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 Bert Kammerer's Spartan tip

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AirforceWan



Posts : 26
Join date : 2008-09-30
Location : Berakas

PostSubject: Bert Kammerer's Spartan tip   Tue Apr 07, 2009 1:20 am

Heli specific notes:

T-Rex 250:
If you use a DX-7 Transmitter and your gyro sensitivity (gain) is
configured to use the gear channel via end points (ATVs), you should
set this value initially at 25; this is a good starting point, but it
will need to be adjusted. Small helicopters, such as the T-Rex 250 are
too picky with the gyro settings based on the specific setup, tail
resistance, tail blades used, etc. Simply start at 25 and fine tune
from there. Also, your ATV for the rudder (pirouette speed) can be set
at 110 to 115 to start. I have mine set at 125, but that is a little
fast for some people. An occasional tail bounce during hard stops is
normal with a heli this size due to the tennis racket effect.
However, this should not affect the ability of the gyro to hold the
tail during fast backwards as well as sideways flight.

T-Rex 450:
If you use a DX-7 Transmitter and your gyro sensitivity is
configured to use the gear channel via end points (ATVs), you should
set this value at 45; this is a good starting point. Also, your ATV for
the rudder (pirouette speed) can be set at 110 to start. I have mine
set at 130. I noticed a little bit of tail bounce during hard stops; I
corrected this by reducing the stop gain to 80 from 100 (already
configured in the 450 file above).

T-Rex 500:
If you use a DX-7 Transmitter and your gyro sensitivity is
configured to use the gear channel via end points (ATVs), you should
set this value at 37; this is a good starting point. Also, your ATV for
the rudder (pirouette speed) can be set at 110 to start. I have mine
set at 130. This helis tail feels perfect with stock settings.
As far as gyro mounting is concerned, I recommend using the metal
plate with this heli, especially if you are using a JR 3400G servo for
the tail; otherwise you might have a little tail wag thats impossible
to eliminate with your settings; the plate takes care of this.

T-Rex 600:
If you use a DX-7 Transmitter and your gyro sensitivity is
configured to use the gear channel via end points (ATVs), you should
set this value at 30; this is a good starting point. Also, your ATV for
the rudder (pirouette speed) can be set at 120 to start. I have mine
set at 140. This helis tail feels perfect with stock settings.
However, if you do hard tail reversals you might want to adjust your
acceleration/deceleration settings to avoid stripping tail gears. I
have already configured this on the 600 file above, so if you use the
configuration editor with the file provided above you should be good to
go!

T-Rex 700N:
If you use a DX-7 Transmitter and your gyro sensitivity is
configured to use the gear channel via end points (ATVs), you should
set this value at 37; this is a good starting point. Also, your ATV for
the rudder (pirouette speed) can be set at 120 to start. I have mine
set at 140. This helis tail feels perfect with stock settings.
However, if you do hard tail reversals you might want to adjust your
acceleration/deceleration settings to avoid stripping tail gears. I
have already configured this on the 700 file above, so if you use the
configuration editor with the file provided above you should be good to
go!

GAUI Hurricane 200:
If you use a DX-7 Transmitter and your gyro sensitivity is
configured to use the gear channel via end points (ATVs), you should
set this value at 28; this is a good starting point. Also, your ATV for
the rudder (pirouette speed) can be set at 110 to start. I have mine
set at 121. This little helis tail feels great with the Spartan, but
youll notice a little stop bounce due to the power of the gyro
combined with the little tail belt. I have corrected this in the EP200
file above by reducing the stop gain value.

WARNING!
These settings and configuration files work well for me. However,
depending on your flying style you might need to play with dead band as
well as other settings. This gyro is the most technologically advanced
gyro I have ever flown; the possibilities for configuration are
endless! Also, if you are using a transmitter other than DX-7, my gain
settings and rudder ATVs above WILL not be suitable. Always start with
a middle number and adjust up and down accordingly. You want to have
the most holding power without a tail wag, so you can always go up high
with your gain and start dropping it a couple of points at a time until
you get to the right number.

link to origin: http://www.bertrc.com/archives/66
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View user profile http://irwanzainal.blogspot.com
Duckster



Posts : 90
Join date : 2008-07-21
Age : 37
Location : Brunei

PostSubject: Re: Bert Kammerer's Spartan tip   Tue Apr 21, 2009 3:35 pm

+1 hahaha
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View user profile http://www.ruhaizmi.blogspot.com
 
Bert Kammerer's Spartan tip
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