Simple electric system

[ghost]

Hi! After adding the electric switches now, I'd like to ask which of the instruments need electrical power?

ATM I'm doing it like this:

(done by draw.io)

Is this correct? Or are the front and rear circuits independent?

(done by draw.io)

[viktorradnai]

Yes. For the turn and slip indicator to work, both panel switches need to be on. The radio and electric vario both have their own on-off switches on the device. Since the turn and slip indicator doesn't have one, the extra switch is added to the panel. The master switch disconnects the battery from the system so it switches off everything.

On 4 Apr 2017 14:17, "D-ECHO" notifications@github.com wrote:

Hi! After adding the electric switches now, I'd like to ask which of the instruments need electrical power?

ATM I'm doing it like this:

Battery -> Master Switch -> AR-3201 (comm) -> e-vario -> turnslip switch -> turnslip indicator

Is this correct?

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[ghost]

And is the front master switch for the front panel only or for both?

[gilbertohasnofb]

@D-ECHO very nice diagrams by the way

[ghost]

Partly done in fabf4a2fa864aed98c6eb9ce0a372625e4660a0a

[viktorradnai]

There are a couple of outstanding issues with the electrical system and this seems like a good place to make note of them.

1. The slip ball does not work unless the turn and slip coordinator has been powered on. Obviously that ball is an entirely mechanical device that should always "work".
2. The electric vario should not beep until the master switch has been turned on.

[ghost]

Should be fixed by a9e754526b1224e365f0b71728b78738976fe6a1

[viktorradnai]

This looks almost perfect now, the only outstanding problem is that the turn/slip coordinator needle does not return to the middle if the power is turned off while in a turn. It will just stay where it was when you turned it off.

[ghost]

Does the RL turn needle return to the middle, I though it would probably just stay if there's no power

[viktorradnai]

I would assume that there is a spring that pulls it back and the forces generated by a rotating gyro pull it out to the side when turning. But it needs testing.

[ghost]

According to http://walter.bislins.ch/aviatik/index.asp?page=Wendezeiger, the needle returns to its normal position pulled by a spring, so I'll model it like this. Question is, should we also simulate that the gyro rotates still for some time even with electricity cut off?

[viktorradnai]

It would be nice to. Some other aircraft must have already implemented this.

On 26 Dec 2017 19:15, "D-ECHO" notifications@github.com wrote:

According to http://walter.bislins.ch/aviatik/index.asp?page=Wendezeiger, the needle returns to its normal position pulled by a spring, so I'll model it like this. Question is, should we also simulate that the gyro rotates still for some time even with electricity cut off?

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[ghost]

actually the instrumentation code of flightgear already implements a simulation of the gyro, but with the needle going to -2.5 instead of anticipated 0 when gyro stops spinning Still, I guess there's a reason for it so I'll use that system, only thing to be modified is the turn switch to cut power from the turn indicator instead of just stucking the needle

[ghost]

see #153