XMHobbies G401B HH gyro. Locked and Loaded. - Page 2

Speed Stick 3D · Nov 22, 2008, 03:14 AM

Great review Gino.... I think im going to order one

Thanks!

Jimbo45cn · Nov 22, 2008, 09:47 AM

Nice flying Gino. I am sold. Bought one last night. Thanks, Jim

mhills51 · Nov 22, 2008, 01:20 PM

I had one of the GY400 I got from the same seller. It worked well and then just went bad

. No crash just started up and in rate it kept wanting to spin right and in HH kept spinning left. So I am looking for a long term test. I can't remember

, but I think I only had like 6-9 flights on it when it went bad.

So please keep us informed Gino!!

Gino CP · Nov 22, 2008, 06:36 PM

Yes the GY400 was a dud. That was early days and there were few factory 3D fliers in China. I certainly made more than 9 flights with the G401B. So technically it is better. LOL. But I intend to keep using this to see how it goes.

Gino CP · Nov 25, 2008, 07:25 PM

Just got back from the field. Practiced 15 ft flips and some grass cutting. Fabulous morning. I still haven't encountered strong winds so that part of the review is on hold.

Pastulio132 · Nov 28, 2008, 07:02 PM

Just got my G401B from xmhobbies and I'm sad to say that my experience hasn't been quite as trouble-free as yours Gino. I've got some severe wagging issues. I'm using it on a CopterX 450 with a GWS Park HPX-F servo on the tail. I've tried different delay settings but the wag is still there. I've got the gain all the way down to 35% on both modes. It works ok in rate mode but in HH it is still unusable. Any ideas?

Jimbo45cn · Nov 28, 2008, 07:55 PM

Quote:

Originally Posted by Pastulio132

Just got my G401B from xmhobbies and I'm sad to say that my experience hasn't been quite as trouble-free as yours Gino. I've got some severe wagging issues. I'm using it on a CopterX 450 with a GWS Park HPX-F servo on the tail. I've tried different delay settings but the wag is still there. I've got the gain all the way down to 35% on both modes. It works ok in rate mode but in HH it is still unusable. Any ideas?

I have mine hooked up to my Belt CP but have not tried it yet. Anyway, what you can do is keep going down on the gain or up on the delay until the wag stops. I was playing around with the gain settings on mine tonight and it did not go out of HH mode until It was at zero. So anything above that is HH, and 35% may be too much. Just a guess. Jim

brian94066 · Nov 28, 2008, 08:33 PM

just ordered 2

Gino CP · Nov 28, 2008, 11:50 PM

Use delay to eliminated bounce when stopping a piro abruptly. It is not used to remove wag in a steady tail on pitch pumps.

Start with zero delay. Keep that tail in midstick. Do pitch pumps and slow turns. If there is wag, dial down the gain. If you get this right, then you can proceed with delay. For that do quick left and right turn stabs. If the tail bounces (small wags on each end), increase delay.

Jimbo45cn · Nov 29, 2008, 12:25 AM

Quote:

Originally Posted by Gino CP

Use delay to eliminated bounce when stopping a piro abruptly. It is not used to remove wag in a steady tail on pitch pumps.

Start with zero delay. That keep tail in midstick. Do pitch pumps and slow turns. If there is wag, dial down the gain. If you get this right, then you can proceed with delay. For that do quicke left and right turn stabs. If the tail bounces (small wags on each end), increase delay.

Right in the Futaba 401 manual(401B is an exact copy) you DO use the delay with a non digital servo to get rid of wag.

Gino CP · Nov 29, 2008, 02:42 AM

Ok.Thanks for the heads up.

Jimbo45cn · Nov 29, 2008, 12:27 PM

Quote:

Originally Posted by Gino CP

Ok.Thanks for the heads up.

No problem Gino. Thanks to you for giving me the heads up on this gyro. Tried it out on my Belt CP this morning and after some adjustments on my radio and on the delay, got it to working, and it works very well!! Was getting gusty out this morning ( about 15mph ) and it held fine. Just need to do a little mechanical centering, and all should be well. No drift ( as the Eskys do) and very good hold, I dare say as well as the GY 401. The ONLY thing I noticed that was funny is that the piros are quicker one way than the other, and again, that might be solved with me mechanically centering the tail. Will keep all posted. Jim

murdnunoc · Nov 29, 2008, 01:07 PM

Quote:

Originally Posted by Pastulio132

Just got my G401B from xmhobbies and I'm sad to say that my experience hasn't been quite as trouble-free as yours Gino. I've got some severe wagging issues. I'm using it on a CopterX 450 with a GWS Park HPX-F servo on the tail. I've tried different delay settings but the wag is still there. I've got the gain all the way down to 35% on both modes. It works ok in rate mode but in HH it is still unusable. Any ideas?

