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View Full Version : Looking for some advice from Gohbee rep.


gdzero
11-22-2005, 07:41 PM
Hi,
I talked with David today and have decided to order a 30. I was thinking of going with a Toki 40 but have decided to go with OS 37.
Does the kit w/ this engine come with a pipe? What would be a good pipe for this engine?
I'm just at the hovering stage so I don't need a real hot setup, just somthing good.
Also what are good heli servos? I currently use Futaba 3151s in my Raptor 50.
Also can I use your rep number?
Thanks in advance Glenn

WayneBrown
11-22-2005, 08:04 PM
Don't..
carve on out of wood, it'll last longer.

OzarkCopterBum
11-23-2005, 10:11 AM
I'm not a rep but, I have a 30 with the .37 running the gohbee stock pipe. I havent tried it but have heard good things about the Toki pipe, its really big for a 30 size and isnt very expensive. Servos I have futaba 3001's and a futaba 401/9254.
All in all its a really good inexpensive heli and is lasting just fine. I've got over 20 gallons of fuel through mine plus 4 or 5 crashes and its just starting to show some slop in the main bearings. Only thing I really don't like about it is the tail control rod is a beyotch to get to run smooth. It didnt really bother me too much tilll I got an Evo. This winter I'll probably move the servo to the boom and see if that smooths it up some.

Hotshot Charlie
11-23-2005, 11:43 AM
Hey Glenn,

Sounds like Ozark took care of most of your questions. You made a good decision with the OS37, and the kit comes with a stock muffler.

I use JR DS811's on my 30 and 50 size birds. Any standard servo as has been listed above will work on a 30 size bird.

You are welcome to use my rep number, listed below. Save 7% on your purchase. Welcome to the family of Gohbee flyer's.

WayneBrown
11-23-2005, 03:44 PM
We are still under 2 gallons on it, and it blows the hell up nearly every time out.
So far we've gotten 3 consecutive flights without a failure, but not recently.
Buy wood and a sharp knife....

gdzero
11-26-2005, 11:09 AM
Thanks for your replies and advise. Actually I meant to solicite advise from anyone that had experience with Gohbees.
Reason for buying a 30 when I already have a 50 is I need a backup flying machine. I travel about 1hr every Sunday to fly with some guys that are helping me. I have come to realize that my flying will progress much faster if I practice during the week. However, I have had a lot of crashes trying to teach myself.
This way I can practice during the week and if I crash I'll still have a machine to fly on Sunday.
Reason for a Gohbee is I had the pleasure to fly with Brandon C. (929pilot) one weekend. He has a Stinger 30 and flies the hell out of it. He recommends it. And it can take some punishment.
I talked to David Ellison on the phone and we are both in the machine shop bussiness.
Anyway I'll order the Stinger next week unless I find a used Raptor before then.

NolanManley
11-26-2005, 12:42 PM
We are still under 2 gallons on it, and it blows the hell up nearly every time out.
So far we've gotten 3 consecutive flights without a failure, but not recently.
Buy wood and a sharp knife....

Lammy, What "blows the hell up nearly every time out." The Toki or OS?

929pilot
11-26-2005, 07:36 PM
Hi Glenn! 2 helis are better than 1, and the repair cost of the Stinger is unbeatable.
$29 crash kits make learning less traumatic. Any servos will work on a 30. Tower has this: http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGBF4&P=7
I like this even more:http://www2.mailordercentral.com/quantummodels/ HItec 1/4 scale flight pack $169.
OS 37 is a good choice.

WayneBrown
11-26-2005, 08:49 PM
Blows up as in;
tail box separates, screws back out on the head, screws back out on the pitch lever, servo screws back out on the aluminum pitch arm, clutch breaks, tail grips shear, main gear splits, or balls pulling out of the aluminum.
My personal favorite is when Red or Green locktite is used, and it pulls the threads out of whatever part they were attached to...IN FLIGHT!!
The aluminum appears to be too soft for the use, especially considering the above.
I opened the ARF box, and completely disassembled the machine, mostly because it had sat on a shelf and was a very early first production run kit with known issues.
All QC deficiencies were replaced off the bat with new parts, and that should have ended in flight failures there.
The ***** of the whole deal is it was purchased and is flown by Mike, my 14 y/o son who worked a summer job to buy it himself. It's a real confidence buster to see 3 months of 5 day weeks laboring on a construction site just fall apart hovering.

Hotshot Charlie
11-26-2005, 09:38 PM
Wayne,

Talk to David Ellison about your problems. Yes, the Gohbee's have had some issues... but NONE like you are experiencing. I just don't understand why and I'm sure David will be the first to try to find out why.

WayneBrown
11-26-2005, 09:43 PM
BTDT, and David has replaced the airframe and head, with him and Jody Greer performing the wrench turning. We've had the same issues with the new airframe as well.
David's done all I can expect, but he needs to Lean on the manufacturer in another method to improve QC issues.

Hotshot Charlie
11-26-2005, 09:50 PM
Are you getting vibrations that is causing this? Just don't see why it's stripping out. There has to be a cause.

Anyway, with David and Jody, you have done all you can do, I guess.

