Thanks for the kind of recognition Rotorheads can only dream of!
Today was a brief day at the airport.
The radiator cap issue was all my fault. It has a strong spring, maybe a 20# rating? I hadn't pushed it down and turned it that last bit.
I had to tighten some fuel line B nuts, top off the coolant, reinstall the cowl top and tie the tail to the car.
About then the local A&P who used to annual my Cessna drove up. We chatted about the plane for a while, then I got in and started it up!
He was pretty interested in the sound and how it ran as I warmed it up.
After a few minutes he left. About then it was getting 135F coolant and 145F oil, so I started adding power.
Up and down adjusting mixture, scrolling the monitor pages for fuel flow, estimated power, RPM manifold pressure, water pressure (now 17# instead of 4#) etc.
All was running good and sounding sweet. (loud but even and smooth) I put on my Peltor headset with Headsets Inc ANR.
Better. I turned on the ANR and it is going to be fine. The Turbo does attenuate the noise.
I eventually ran it up to 50% rated power @ 4800 RPM, today it ran fine. The water temp holds at under 170F, but above 4500RPM the oil temp climbs. So after a bit of reduced power and cooling of the oil, I went back up, this time to 5000 RPM, which indicated 40 inches of manifold pressure and about 60% power. I didn't spend much time at these power ratings, but did see a brief period at 44 inches and 74%.
Also I tested the B controller, which I have not been tuning, aside from the initial mode 3 change to accomodate my 450cc primary injectors. I have GM style 850 # secondary injectors, which might flow marginally more than the 450cc units they replaced, so I seem to be getting richer as I increase throttle?
Anyway, the B controller seemed to run maybe better than the A, so I need to review the difference. The igintion cutout switch worked similar to a mag check, sweet!
More time reading the manual. My confidence is increasing.
Today's run time was 26 minutes. A little water burped out the already full overflow can afer I shut down. Total time is 4.9 hours.\Post run inspection was good. I could have run longer.
Throttle response is notchy as various stages kick in and out, but sofar all is within the mixture control range.
I suspect these can be smoothed out before first flight. I still have to put on the wing tips, add the radios, antennae, lights etc.
Press On!! The closer it gats the more fun you have!!
-----Original Message-----
From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Feb 28, 2012 9:44 am
Subject: [FlyRotary] Re: Thermostats.
Chris Barber wrote:
> 150 dbs...WOW, I was concerned about my mid 90's, IIRC. I knew the
> turbo helped but didn't realize that much.
>
>
>
> Well, that is according to my I-Phone meter. The folks around still
> think my plane is LOUD.
>
>
>
> Yes, it is fun to turn Dino's into Decibels. Now, maybe to actually try
> to fly reliable and safely.....
>
In a few more days we'll see how well my TAR engineered muffler tones it down.
--
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