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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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Gasser Model RC Helicopters > Warning from my experience about Green Zeal Gel and Gassers
 
 
AceBird
Elite Veteran
Location: Utica, NY USA

Quote 
North / South vibration doesn't effect the Gyro?? Where did you come up with that one??

Grasp the gyro with your fingers and wiggle it in the north / south direction. Does the servo move? Now wiggle it in the east / west direction. Now it moves because it can rotate somewhat when strapped down by a tye-wrap in the north / south direction.

You make me laugh. Vibration is vibration ... really? Then how is it that a vertical fin can flap like a tuning fork while the horizontal fin is dead still?

Vibration is motion is a specific direction and it is canceled out by a force of the proper magnitude in the opposite direction.

I am incapable of handling the helicopter if my gyro lets go from its adhesive mounting so I will always have a physical mounting (tye-wrap) to secure it in place. If this didn't work I would never be able to get a dead still tail, right?

Ace
What could be more fun?
12-19-2006 Over year old.
 
 
avator
Veteran
Location: New Jersey

Green Zeal Gel

I have been using this stuff for years. I have never had a failure of any kind with it. It has been said here that it will absorb moisture and change the characteristics, or, be attacked by ozone, I have not experienced this with Zeal gel, in fact, just the opposite has been the case. This stuff seems to stay just as pliable and tacky years old as when it was new. I also have not seen the tape type of residue that the pictures above show.
Placing plastic tye wraps or velcro straps around the gyro defeats the purpose of the gel or foam mounting tape. Saying that vibration is only in a specific direction on a heli is absurd. Lets see, you have power pulses, a piston and rod going back and forth, a flywheel turning, gears turning, clutch, main rotor, tail rotor, shafts and a number of other parts many turning in different plains and then you place a hard plastic tye on your gyro and think all those vibrations have no effect on the gyro's performance or longevity. If you haven't balanced everything perfectly, and who does, you have vibration to one degree or another. As stated earlier in the post, even the wires coming out of the gyro can induce vibration if it contacts the frame too close to the gyro.

Quote 
What makes you think foam tape, zeal gel or anything that touches the gyro will not induce vibrations?

I can't believe what I'm reading. This guy says anything no matter how ridiculous. You have to physically mount the gyro to the heli, and although gel or foam tape transmits a certain amount of vibs to the gyro it is designed to keep it to a minimum. Attaching it with hard plastic transmits a heck of a lot more vibration. If you're worried about controlling you heli when the gyro comes loose, think about how you'll control it when your gyro fails from all of the vibration.

Naturally, the "one gallon idiot" has to go against the grain and suggest that this is the method that should be used.
Isn't it amazing that this guy who refers to himself as an "expert" can keep all of this information in his head and provides answers for everything, yet, continually misspells simple four letter words. Oh yea, I forgot to mention he still can't fly, but knows everything about it!

lperagallo,
I liked your post, naturally.
12-22-2006 Over year old.
 
 
Chopper Man100
Veteran
Location: albany N.Y.

Zeal Tape, I have had it "melt" sitting on my hobby bench. I had a piece of it sitting around for a year just on my hobby bench. Its humid in my celler in the summer. It seems like the humidity sort of melted it. Thats the only thing I can come up with as the temperature in my basement is very stable. It almost turned into a liquid state, kinda weard.
12-30-2006 Over year old.
 
 
Chris Bergen
Key Veteran
Location: location

It seems there was a "bad" batch some time ago, however it has not seemed to reoccur with the few hundred strips we have sold or used ourselves in the past year.

Chris Bergen
12-31-2006 Over year old.
 
 
steve9534
Key Veteran
Location: yakima, wa.

Zeal gel

I had some of the Zeal gel pretty much turn to goo when exposed to fuel for a while. Stupid or otherwise, I've not had a gyro fail from vibration in 18 years of flying, but have had them come loose on 2 occasions. Strapping it down may well transmit more vibration to the gyro, but the "one gallon wonders" at Miniature Aircraft supply a strap with their heli kits for just that purpose. You can minimize the vibration by putting a piece of foam, gel, or whatever across the top of the gyro between the strap and the gyro case as suggested by Excaliber. steve.
12-31-2006 Over year old.
 
 
avator
Veteran
Location: New Jersey

Good point Steve,

While I don't use anything other than Zeal Gel to hold my gyro's down I have not had any gyro failures either, but, like you I have had one or two come loose over the years; although, these were with foam tape that had gotten fuel on them. I have seen several gyro failures on other guy's heli's over the years though. One recently on a CSM gyro that had a defective sensor. Not sure if vibration was the cause, but, it is likely.
At any rate, if I was going to strap it down, I would use velcro with gel under it, as you suggest, to minimize vibration transference. I would definitely not use a hard plastic tye wrap as some would be "experts" have suggested.
Guy's such as yourself that have been flying for years also know the value of equipment inspections to catch failures before they impact your heli. A tug on the gyro to test it's security is always a good idea.
01-03-2007 Over year old.
 
 
aambrose
Elite Veteran
Location: Pana, IL

I recently bought some Zeal tape and was a little confused by the installation instructions as well. Anyone care to share their experiences with with how they installed it and if they have had any problems with it?