With my first 30, I had some issues, and a few small issues with my 50... but I could tell all the QC issues had begun to be addressed, if not already fixed.

I'm just surprised that you are still having these issues.

BTW, hope you had a good T'giving and Happy Holidays !

WayneBrown
11-26-2005, 11:24 PM
If there's vibrations, they are not transferring to something visable.

Hotshot Charlie
11-27-2005, 08:12 AM
Hmmmmmmm.........

I would love to see you get those problems worked out. Wish you were closer, we could play with the bird and see what we could determine..... but again, if David or Jody didn't fix it, doubt I could do any good. Yuck....

OzarkCopterBum
11-28-2005, 10:38 AM
Darn Lame, I havent had ANY problems like that and I have a 30 and a 50. Yes there have been a few QC issues but generally its a part that just dont fit for one reason or another.

WayneBrown
11-28-2005, 06:54 PM
Hmmmm.. I bent the spindle again yesterday after Mike complained the tracking was off.. Again.
One high speed pass with a sharp pull-up does 'em in.
This make oh...SEVEN spindles in less than 1 gallon of fuel.
pretty cool to see how fast you can hit hold and auto one down before it self destructs..

Hotshot Charlie
11-28-2005, 07:15 PM
Dude, you got something wrong, if it's doing that. Please call David and see what he says.

I have battered my S50 around like a banshee.... not bent anything. You should see the G's that I pulled getting the S50 stopped when my Gyro came unstuck from the bird..... WhaaaaaHooooooo !!!

Really, Wayne, let's get your problem solved. Check with the "man", David.

flyinfool
11-28-2005, 08:48 PM
Wayne
There has to be something strange in your particular case.
My Stinger 50 has spent the whole last summer doing very high G maneuvers including a lot of drag racing at well over 2000 head speed. And the only spindle that I bent was in an inadvertent inverted landing.
I put almost 10 cases of fuel thru that poor little bird since I got it, with none of the issues that you are describing. As was mentioned above there were some issues with fit of parts but I believe that those have been addressed.
The tracking going out is most likely being caused by the dampers wearing out. I only get 3-4 gallons out of a set of stock dampers. The first sign that they are wearing out is the tracking drifting in and out. At $3.15 I can keep a few sets around and it only takes me about 10 minutes to change them out (I also wait at least 2 hours for the Loctite to set-up, preferably 24 hours).
When the dampers go out, the forces generated by the out of track condition (if bad enough) could very conceivably bend the spindle and/or main shaft.

I have seen red or green Loctite pull the threads out of known 6061-T6 aluminum when properly applied to small fine thread screws. It sounds like you are using proper technique to apply your Loctite, so blue should be plenty strong.

If you wish to talk about this I will be happy to help any way that I can.
PM me if you want my evening phone number or give me yours.

WayneBrown
11-28-2005, 10:24 PM
FWIW; we replace the dampners every time a spindle gets replaced, and there is no doubt it's bent when you roll it across a piece of mirrored glass on the bench.
Until I can find an aftermarket spindle, or experiment with other brands, we will keep flying and replacing parts until Mike gets a bit more experience, at least he'll know how to fix one..

929pilot
11-29-2005, 04:46 PM
I haven't had any spindle bending either and I subject mine to some pretty severe pull-ups running 2000 rpm. That's with stock dampers, Carbon Extreme crisp 3D Sceadu dampers and most recently Gohbee 90 duro 3D o-ring dampers. I have also let student pilots fly it on the cord and told them to fly it like they fly the sim, do whatever you want...and we know where that leads. :glasses:

Mechanical issues suck! It's hard to enjoy flying if all you get done doing is working on your heli. I think the bent spindle is a symptom, your heli has some other problem that is causing them to bend.

gdzero
11-29-2005, 07:08 PM
I can testify to Brandon's credibility. I have seen him really wring out his Stinger. He was my inspiration for buying my Stinger.

Gohbee
11-30-2005, 10:31 AM
Wayne,

Are you using Gohbee spindles? I regret your issues. I do think they are out of the norm. If we can be of more assistance, give me a call at 800-381-4127.

Thanks,
David

WayneBrown
11-30-2005, 12:23 PM
Thanks David.
We are using Gohbee spindles, as well as the dampners.

Gohbee
12-08-2005, 07:29 PM
Wayne,

We have had other issues, however we have never had issues with spindles bending (unless of course the bird is crashed). We mfg the current batch of spindles in our own shop to very close tolorances. There is something out of the ordinary causing this. We have some very good pilots flying and have never had a spindle to bend due to hard 3D manuevers. Again feel free to call us. This is the best way to resolve issues. The internet can be a little cumbersome for tech support on helis!

Take care,
David

WayneBrown
12-08-2005, 07:39 PM
I hear you..
Been working 5 1/2 hours from home, and focused on my big chopper.
We gave it a once-over last weekend and found the flybar carrier had stripped out. (locktite held bearings and screws in place.)
Replaced that and it's all tight, not sure if a wobbly carrier can cause the spindle issue though.
I've measured 6 1/2* of cyclic with +10,-10 pitch.
It still has the same blades on it, and Mikey has not crashed...yet.
We should fly it this weekend, maybe run up to BS on Saturday to fly with the freaks.