Running as short a servo arm position as possible will also allow you to run higher gain without wagging. I position mine only long enough to allow full pitch slider travel.

murdnunoc · Nov 29, 2008, 01:13 PM

I just received my 401B yesterday and stuck it on my Trex 450.

WOW.

I haven't flown a 401, so I can't compare it to that, but I've been flying the Trex on a Logictech 2100.

The 401B doesn't seem like it's strung out on caffeine like the 2100. Very, very solid. It didn't look like it was struggling at all in high speed reverse flight, and pitch pumps didn't show a hint of the tail moving.

Haven't had strong winds or extreme temmperatures yet to test it against.

I did wind up increasing the Delay to about 30%, even with a JR 3400G digi servo, to get rid of bounce after a piro.

Jimbo45cn · Nov 29, 2008, 01:35 PM

Quote:

Originally Posted by murdnunoc

Running as short a servo arm position as possible will also allow you to run higher gain without wagging. I position mine only long enough to allow full pitch slider travel.

Good call murd, I am all the way out on the end of the servo arm. Going to try movining it in a hole. Thanks, Jim

Nov 28, 2008, 11:50 PM	#24
Gino CP Team Mulikow Join Date: Oct 2006 Location: Manila, Philippines Posts: 9,268	Use delay to eliminated bounce when stopping a piro abruptly. It is not used to remove wag in a steady tail on pitch pumps. Start with zero delay. Keep that tail in midstick. Do pitch pumps and slow turns. If there is wag, dial down the gain. If you get this right, then you can proceed with delay. For that do quick left and right turn stabs. If the tail bounces (small wags on each end), increase delay. Last edited by Gino CP; Nov 29, 2008 at 02:27 AM.

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Nov 22, 2008, 03:14 AM	#16
Speed Stick 3D VTEC just kicked in, YO! Join Date: Oct 2005 Location: Las Vegas Nv, USA Posts: 2,781	Great review Gino.... I think im going to order one Thanks!

Nov 22, 2008, 09:47 AM	#17
Jimbo45cn Registered User Join Date: Mar 2004 Location: Southwest Florida Posts: 2,525	Nice flying Gino. I am sold. Bought one last night. Thanks, Jim

Nov 22, 2008, 01:20 PM	#18
mhills51 Paycheck flyer Join Date: Feb 2007 Location: kansas city Posts: 4,744	I had one of the GY400 I got from the same seller. It worked well and then just went bad . No crash just started up and in rate it kept wanting to spin right and in HH kept spinning left. So I am looking for a long term test. I can't remember , but I think I only had like 6-9 flights on it when it went bad. So please keep us informed Gino!!

Nov 22, 2008, 06:36 PM	#19
Gino CP Team Mulikow Join Date: Oct 2006 Location: Manila, Philippines Posts: 9,268	Yes the GY400 was a dud. That was early days and there were few factory 3D fliers in China. I certainly made more than 9 flights with the G401B. So technically it is better. LOL. But I intend to keep using this to see how it goes.

Nov 25, 2008, 07:25 PM	#20
Gino CP Team Mulikow Join Date: Oct 2006 Location: Manila, Philippines Posts: 9,268	Just got back from the field. Practiced 15 ft flips and some grass cutting. Fabulous morning. I still haven't encountered strong winds so that part of the review is on hold.

Nov 28, 2008, 07:02 PM	#21
Pastulio132 Registered User Join Date: Oct 2005 Posts: 71	Just got my G401B from xmhobbies and I'm sad to say that my experience hasn't been quite as trouble-free as yours Gino. I've got some severe wagging issues. I'm using it on a CopterX 450 with a GWS Park HPX-F servo on the tail. I've tried different delay settings but the wag is still there. I've got the gain all the way down to 35% on both modes. It works ok in rate mode but in HH it is still unusable. Any ideas?

Nov 28, 2008, 08:33 PM	#23
brian94066 Team Compass USA Join Date: Jul 2007 Location: San Bruno, California Posts: 2,321	just ordered 2

Nov 29, 2008, 02:42 AM	#26
Gino CP Team Mulikow Join Date: Oct 2006 Location: Manila, Philippines Posts: 9,268	Ok.Thanks for the heads up.

Nov 29, 2008, 01:13 PM	#29
murdnunoc Sqwash Plate! Join Date: Oct 2007 Location: North Texas, USA Posts: 1,797	I just received my 401B yesterday and stuck it on my Trex 450. WOW. I haven't flown a 401, so I can't compare it to that, but I've been flying the Trex on a Logictech 2100. The 401B doesn't seem like it's strung out on caffeine like the 2100. Very, very solid. It didn't look like it was struggling at all in high speed reverse flight, and pitch pumps didn't show a hint of the tail moving. Haven't had strong winds or extreme temmperatures yet to test it against. I did wind up increasing the Delay to about 30%, even with a JR 3400G digi servo, to get rid of bounce after a piro.