Thanks!


Tony
06-30-2008 04:52 PM
HOMEPAGE  
 
 
lperagallo
Senior Heliman
Location: Westfield, Indiana, USA

I use the green zeal tape all the time. Just make sure that you have a clean surface to install it on. I always clean off the surface with alcohol to clean any oils that may have accumulated. If you are replacing the tape, make sure you get all of it off. Sometimes after you remove it there is a layer of film that also need to come off.

Some people have reported having issues with the tape in hot conditions, but I have never experienced that. I do change all the tape once a year in the spring as part of my yearly maintenance.

Good luck,
Lou

Bergen Intrepid EB, G-26, 720mm; Bergen Turbine, Wren MW54; Raptor 50V2, OS50-Hyper
06-30-2008 05:02 PM
 
 
aambrose
Elite Veteran
Location: Pana, IL

Lou,
I too clean all surfaces with alcohol before changing tape but this is the first time I've ever used the Zeal tape.

Thank you!


Tony
06-30-2008 05:20 PM
HOMEPAGE  
 
 
jschenck
Elite Veteran
Location: La Vista, NE.

I cut a square the size of the gyro sensor and cleaned the gyro sensor with alcohol and the mount on the heli with alcohol. Apply the zeal directly to the gyro sensor then directly to the heli. Didn't add anything between, only used one layer of zeal - works well for me.

...yep...
06-30-2008 05:49 PM
 
 
aambrose
Elite Veteran
Location: Pana, IL

Again, thanks for the tips guys! I was going to do it this way but remembered reading someone was having some problems with this stuff and wanted to see if anything had been resolved.

Thanks again!


Tony
06-30-2008 06:08 PM
HOMEPAGE  
 
 
Red-Rx7
Senior Heliman
Location: Olathe, KS - USA

I am using ZEAL Gryo tape as well. I put a velcrow strap around mine for additional security. The strap is secure, but doesn't wrench the gyro down. The strap itself doesn't seem to cause any vibrations from traveling up it either.

06-30-2008 07:10 PM
 
 
JuanRodriguez
Elite Veteran
Location: Rochester, New York

Red,

Although it looks nice and tidy, that's not a great way mount a receiver as it offers little protection agains vibration.....

Maybe you should consider mounting it with the Zeal ??

Also, excuse my ignorance because I don't own any 2.4 stuff but aren't the antennas supposed to be oriented 90 degrees to each other ??
06-30-2008 07:21 PM
 
 
jschenck
Elite Veteran
Location: La Vista, NE.

""z06"" _EDIT_ - RX7 (sorry) - looks like you do have the foam pad and metal plate between the zeal and the sensor (???)

I run my sensor directly stuck on top of the zeal. - any reason not to?

...yep...
06-30-2008 07:26 PM
 
 
lperagallo
Senior Heliman
Location: Westfield, Indiana, USA

I run my 611 just on green zeal tape. No metal plate. It works great.

Lou

Bergen Intrepid EB, G-26, 720mm; Bergen Turbine, Wren MW54; Raptor 50V2, OS50-Hyper
06-30-2008 07:29 PM
 
 
Red-Rx7
Senior Heliman
Location: Olathe, KS - USA

JuanRodriguez,

Thanks for the feedback. I had to double read your post, as you were talking about my RX when I was in the frame of mind about my Gyro.

I guess I could put some Zeal tape on my RX for mounting; but I have never had an issue before. It make sense that you would want to protect it from vibrations and bad solder joints or whatver, but my emphasis was on the Gyro. In all of my birds, I have used velcrow to secure the RX. I just hate having that be semi-stuck to a surface. When ever I am working on it, I pop it off.

In regards to the antenna, yes. It was just like that for the photo.
06-30-2008 07:31 PM
 
 
Red-Rx7
Senior Heliman
Location: Olathe, KS - USA

jschenck,

I think you would be fine having it directly ran to the Zeal tape. The metal plate is suppose to offer additional vibration reduction through transfer. Any vibration reduction would be nice, so I just threw it all on there. I am not sure it makes much of a difference, but from what I have read the metal plates do help.
06-30-2008 07:34 PM
 
 
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Gasser Model RC Helicopters > Warning from my experience about Green Zeal Gel and Gassers
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