ORIGINAL: A.T.<span style="font-size: smaller"> No. Changing the Trim Step does not effect any control surface until the trim button is next actioned. Then the number of steps per "click/beep" changes from the default setting (12 )whichallows rapid adjustment on a first flight. Reducing the number to say 6 provides for muchfiner tuning on subsequent flights. Increasing the the number to say 25 provides for coarse tuning or greater movements per click/beep.
For those new to adjustable trim steps,place model on a table and watch what happens as you try various settings. As the number rises above say 20, large movements become apparent with only say 4 steps between fully up and down when trim step is set to max..
Trim step has adjustable settings from 1-200 with 12 default (Approx.0.025deg ~ 5deg / Step).
The size of the trim step can be adjusted in the System — Trim Step function menu as attached.
Alan T</span>.
<span style="font-size: smaller">Further to above and answeringquestion on another thread:
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<span style="font-size: x-small">Sub trims are only used whilst model is being set up -
should never re-adjust sub trims at a later time without a re-set of that model program and start over.
</span>
<span style="font-size: smaller">(ex manual page 77)
</span>• There are two screens to the EPA menu. Note the 1/2 Icon.
• The EPA range is O% to 140%.
• Sub-Trim and Dual Rate functions can Impact the programmed EPA values.
<span style="font-size: x-small"><font color="#22229c">Aurora 9 - Programming Chart</font></span><span style="font-size: x-small"> and attached extracts from Aurora manual may assist.
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<span style="font-size: smaller">Whilst written at time of Futaba FF7, 8UAP, Eclipse, Optic 6 etc., believe following is still relevant:
</span><span style="font-size: x-small">
<font color="#22229c">EPA & ATV - Dual Rates differences & Cautions </font>
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Service Bulletin <span style="font-size: smaller">TX-20100520 Aurora 9 Transmitter - Using EPA and D/R Functions Create Dead Zone in Stick Travel
We have confirmed customer reports of a software bug involving the End Point Adjustment and Dual Rate functions.
When both functions are at their highest settings, there is a significant dead zone at the stick endpoints.
Until this issue is resolved in a future software update, it is advisable for customers to keep either
the D/R or EPA setting at 125% or less and the other at 120% or less.
</span>Alan T.
<font color="#22229c">Alan's Hobby, Model & RC FAQ Web Links</font></p>