19 AM   #144 (permalink)
Registered Users
 
Posts: 598
 

Join Date: Mar 2013
Default V977 / K110 blade selection:

Here is a re-post of a K110 blade comparison photo that I put on the RC Groups K110 thread.
https://www.rcgroups.com/forums/show...postcount=4434





Thomas.Heiss likes this.
__________________
K110 2S, K130, HCP100S, 180CFX, T-Rex 250 & 450, V120D02S, Master CP BL, V200D03, V911
Devo 6S 7E F7 8S 10 12S F12E Deviation, Taranis X9D, T8J, 9X, DX6i, Phoenix 5, RF 7
Team Pilot: MallHeli FireDemon
Extreme Air Ninja 3.6 Channel

Last edited by BirdBarber; 06-04-2018 at 02:10 AM..
BirdBarber is offline        Reply With Quote Quick reply to this message
Old 06-17-2018, 11:51 PM   #145 (permalink)
Registered Users
 
Posts: 205
 

Join Date: Apr 2018
Default

Gaoneng 450 mAh batteries are light have very high 80C rate. The heli has notably better handling due to the lighter better compared with my 600 mAh Turnigy graphines. Unfortunately the plug has to be replaced. They also sell a 600 mAh version. So far I'm pleased with them.

https://www.amazon.com/GNB-450mAh-Ba...ds=Gaoneng+450
SHYguy likes this.

Last edited by Grewrob; 06-21-2018 at 10:14 PM..
Grewrob is offline        Reply With Quote Quick reply to this message
Old 06-19-2018, 08:40 PM   #146 (permalink)
Registered Users
 
Posts: 205
 

Join Date: Apr 2018
Default Grommet replacement

Need replacement canopy grommets? Cut a small square of rubber band, glue it over the hole on the inside of the canopy. Poke a small hole in it and voila.
SHYguy likes this.
Grewrob is offline        Reply With Quote Quick reply to this message
Old 11-29-2018, 08:06 AM   #147 (permalink)
Registered Users
 

Join Date: Nov 2018
Default

Which blades would be better for the v977, the KBDD mcpx or the v931’s?
Also would it be worth upgradig to a carbon fibre main shaft?
flyingbuddy is offline        Reply With Quote Quick reply to this message
Old 11-29-2018, 10:17 PM   #148 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Jan 2011
Default

Quote:
Originally Posted by flyingbuddy View Post
Which blades would be better for the v977, the KBDD mcpx or the v931’s?
Also would it be worth upgradig to a carbon fibre main shaft?
About blades, it depends on your flying style, V931 are longer and thinner, making your heli to flip in a coin, KBDD has longer chord making it more stable and not as fast in cyclic as the others.

V931 blades, my personal experience with this blades, buy 10 pairs, maybe 2 or 3 pairs may be good, the rest are out of track or don’t balance as well as the others, my opinion, stick with stock blades, unless you are in 6g mode, use KBDD, this are heavier.

Carbon fiber shaft, I don’t use it, BUT, I read that it’s not as good as stock shaft.

Post your same questions on rcgroups, there are more eyes than here.
They may have different opinions

https://www.rcgroups.com/micro-helis-42/
salrica is offline        Reply With Quote Quick reply to this message
Old 08-18-2019, 02:32 AM   #149 (permalink)
Registered Users
 
Posts: 4,066
 
My HF Map location
Join Date: Jul 2012
Default

Quote:
Originally Posted by salrica View Post
Carbon fiber shaft, I donít use it, BUT, I read that itís not as good as stock shaft.
https://www.rcgroups.com/micro-helis-42/
I've never had good experience with carbon main shafts either! Same for bigger helis:
-Cracks easily, not always easy to see. Makes it flex.
-The swash plate will often not glide well on the shaft = bind.
And you can't really feel any improvement (less weight).
__________________
Micro: XK K110, Mini: Gaui X2 Formula
Medium: 330X 6S, G380
Big: G500, Align 700E
DX8, Phoenix
SHYguy is offline        Reply With Quote Quick reply to this message
Old 08-18-2019, 02:34 AM   #150 (permalink)
Registered Users
 
Posts: 4,066
 
My HF Map location
Join Date: Jul 2012
Default

Since there's a new kid in town (K130) I did a small comparison:

K100 (not brushless):
Rotor diameter: 245mm
Battery:3.7V 250mAh
Flying weight:45.5g

K110:
Rotor Diameter: 245mm
Battery: 3.7V 450mAh 25C
Flying weight: 58.5g

K120:
Rotor Diameter: 275mm
Battery: 7.4V 300mAh 25C
Flying weight: 78g
33% heavier than a K110

K130:
Blade Diameter: 305mm
Battery: 7.4V 600mAh (2x capacity of K120)
Flying Weight: 124g
111% heavier than K110


The beauty of the K110 is the VERY good gyro and it's crash resilience. With over 2x the weight the K130 be useless in a crash. I flew Nanos and mCPX'es in the past. The gyros were good (minus no piro comp). But they needed power so you spent a small fortune on brushless and other fancy upgrades... the mCPX was ballistic but never survived a crash. The Nano crashed OK but all in all the K110 is a much better option. And a hella lot cheaper

Anything else out there I've missed?
__________________
Micro: XK K110, Mini: Gaui X2 Formula
Medium: 330X 6S, G380
Big: G500, Align 700E
DX8, Phoenix
SHYguy is offline        Reply With Quote Quick reply to this message
Old 08-22-2019, 05:48 AM   #151 (permalink)
Registered Users
 
Posts: 4,066
 
My HF Map location
Join Date: Jul 2012
Default Flashing the ESC with BLHELI - gives you governor +++

https://www.helifreak.com/showthread.php?t=794458
__________________
Micro: XK K110, Mini: Gaui X2 Formula
Medium: 330X 6S, G380
Big: G500, Align 700E
DX8, Phoenix
SHYguy is offline        Reply With Quote Quick reply to this message
Old 08-22-2019, 04:12 PM   #152 (permalink)
Registered Users
 
Posts: 4,066
 
My HF Map location
Join Date: Jul 2012
Default Better main gear

Looks like the Hisky HCP80 main gear is getting harder to find.

