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Other › Weird Tail action on maiden flight.......
12-23-2008 11:39 PM  8 years agoPost 21
Sky Dancer

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Bryan, Texas

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Also, instructions say gluing is necessary only because the first run of kits had an oversized hole in the head where the dampers go.
The first 10 kits had a slightly looser Damper fit and gluing them in firmed up the head. However, most of us glue in the Dampers (on all the heads) which firms up the head for improved 3D performance and the dampers just don't seem to ever wear out. Curtis has been gluing in the Dampers in all his helicopters for many years.

Gluing in the Dampers usually only causes oscillations when we're running lowered head speeds.

If you're primarily sport flying and desire a lowered head speed then you probably don't need to glue in the dampers. It will work fine but over the long haul the Dampers will probably wear out.

Don C

Keep up your rotor speed !

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12-24-2008 12:32 AM  8 years agoPost 22
Buzzin Brian

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College Station,​Texas

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I could add little more than what Don said. He got it spot on!

Build it, fly it, crash it. Repeat as often as needed.

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12-24-2008 05:21 AM  8 years agoPost 23
Carbon Copter

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USA

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Great! That helps. I'll be testing it out after the Holidays. I do have a few sets of trueblood dampers I will use those unglued for now as I do not have any replacement stock ones. I have no use for them as I no longer have a t-rex head, so now I found a good use!

Thanks

~oo~ Stop fogging up my glasses

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12-24-2008 11:37 PM  8 years agoPost 24
Sky Dancer

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Bryan, Texas

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Carbon Copter,

The trueblood dampers (even unglued) might firm up the rotor head very similar to the glued in o-ring dampers. So, if you decide on running a lower blade speed you may see some oscillations.

Easy fix though.... just speed up the rotor head or use the standard o-rings (not glued in).

Don C

Keep up your rotor speed !

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12-25-2008 01:24 AM  8 years agoPost 25
Carbon Copter

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USA

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Thank you Don. I was thinking the same, glad you sent confirmation. I have opted to use some woodies that are rated for 2400 HS. They are 340mm so I thought it would be cool to try. I may order then the set of original dampers. Actually, I am assuming the individual I purchased the heli from glued them in. Perhaps they did not... I guess I will give it a wirl and see what happens. Best part is if I do get oscilation, I know what it is! I was thinking of putting some epoxy on the roots of the blades and bumping it up a little.

~oo~ Stop fogging up my glasses

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12-25-2008 02:36 AM  8 years agoPost 26
Sky Dancer

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Bryan, Texas

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Hi Carbon Copter,

Sounds like you have it well in hand....

BTW, Personally, I'm not a fan of woodies because I witnessed a good buddies heli explode when the blade roots came apart. It was really ugly, the tail boom (w/TR) hit his friend (who was standing close by) in the stomache and knocked the wind out of him. My friend ( who was flying the heli) started walking out to view the remains of his destroyed heli not even realizing the fella next to him had been hit because he never saw the Tail Boom coming when the heli exploded! Not good!

Ever since seeing that, I've only used Carbon Fiber blades that have great reinforcement internally. I toasted a set of 710 Radix blades and the full length wire in the blade held all the pieces together. We tried and tried to break the pieces apart and they were just not going to separate. Love those Radix blades.... Now that's what I call very cheap insurance!

Anyway be careful and glue those roots on with some good epoxy.

Let us know how things work out, ok?

Don C

Keep up your rotor speed !

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12-25-2008 05:15 AM  8 years agoPost 27
Carbon Copter

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USA

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Thansk again Don for all the good tips. I place all my Helis at least 50 feet away from me and if I am every in close range, it is never in idle up. I am not going over the recommended HS of the blades, so I feel comfortable. However, if I do bump it I will reinforce the roots. I may do anyway.

Hope everyone has a nice Holiday. My servos did not make it here before Christmas! But I have plenty to work on tomorrow after building toys for 4 kids

~oo~ Stop fogging up my glasses

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