Flight Mode on a Timer?

I got an email about this thing. Dude, those Norwegians are crazy. But hey, someone want’s something, we’ll fix it! (Despite color-pictures this works on 14/16/24 transmitters.)

Flight Mode on a timer

At first I thought that this would take two minutes and I was so wrong. I almost got cought in one small issue but more on that later.

Functions – Limitations

Of course, rules apply:

  • Time is limited. In my way the maximum time is 1999.6 seconds. That is 33 minutes. Well, “limited” is kinda fun, should be plenty for most of us …
  • Time is limited due maximum time in sequencer. That is 999.9 seconds.
  • Order of Flight modes still applies

How to achieve a Flight mode active for 5 seconds only

First, let’s make a sequencer:

fm_001

What we have here is few things. First of all, we activate the sequencer with momentary switch Sb. Next we define two base-values for timeline. First is at 0.0 seconds, make this to -100% (That’s negative 100%). Next make another on 0.1 seconds but at 100% (Positive 100%.)

Now, if I need a 5 second flight mode we calculate that 5 to half, we are at 2.5 seconds. Add 0.1 and we get 2.6 seconds.

So, make another point on timeline, this time on 2.6 seconds, and once again value is positive 100%.

To be mathematical it would be:  SequencerLastTime is DesiredTime divided by two and added with 0.1.

Dude. My second-grade math-teacher would be so proud right now! So, adjust time after your needs.

All right, get on the advanced settings:

fm_002

Make settings according above. Symmetrical, no cycling and always finish sequence. Give a name also so you know later on what you are doing.

Hang on, a small issue here…

One would think that “we have a sequencer as a switch, let’s assign that sequencer to flight-mode selection”. In theory yes, in practice not so much. For reasons beyond me sequencer cannot be used in flight mode selection so we need to be creative…

Let’s make a Logical Switch:

fm_006

We need only one input on this logical switch, so no need to think of any “AND”, “OR” or anything. Make sure you select the sequencer as in picture below, that is centralized and proportional:

fm_005

So, now we are in business.

Flight modes

Finally we are in the flight modes! Check out the picture below:

fm_007

As you can see I have now 5 flight modes. If I’m on any lower three flight modes (Default, Idle 1 or Idle 2) and use my momentary switch I will be in flight mode “Timer” for 5 seconds and then return to the flight mode that was active before.

Note that in my example flight mode “Autorotation” is overriding everything. If this would be my real heli I would have “Hold” on top.

So, that was it, easy after all :)

But, hang on, why?

I really do not know. Ask those Norwegians, they wanted it! I’m just as curious as you!

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