Does this fit the XK K110 and is it better than the stock one?
https://www.banggood.com/1-Pair-XK-K...r_warehouse=CN
__________________
Micro: XK K110, Mini: Gaui X2 Formula
Medium: 330X 6S, G380
Big: G500, Align 700E
DX8, Phoenix
SHYguy is offline        Reply With Quote Quick reply to this message
Old 10-02-2019, 10:47 AM   #153 (permalink)
Registered Users
 

Join Date: Apr 2018
Default

Anyone know an easy way to install these little grommits on the canopy? It is a pain in the ass and I can't seem to get one on.
bpjacobsen is online now        Reply With Quote Quick reply to this message
Old 10-02-2019, 10:57 AM   #154 (permalink)
Registered Users
 

Join Date: Apr 2018
Default

Quote:
Originally Posted by SHYguy View Post
Since there's a new kid in town (K130) I did a small comparison:

K100 (not brushless):
Rotor diameter: 245mm
Battery:3.7V 250mAh
Flying weight:45.5g

K110:
Rotor Diameter: 245mm
Battery: 3.7V 450mAh 25C
Flying weight: 58.5g

K120:
Rotor Diameter: 275mm
Battery: 7.4V 300mAh 25C
Flying weight: 78g
33% heavier than a K110

K130:
Blade Diameter: 305mm
Battery: 7.4V 600mAh (2x capacity of K120)
Flying Weight: 124g
111% heavier than K110


The beauty of the K110 is the VERY good gyro and it's crash resilience. With over 2x the weight the K130 be useless in a crash. I flew Nanos and mCPX'es in the past. The gyros were good (minus no piro comp). But they needed power so you spent a small fortune on brushless and other fancy upgrades... the mCPX was ballistic but never survived a crash. The Nano crashed OK but all in all the K110 is a much better option. And a hella lot cheaper

Anything else out there I've missed?
I concur, the 130 seems to break easily in a crash and the landing gear is rigid which makes it break easily. I had multiple issues with the 130 and ended up returning it. Now I have all these spare parts and lipos for it that I may end up just selling unless they improve the design. You have to do a bunch of mods on it to get it working right. Why spend the money when you can just get something better? Just sayin. I went through a few MCPx and MCPs and in my opinion, they don't come close to the K110. I hated the design of the board sitting vertical and how they would burn out easily if you crashed and didn't power down quick enough. burnt like two of them. and they did not hold as well as the 110 either on 3d. To me, the 110 is the best micro on the market hands down. The only mods I suggest are the metal upgrade swash/blade grips/rotor head combo, and using the K120 tail rotor. And for lipos, I found that the GNB 450mah are terrific. Happy flyin!

Last edited by bpjacobsen; 10-03-2019 at 09:31 AM..
bpjacobsen is online now        Reply With Quote Quick reply to this message
Old 10-02-2019, 10:58 AM   #155 (permalink)
Registered Users
 

Join Date: Apr 2018
Default

Quote:
Originally Posted by Grewrob View Post
Need replacement canopy grommets? Cut a small square of rubber band, glue it over the hole on the inside of the canopy. Poke a small hole in it and voila.
Hmm, that is a clever idea? would be much easier than trying to install one of those darn grommets. I have yet to figure out an easy way without breaking the canopy.
bpjacobsen is online now        Reply With Quote Quick reply to this message
Old 11-09-2019, 12:53 PM   #156 (permalink)
Registered Users
 

Join Date: Jul 2012
Location: Chelmsford, Essex
Default

Quote:
Originally Posted by SHYguy View Post
Hi guys! I'm still enjoying my K110s on a daily basis - these are just THE perfect 3D trainers!



The HCP100 bullet blades are my favorites, I find them to be both more stable and hold up better.

I've found that the Blade Nano (also used on the mCPx) tail rotor works very well! In the pic below from left you can see: The original, Nano rotor and an unknown:


The biggest one works well too, but I must say the middle one seems to perform the best. Typically backwards inverted puts the most stress on the tail and that one holds up pretty well. The bigger one is also better than stock but I can't figure out where I got that one from - anyone got an idea?

The center hole in the Nano prop is too small, so that must be drilled to the correct size. I think it was 1,5 mm.

I find the white V977 canopy is very good to use as it makes the heli look bigger and is more visible. It's a direct fit.

Btw good batteries are super important for these helis, so make sure you pick up some fresh Goo's now and then!

Happy flying!
Thanks Shyguy. I haven't received my K110 yet, it's on the way from China but I just ordered these parts to be ready...took a bit of finding nowadays!
SHYguy likes this.
electrev is offline        Reply With Quote Quick reply to this message
Old 11-11-2019, 09:04 AM   #157 (permalink)
Registered Users
 
Posts: 4,066
 
My HF Map location
Join Date: Jul 2012
Default

The tail rotor on the right is from the XK K120.

Enjoy when time comes!
__________________
Micro: XK K110, Mini: Gaui X2 Formula
Medium: 330X 6S, G380
Big: G500, Align 700E
DX8, Phoenix
SHYguy 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.
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


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 © 2019 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1