Dumb Question

[HeliDan]

OK guys, I have been using G3 for a few months now and like it. I upgraded to 3.5 and it is way more squirrelly than 3. Now I am looking in the expo function. I know that it has to be set for each of the five parameters:
CH #1-L/R Cyclic
CH #2-Collective
CH #3-Throttle
CH #4-Rudder

There are two expo values for each parameter, high and low.

My questions are:
What should I set the low values to?
What should I set the high values to?
Should all the low values be set to the same rate?
Should all the high values be set to the same rate?
Should the collective and throttle be set to the same rate?

Thanx for any help guys!!

I really appreciate it!

:cheers :noteworthy

[woodturner]

I'm not a G-3 expert, however over on : http://www.knifeedge.com

In the forums section:

http://www.knifeedge.com/forums/showthread.php?t=15063&highlight=expo

I found the below info..

From the menu select:

Aircraft: Edit XXX AIRCRAFT: Options: THEN CHECK Display Advanced Properties

CLICK Airframe from the Aircraft Editor:

Edit as you desire each of the following which have parameters that affect the aircraft flight OTHER than the control surfaces throws, surfaces, airframe, power, airfoil and the dimensions of each that effect flight along with weights and mass distribution ( centroid ) and just about ever other parameter that have some affect on the dynamics of flight.

If you only change the control surface throws, CG (center of gravity), power (Torque for Engine Modification %) and keep the simulated model other wise dimensionally the same some of the important parameters you can play with their settings are under

ENGINE: prop wash factor %, back torque factor %, helical wash rotation factor %

VERTICAL TAIL, HORZONIAL TAIL, MAIN WING & FUESLAGE:
Stall Severity %, Snap Roll Boost Factor %, Post-Stall Moment Factor % and (factor that seems to have a lot of effect) Parasitic Drag Factor % .

To maintain control with the center panel of the main wing & horizontal tail enter the stall zone add WASH OUT at TIP + degrees (so that the tips stalls last ) and adjust the Incidence at Root ( Main Wing ) compensate for adding TIP Wash Out.

And of course the factor with will affect the control satiability the most is the CG location.

There is a adjustment found when you click the name of the Aircraft in the Aircraft Editor that provides adjustment of Vehicle Physics Scale %. This adjustment scales the effective size of the aircraft making it in terms of the Physics LARGER or SMALLER the current PHYSICAL scale. I personally don’t recommend doing what many do which is to increase the PHYSICS Scale other then to allow you to fly a aircraft beyond you skill level by making it respond slower that the real scale of the aircraft for training purposes.

By slowly reducing the PHYSICS SCALE as you skill improves is a good training technique as you get back to the same PHYSICS SCALE as the PHYSICAL SCALE you are flying at.

Lastly after you have cranked up the throws and what ever other factors you decide to adjust you can play with the RADIO settings by:
Increasing the EXPO (exponential) During High Rates % to something like 80% or better so that you have the effect of decreasing the Surface THROW for Control Stick Deflection at values under the EXPO point you set in. This gives you max throw when you bang the stick and more sensitive control below the EXPO point.

Personally I set the LOW RATE throws for pattern type control movements where I want more of a modulated control effect and HIGH RATE throws to give me at the EXPO point max surface deflection for 4D type extreme control maneuvers. That would be for most aircraft radio setups OUTPUT Channel 1, 2 & 4 which is where you adjust the LOW RATE % throw and LOW RATE EXPO & HIGH RATE EXPO.

Beyond what I have mentioned just edit and save under a different mnemonic name (so you can later compare the effects) all factors as you discover the degree of control KnifeEdge has provided for us to play with keeping in mind that if your purpose is ONLY to simulate a REAL MODEL you want to practice fly then likely will quickly produce results that don’t match a REAL RC MODEL and enter the are where you are experimenting with WHAT COULD BE MADE by simulation aircraft design.

This of course lead you to scratch build a model based on a simulation aircraft design to produce the flight results you desire as opposed to flying only that which other have designed.

The above paragraph is a bit of an editorial as some percentage of the G3 users seem to only see G3 as a REAL AIRCRAFT RC Simulation software and don’t explore the realms of Aircraft DESIGN that G3 provides in simulation.

As a retire Electronics Design Engineer I only wish I has such tools back in the days when I was doing circuit & systems design.

[HeliDan]

I appreciate the help but, I may be mistaken, but I don't just change the exponential settings? I really don't want to re-design the aircraft, just use the expo feature. Do I really need to do all the things you just mentioned above?

[kama1]

expo would be set for alleron and evevator
do not have to put expo on everything
as far as min and max thats up to you :mrgreen: