Gents, There is no doubt as
I continually say that tracy's gear and
indeed tracy was 20 years ahead of his time. Being
computer illiterate
I rely on others to present something like an ECU in a
ready to go
format. For that reason I have invested in the Fueltech
ECU, but yet to
wire in. IS there any on this forum that has already
done this? Neil.
On 2/16/2017 8:14 AM, Bobby J. Hughes wrote:
> I did a little MegaSquirt 3 research after Tracy's
post. Charlie's been telling me for years he though the
Megasquirt would be a good solution. It looks very
usable for our application. The current firmware and
feature set supports 4 rotor, 3 rotor, older 2 rotor and
Renesis engines. For the Renesis using the stock trigger
wheel, a secondary CAS for a second ECU can be
positioned up to 20 degrees offset from the stock
location. This is a current firmware limitation. Using a
rotary compatible MegaSquirt wheel, each CAS position is
fully programmable. They don't support an overall "Fuel
Map Trim" feature using an external potentiometer.
However they have a "Fuel Table Blending" feature that
should accomplish the same thing. The MS3 supports two
independent Fuel Tables and you can use an external
potentiometer to adjust a bending of the tables. A
balance would need to be achieved allowing either
controller to provide full rich fuel as well as lean
cruise. My range would be 12.5:1 to 15.8:1. May be
doable.
>
> Bobby
> (love my EC3 but would like a second CAS)
>
>
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:
flyrotary@lancaironline.net]
> Sent: Wednesday, February 15, 2017 3:21 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Rotary DFI/EFI & Ign
Options
>
> Bill, Tracy and others,
>
> I should have added that I spoke with Ross about
using his system on the rotary just last week so, I
suspect his comment was accurate...unless he was juiced
up on his morning coffee as I like to be! I also
suspect Tracy is making a very good point with the
MegaSquirt system. Challenging maybe, difficult sure,
yet in no way impossible. I worked in combustion at GM
for over a decade and am an instrumentation specialist
from my graduate school days in physical science so I
have a few points of confidence to draw from. Open
source software has become a huge advantage to the RC
users so, I suspect the same will be true with
MegaSquirt despite that aviation is likely to represent
a small segment for their audience.
>
> Rick
>
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