Lane A and B check after start
After starting a Rotax 912iS we are suppose to check Lane A and Lane B.
What are we looking for and what does it prove?
Thanks,
Bill
After starting a Rotax 912iS we are suppose to check Lane A and Lane B.
What are we looking for and what does it prove?
Thanks,
Bill
Re: Lane A and B check after start
by Glenn Martin » 4 months ago
The traditional reason for a run up to check whether both ignition systems are working does not apply the red lights do that. In effect the ECU's are constantly checking both ignitions and will let you know. So why do it ?? I suppose it proves that either ECO can run the engine but again they self check constantly....
So I struggle to find a good reason to do it....but of course I still do !!
Re: Lane A and B check after start
by Jim Isaacs » 4 months ago
Hi Glenn,
What red lights are you talking about?
Jim
Re: Lane A and B check after start
by Jason Fish » 4 months ago
The Lane A and B warning lights on the panel. Usually red, could be amber or "other," I suppose.
Re: Lane A and B check after start
by Rotax Wizard » 4 months ago
Hi all
The ECU has 2 seperate sides. Lane A and B. They are very different in what sensors they read. One thing to note is that each controls one set of spark plugs and one set of injectors. The run up and check are for you to note any problems. This is done after both generators are online. (you have to get RPM to above 2500 to excite the second side to function and then synchronize.
Think of this like the Mag check in a conventional engine, it is just to verify everything is working correctly. Depending on what instrument package you have it could be very important. Not all are fancy like a Garman for example.
The reasons for each call-out check, found in your operators manual, are very clear.
Cheers
Re: Lane A and B check after start
by Jim Isaacs » 4 months ago
Thanks all. Jason, those warning lights are not installed on my aircraft.
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