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Subject: [FlyRotary]
Re: Question for Tracy - was: Off Topic "Switch
Placements"
Thanks
for the info, Tracy. Until a decision
is make on alternatives, what might be good courses of action (in order to get
to a place to safely land)??
Full
rich. Turn the secondary injectors off - intermittently turn them all off
if bogging.
As I understand it; turning off either
set of injectors doubles the pulse width of the other, so probably wouldn’t
help – except make it easier to turn off the other intermittently.
Perhaps some experimenting by turning the knob suddenly to full rich would be
informative.
Full
Lean. Intermittently turn on cold start or repeatedly punch program
button in 0 mode
On mine, pushing the Prog button in 0 mode
does nothing (programming disabled). The cold start switch may do the
job, but with the Prog knob turned to the right, pressing the button in mode 3
will step increase flow to all injectors.
Happy Holidays to all!
Al
Wander
around. Figure that on average it will be "just" right {:>).
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Original Message -----
Sent: Friday, December 23, 2005 11:02 AM
Subject:
[FlyRotary] Re: Question for Tracy - was: Off Topic "Switch Placements"
Answer would depend on the exact nature of the 'open' . Open at
ground end, hot end, or wiper. Answers in order: mixture goes
full rich, full lean, wanders around at last set point. The pot used is a
high rel part rated for 500,000 cycles but of course anything can fail.
Most
pot failures are 'dead spots' where the wiper goes open at a certain spot
(usually near where it is used the most). Mixture will drift at this
point and proper pilot response would be to move mixture to a slightly
richer setting, land, get the pot replaced before flying again. Thanks
for the mental nudge, I need to add this to the instruction manual.
I have pondered various fail safe strategies for this scenario (for example,
make the B controller fixed at midrange mixture) but so far have not been
satisfied with any of them. Anyone have other ideas to be considered?
-----
Original Message -----
Sent: Thursday, December 22, 2005 4:50 PM
Subject:
[FlyRotary] Question for Tracy - was: Off Topic "Switch Placements"
This
reminds me to ask a question to Tracy that wanders through my brain
when there is no civilization in sight out the cockpit windows.
Tracy: If the mixture pot fails (not all that uncommon to get an open
failure in potentiometers) what does the EC2 firmware do to the mixture?
Perry Casson
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