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>SNIP< =

Mine was = purchased in Feb=20 of 2002, and I'm pretty sure I don't have the light, unless it's=20 infrared. Maybe Ed just has good eyes :-) Anyway, my unit = has the=20 plain grey display panel, with no writing on it, and it also has the = larger=20 square box.

As for = software, I don't=20 know if yours will work with the EC-2 or not, but it certainly isn't = the=20 absolute latest version. I'll have that via express mail = tomorrow=20 :-)

Cheers,=20

Rusty (I = write this crap=20 just for Todd <g>)

And on that = subject, I=20 just got back from my first flight test when I had time to really = check out=20 the latest version of the EC2 software and I am really stoaked! = It has=20 always worked well but there are a few niggling characteristics that = I've=20 wanted to address. One is the requirement to adjust the mixture = control=20 from lean to midrange when coming down from cruise to land. = Since this=20 is standard practice on Lycomings I let it go up til now but I knew it = could=20 be better. If you leave the mixture lean during low throttle = operation=20 (descending to land) the mixture tends to wander over a wide range = (especially=20 around the stagging point) and if it is too lean, there is an = occasional=20 stumble at certain throttle settings. The = new program=20 code completely eliminates this and makes the EC2 as close to set = &=20 forget as I had ever hoped. Mixture stays dead on where it = was set=20 regardless of throttle jockying, aerobatics, etc. There are also = a=20 couple of other improvements to the code but this one is the=20 biggie.

The = following excerpt from=20 the latest setup & installation guide explains the problem = and the=20 fix. Rusty is the first lucky ginney pig, uhh , I mean customer = to get=20 this update. (Will be in your hands on Thursday unless USPS = blows=20 it)

8-19-03 - Dual MAP TABLE =

As of = this date, the=20 EC2 now has a dual rpm range MAP table. Simply put, this means = that two=20 separate tables are used at low and high RPM. The dividing line between = these ranges=20 is 2400 rpm. The main = reason for=20 implementing this feature is to allow more accurate mapping of the = mixture=20 under all operating conditions. =20

It is possible for = the engine to=20 see a low manifold pressure under two very different conditions. The first is when = idling. At idle, the manifold = pressure is in=20 the range of 12 =96 13=94 Hg. (18 =96 17=94 if read on a vacuum = gauge) When on the ground with a = propeller=20 for a load, the manifold pressure will always be considerably higher = when the=20 engine is running at a significantly higher rpm than idle (typically = 1300 =96=20 1700 RPM) The low RPM = MAP table=20 will cover this operating condition and is easily adjusted during = ground=20 operation with the propeller mounted to the engine..

When in-flight, the engine can see a very different=20 condition. If the = aircraft is=20 cruising at high altitude or is descending at low throttle, the engine = will=20 now be able to run well above 2400 rpm even at a low manifold = pressures. The mixture correction for = this=20 condition may be significantly different than what was called for at = low=20 rpm. This is the reason = for=20 implementing the dual MAP table feature. The selection of = which MAP table the EC2 uses is = automatic=20 and requires no action from the=20 pilot.

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