From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: EC3 software for Renesis RX-8/LS2 coils fixed and
 uploaded
Date: Wed, 8 Jul 2020 08:50:37 +0800
References: <list-503769@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-503769@logan.com>
Message-Id: <F51BF810-8F91-4581-9368-35834655A8C5@gmail.com>

Hi there Neil=20

I hadn=E2=80=99t been aware of the known fault in the belt.
I am absolutely with you in relation to the single point of failure. The =
ship has so many of them.

The CAS for me became more sensitive for the reasons mentioned, but also =
through my own experience.
When I received my 4 port Renesis engine, the CAS was broken off and =
hanging by the harness.
For a moment I considered fixing/gluing it back together before =
realising the insanity of that thought to save a few hundred dollars.

In my book the CAS and its wiring are a single point of failure with =
substantive risk from breakage.
Perhaps low risk, but huge consequences, so for me a focus point of risk =
reduction eg. Stainless cable embedded in CAS harness.

Cheers

Steve Izett


I hadn=E2=80=99t realised the issue of the belt being

> On 8 Jul 2020, at 7:12 am, 12348ung@gmail.com =
<flyrotary@lancaironline.net> wrote:
>=20
> Steve,
>                That incident involved taking off with a known crack in =
the belt.  My solution is to replace the fan belt annually.  $30 is =
cheap insurance for a single point failure.  There are many single point =
failures that we all fly with.  Engine,  prop, tyres, etc.  There is no =
such thing as Zero risk.
>    Perhaps I have lived long enough to realise I must eventually die??
> Regards,  Neil.
>=20
> -----Original Message-----
> From: Rotary motors in aircraft <flyrotary@lancaironline.net>=20
> Sent: Wednesday, July 8, 2020 9:03 AM
> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Re: EC3 software for Renesis RX-8/LS2 coils fixed =
and uploaded
>=20
> In relation to the CAS
> After an incident here in Perth Western Australia, I chose to make =
changes to the CAS wiring.=20
> It being a single point of failure.
>=20
> A Glasair 3, IO540 with dual electronic ignition, had a belt failure =
which took our its single CAS input.
> Pilot did an emergency landing onto a school oval totalling the =
aircraft and both pilot and passenger spent many months in hospital with =
horrific burns.
>=20
> I chose to install the BUSENSOR option.
> Now the CAS itself electrically an inherently reliable devise.=20
> But it is just plastic and vulnerable to breakage if struck.
> And the wiring harness may be vulnerable.=20
> I added a stainless steel cable into the CAS wiring, anchored securely =
to protect it from a belt breakage.
>=20
> Cheers
>=20
> Steve Izett
>=20
>=20
>=20
>=20
> I went for the=20
>=20
>> On 8 Jul 2020, at 5:49 am, Stephen Izett stephen.izett@gmail.com =
<flyrotary@lancaironline.net> wrote:
>>=20
>> Hi Finn
>>=20
>> I have a backup CAS that I was using with my EC2 way back and at one =
point it was working.
>> Its mounted 90 degrees anticlockwise from the standard Renesis CAS=20
>> (looking at the CAS end of the engine) Its not being used with the =
latest Closed Loop (autoprogram) code I have in my EC2 at present.
>> I can=E2=80=99t recall if thats because the BUSENSOR flag wasn=E2=80=99=
t set or internal code issues.
>>=20
>> Steve Izett
>>=20
>>=20
>>=20
>>> On 7 Jul 2020, at 10:27 pm, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>>>=20
>>> I'm fairly sure the backup CAS sensor input does go the the CPU =
chips. TP2?
>>>=20
>>> ";09-04-03  ADDED B CONTROLLER LOGIC TO USE 30 DEG EARLIER TIMING ON =
BACKUP CAS IF PRESENT.
>>> ...
>>> ;05-12-10  MODIFIED 0xB1 TO USE THE SAME TIMING ON BACKUP CAS AS =
PRIMARY  THIS IS FOR LS-2-7 ENGINES.  MUST TEST!!!!!
>>> ;Found error in B1 tp2 rout & fixed.  Runs OK now."
>>>=20
>>> BUSENSOR    EQU    0x00        ;0 =3D NO BACKUP SENSOR, 1 =3D BACKUP =
INSTALLED (0xA8,0xA9,AB,AD,B1,B2,B4 0-200 ENGINE ONLY)
>>>=20
>>> Looks like it's a programmable option.
>>> Seems I've read elsewhere that is has to be mounted 90 degrees =
earlier than the main CAS.
>>> I was going to look into that at some point. Other than the output =
switching relays, the CAS is pretty much the only single point of =
failure.
>>> I tried to Google it but didn't really find any evidence of RX-8 CAS =
sensor failures. However, can be bought as a spare part ...
>>>=20
>>> Perhaps someone out there has already implemented it and can tell us=20=

>>> how. (Automatic or require a switch?)
>>>=20
>>> Finn
>>>=20
>>> On 7/6/2020 7:21 PM, A RICHARD GOLDMAN argoldman@aol.com wrote:
>>>> Additionally I think there is an input for a second CAS something =
tells me that that was for future and it goes nowhere. Any thoughts?
>>>> Rich
>>>>=20
>>>> Sent from my iPhone
>>>>=20
>>>>> On Jul 6, 2020, at 5:33 PM, Stephen Izett stephen.izett@gmail.com =
<flyrotary@lancaironline.net> wrote:
>>>>>=20
>>>>> Hi Rich.
>>>>> What=E2=80=99s the RMS?
>>>>> I have had the same question re knock input.
>>>>>=20
>>>>> Steve Izett
>>>>>=20
>>>>>> On 7 Jul 2020, at 3:38 am, argoldman@aol.com =
<flyrotary@lancaironline.net> wrote:
>>>>>>=20
>>>>>> Hi Fin, and all
>>>>>>=20
>>>>>> Been  pouring over the schematics etc. for ec-3 and em-3 that =
have been posted.
>>>>>> At the outset let me confess that I am a rank dyslexic beginner =
at reading (and understanding) schematics.
>>>>>>=20
>>>>>> I have a ec-3 and em-3 which my records show that I purchased in =
April of 2010.
>>>>>> Reading through the documents, it seems like the only change he =
made with the  6/13/12 update was to substitute a .001uf cap for =
existing at C28. Was the only change. For what reason was it done and is =
it suggested to make that modification.
>>>>>>=20
>>>>>> I also noticed that he has an input lead pin 38 IC1 for a knock =
sensor.
>>>>>>=20
>>>>>> Was there a software update between when I got mine and when he =
stopped shipping. Is it available and is it significantly important. Was =
the knock sensor included in that upgrade?
>>>>>>=20
>>>>>>=20
>>>>>> HELP!!!  I'm learning just enough to become dangerous (mainly to=20=

>>>>>> my psyche) as I near the engine installation and testing =
(probably=20
>>>>>> early next spring or with the weather we have been having--mid=20
>>>>>> winter. (Chicago)
>>>>>>=20
>>>>>> Any suggestions (other than to can the RMS (already installed)) =
to soothe my psyche?
>>>>>>=20
>>>>>> Thanks again
>>>>>>=20
>>>>>> Rich
>>>>>>=20
>>>>>>=20
>>>>>>=20
>>>>>>=20
>>>>>=20
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