[NSRCA-discussion] JR9303 Throttle cut/hold in airplanesoftwarefor e-power

[J N Hiller]

I don't know anything about JR could it be a sub-trim offset.
Jim

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Ihncheol Park
Sent: Sunday, March 22, 2009 12:41 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] JR9303 Throttle cut/hold in
airplanesoftwarefor e-power

For those that may have interest in the result.  I got the result with Type
2 listed below.

I used PMix 3 : Throttle to Throttle.  Pos 0 with 0%/0%, Pos 1
with -100%/-100%.  -200% Offset.
Switch was set for mix switch.  Now I can cut the engine at any throttle.
With a flip of the mixing switch, motor will not turn at any throttle.


Somehow, I still can't make the Type 1 to work.  The motor still turn at low
RPM wtih POS1 values set to all 0.  POS0 has been set to curve that I
wanted.

Thanks to all those who replied.

Ihncheol

  _____

From: Troy Newman <troy at troynewman.net>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Friday, March 20, 2009 2:09:50 PM
Subject: Re: [NSRCA-discussion] JR9303 Throttle cut/hold in airplanesoftware
for e-power

two ways to do it.

type 1
One go into your throttle curve and seta  switch that will give you a  Curve
POS0 and curve POS1 set one of those curves to all Zero values. just run
them all down to zero...this will disable the throttle stick. You are
fooling the throttle into following a new curve...one that drives the servo
to zero throttle and doesn't change as the stick moves up and down.


type 2
The throttle to throttle mix works...but here is what you are doing in the
logic. Throttle to throttle mix says take the current throttle stick
position and mix a % of throttle to it. So if you had a mix value of -5% and
your throttle stick was at say 35% the mix would take the 35% and subtract
the -5% from it.

So the output value would be 30% NET.

The way you have it setup now with a 0% at each point you are saying take
the current stick position and add or subtract ZERO from it. So you are not
doing anything.

To make this option work....do this.

Don't use a curve mix. Use a normal linear mix.
Set the values at -125% or even -150% if they will go that high....I don't
have my 9303 in front of me right now.

This will take the current position of the throttle and subtracts out all
values and the throttle should not move. You may need to mess with the stick
position value as it appears with your everything works below 1/4 throttle
statement means you probably changed this from the default.

The stick pos or thro stick function on these mixes allows the mix to turn
on or off or change from one mix value to another at a given throttle stick
position. Its basically setting the inflection point where the throttle
stick activates the mix. If you thro stk value at 1/4 throttle stick then
this would make the mix change from POS0 to POS1 at that throttle stick
location. This allows you to play with this type of mixing in order to
customize it even more than a simple on/off. Example is you can have
different mix settings based on your throttle stick location. If you want
3%up elevator with rudder for knife edge. You can use the throttle stick
position to change it to 8%up elevator when the throttle is below say 10%
and have the same 3% knife edge mix when the throttle is above 10%

This allows you to have really 2 mixes or rather mix values built into one
mix....Or you can leave one value as ZERO and this will make the mix turn on
or off at that point just like it was a switch.

After all this is said

I prefer the throttle curve method I suggested at first. This is type 1

if you have Q's send me a line and I'll work it out with you. I can get my
9303 when I get home and walk you through it.

Troy Newman
Team Horizon Hobby / Team JR

________________________________

From: nsrca-discussion-bounces at lists.nsrca.org
<mailto:nsrca-discussion-bounces at lists.nsrca.org>  on behalf of Ihncheol
Park
Sent: Fri 3/20/2009 10:03 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] JR9303 Throttle cut/hold in airplanesoftware
for e-power


Stuart,

It is for JR 9303.  The mixing is set for entire range of the throttle stick
to have output of 0 on a flip of mixing switch.  It still turns.  It is the
only mix that I use switch.  I try to set all other mixes on permanently.
Somepeople suggested using Heli software for it, but I don't really like it
on airplane.

Ihncheol


________________________________

From: Stuart Chale < schale at optonline.net <mailto:schale at optonline.net> >
To: General pattern discussion < nsrca-discussion at lists.nsrca.org
<mailto:nsrca-discussion at lists.nsrca.org> >
Sent: Friday, March 20, 2009 11:54:11 AM
Subject: Re: [NSRCA-discussion] JR9303 Throttle cut/hold in airplane
software for e-power

Depends on the radio, Futaba higher models have throttle hold, or conditions
that could be used.  Just set a condition where the throttle is always at 0.
You can probably get more specific info if we know the radio.  On another
note I did have a throttle hold set to a switch, rarely used it and forgot
about it.  Added a mix assigned to the same switch (14MZ) and when activated
the throttle well you figured it out.  Damaged the plane on a dead stick.
Even though I unflipped the switch what I didn't remember is that the
throttle stick had to be cycled back to 0 to reset it, a safety feature
preventing you from accidentally flipping the throttle hold off with the
throttle advanced.  I no longer use a throttle hold.
Stuart

Ihncheol Park wrote:

    Ok.  I have a question to all those who fly E-power.
    I've been flying a little of e-powered planes, but mostly foamy and
small ones.
    Now going with 90 size before starting 2m.

    Is there any way to set throttle cut/hold in Airplane software for
entire range of the throttle?
    I've mixed throttle to throttle on a switch to 0 in all 5 point.  It
works on idle, but not if I move the throttle stick more than 1/4 throttle.
Motor still turns.

    Am I missing something?

    I don't want that 19 + inch props turn without my approval!

    Thanks,

    Ihncheol

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