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Lane check procedure help

  • Roger Lee
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2 months 4 weeks ago - 2 months 4 weeks ago #16681 by Roger Lee
Roger Lee created the topic: Lane check procedure help
You can induce a Lane failure by performing the Lane checks incorrectly.
Here is a bulletin that Flight Design published to help people understand how to do a Lane check correctly and not try and do it like a conventional mag check.

This may help some avoid warning lights.


Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-574-1080 Home (TRY HOME FIRST)
520-349-7056 Cell

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Last Edit: 2 months 4 weeks ago by Roger Lee.
The following user(s) said Thank You: Ken Ryan

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2 months 3 weeks ago #16695 by Rob Seaton
Rob Seaton replied the topic: Lane check procedure help
This has good information on a proper Lane check but it attempts to justify a crappy switch instead of issuing a modification to convert to toggle switches.
For everyone building a 912iS; please note this document was released in 2015 but the Rotax Installation Manual revision (Aug 2015) has removed all reference to rotary switches.
It is highly recommended to use the much more reliable and intuitive toggle/rocker switch.

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  • Roger Lee
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2 months 3 weeks ago #16705 by Roger Lee
Roger Lee replied the topic: Lane check procedure help
Hi Rob,

I know it's better and toggle switches are recommended, but some of these aircraft Mfg's are still using rotary.
I think the number one problem causer of the 912iS engine is Mfg's or owners wanting to wire things their way and not the way Rotax needs it setup.
Makes life easier just to follow Rotax's tested and researched setup.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-574-1080 Home (TRY HOME FIRST)
520-349-7056 Cell

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  • geoffrey klestadt
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2 months 3 weeks ago #16722 by geoffrey klestadt
geoffrey klestadt replied the topic: Lane check procedure help
i eventually went with toggle switches. The stakes are higher for key switches on this engine. In a magneto equipped aircraft and the key switch fails, you might not be able to start or not stop a running engine. With a 912 iS, if the switch fails, the motor can stop. I've bought AN/MS switches that are not very expensive. You need seven of them plus a master switch. (lanes A and B, pumps 1 and 2. Start power, start and emergency battery.).

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