Maybe so, but it seems no farther than it is in the
car and that has to work quicker than it does in our app. Cars don’t go
all squirrely when you coast down a long hill??? We all need broad band
sensors so we can tell what is really going on. I am hoping that Ed will
get upset by all this and build one we can buy from him for about a
buck! :>)
When can we expect the prototype,
Ed??
Bill B
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mike Wills
Sent: Saturday, January 02, 2010 12:16
PM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
Re: first flight of the new year
My exhaust header is an equal
length type with 28" inch primaries into a 2 -> 1 merge collector. The O2
sensor is threaded into the collector so I estimate it is about 36" from the
exhaust port. It usually takes about a minute for the readings to settle down
after a cold start, but I've always assumed that they were accurate - even at
idle. Maybe that is an incorrect assumption.
Sent:
Saturday, January 02, 2010 6:48 AM
Subject:
[FlyRotary] Re: first flight of the new
year
Happy New Year everybody!
Mike,
How far from the exhaust ports is your O2 sensor
located? Does anyone know what the minimum temp is for the O2
sensor? 800 degrees?
Bill B
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Saturday, January 02, 2010 8:31
AM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
Re: first flight of the new year
Happy New Year to
you, Mike
Wow. I’ll bet
you are glad to be in a different year and glad the old one
gone.
I noted your comment
on the lean/rich possible O2 cause. Do you have a heated (3-4 wire) O2
sensor or an unheated one??
Ed
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mike Wills
Sent: Friday, January 01, 2010 9:43
PM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
first flight of the new year
Hope the holidays are treating
you all well. Things are kind of slow on the list this week. So figured I'd
get things going.
I havent flown for almost 2
months. First my nephew's accident (he's recovering amazingly well). Then
travel for work. Then had to do an annual on the airplane. Finally, had
surgery to remove my appendix and gall bladder. Been a busy couple of
months.
But I'm feeling pretty good now,
the airplane is ready for its first flight after the annual, and today was a
spectacular day here with clear blue sky, unlimited visibility, light breeze,
and temps in the mid 60s. I resolved a number of minor issues during the
annual, including the gas smell that I've been living with for a while
now. Found my left tank vent line was loose where it penetrates the bottom of
the fuselage so was venting into the cockpit. The smell is now completely
gone.
Also found a solution to a
problem I've been noticing since I've started flying further from the airport.
I'd noted on previous flights when returning to the airport with a long low
power descent that the engine runs quite lean as I enter the pattern requiring
the mixture knob to be turned full rich. On a couple of occasions I've had
some misfiring as I turn final - quite an attention getter! Today I realized
the problem was a non-problem, in other words operator error. While descending
(and for that matter, frequently at other times) I tweak the mixture based on
the mixture monitor reading. Today I ignored the monitor and just left the
mixture alone which worked just fine. I think during prolonged low power
descents the O2 sensor cools off and provides an inaccurate reading. The
occasional misfire was the result of running too rich (the mixture monitor
indicated mid range readings).
So todays flight was trouble
free and gets me an hour closer to the end of phase 1. 18 hours down, 22 to
go.
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